Definitive Healthcare vs H1 Insights: Which Healthcare Data Platform Fits Your Team?

Choosing between Definitive Healthcare and H1 depends on what your team needs from healthcare data. Definitive Healthcare focuses on commercial intelligence for organizations selling into the U.S. healthcare market, including hospitals, physicians, and medical technology buyers. H1 provides healthcare professional intelligence, clinical research insights, and expanding provider-network intelligence for life sciences, health plans, and other healthcare organizations.

Both platforms offer data and insights for healthcare-related decisions, but their strengths and use cases differ. Definitive Healthcare is worth evaluating for commercial account planning, market analysis, and medical technology targeting. H1 is worth evaluating for clinical trial planning, medical affairs, key opinion leader (KOL) discovery, and provider-network intelligence.

If your primary goal is to find verified contact details for physicians, practice owners, hospital administrators, and other healthcare decision-makers, you should also evaluate platforms built specifically for healthcare sales prospecting.

We compares Definitive Healthcare vs H1 across features, data coverage, pricing, use cases, and alternatives to help you choose the right platform for your team.

Key Takeaways

• Definitive Healthcare: A strong candidate for U.S. healthcare commercial intelligence, including facility data, physician affiliations, claims-related insights, and medical technology targeting.
• H1: A strong candidate for clinical research, investigator discovery, medical affairs, KOL intelligence, and provider-network data.
• Data coverage: Definitive Healthcare emphasizes the U.S. healthcare ecosystem, while H1 offers global healthcare professional intelligence alongside expanding provider-data capabilities.
• Pricing: Both platforms use enterprise-oriented sales models. Definitive Healthcare offers subscription-based access, while H1’s pricing should be confirmed directly with its sales team.
• Alternatives: Teams that primarily need verified healthcare contact information for outbound sales should compare both platforms with healthcare outreach-focused data providers.
• Best next step: Evaluate each vendor using a sample of your actual target accounts and the contact, facility, and data fields your team needs.

Definitive Healthcare vs H1: At a Glance

Definitive Healthcare and H1 serve overlapping parts of the healthcare ecosystem, but their platforms are designed around different business requirements.

Note: This is a high-level comparison, not a guarantee that every feature is available in every subscription. Confirm current product availability, geographic coverage, integrations, and contract terms with each vendor.

What Is Definitive Healthcare?

Definitive Healthcare is a healthcare commercial intelligence company that helps organizations understand the U.S. healthcare ecosystem and make data-informed commercial decisions.

Its platform brings together information about healthcare organizations, providers, services, affiliations, and other market signals. These datasets can help commercial teams identify potential customers, analyze market opportunities, plan territories, and understand relationships across healthcare organizations.

According to its FY2025 annual report, Definitive Healthcare operates through a subscription-based business model and serves customers across multiple healthcare-related end markets.

Source: Definitive Healthcare FY2025 Form 10-K.

Key capabilities

1. Healthcare market intelligence

Commercial teams can use healthcare organization and provider information to evaluate market opportunities, identify target accounts, and understand relationships among facilities and healthcare professionals.

2. Hospital and health system intelligence

Facility information, organizational relationships, and relevant market data can support territory planning, account prioritization, and commercial strategy.

3. Claims-related insights

Relevant claims and utilization insights can help organizations assess market opportunities, understand treatment patterns, and support commercial planning, subject to the datasets and modules included in their subscriptions.

4. Medical technology targeting

Definitive Healthcare acquired the Carevoyance business from H1 in January 2024. Carevoyance supports medical technology teams with market segmentation, targeting, and prospect engagement.

Source: Definitive Healthcare’s Carevoyance announcement.

Where Definitive Healthcare may be a good fit

Definitive Healthcare is worth evaluating if your team needs to:

• Identify hospitals, health systems, and other healthcare organizations to target.
• Analyze affiliations and healthcare market relationships.
• Prioritize territories and commercial opportunities.
• Support medical technology sales and marketing.
• Combine healthcare market intelligence with sales planning.

Limitations to evaluate

A broad healthcare intelligence platform may provide more analytical depth than a sales team needs for routine prospecting.

Before purchasing, assess whether your team will actively use the available market analytics and intelligence modules. If your immediate objective is to build an outreach list with verified emails, direct dials, current job titles, and exportable contact records, ask for a demonstration of those specific workflows.

For additional context, see our guides to Definitive Healthcare competitors.

What Is H1?

H1 is a healthcare data and intelligence company that helps organizations identify, understand, and engage healthcare professionals. Its platform connects physician information with professional expertise, research activity, relationships, and other healthcare data.

H1 has expanded beyond its earlier focus on life sciences and medical affairs. Its acquisitions of Ribbon Health, Veda, and Defacto Health have strengthened its presence in provider data and provider-network intelligence.

Sources: H1 newsroom and H1’s Defacto Health acquisition announcement.

Key capabilities

1. Healthcare professional and KOL intelligence

H1 supports the identification and evaluation of healthcare professionals using information such as professional expertise, research publications, and clinical activity. These insights can help medical affairs teams identify relevant experts and plan engagement programs.

2. Clinical trial and investigator intelligence

Clinical research teams can use healthcare professional and research data to investigate potential trial investigators and sites. The exact capabilities available should be confirmed against the current product offering.

3. Medical affairs support

Medical affairs teams can use H1’s healthcare professional intelligence to understand physician expertise and research activity when planning scientific engagement.

4. Provider and network intelligence

H1 has expanded its provider-data capabilities through acquisitions, including Ribbon Health, Veda, and Defacto Health. Defacto Health’s provider-network intelligence focuses on information about healthcare providers, healthcare payer networks, and accepted insurance plans.

This expansion is important when comparing H1 with platforms that focus on provider directories and network data rather than exclusively on research and KOL discovery.

Where H1 may be a good fit

H1 is worth evaluating if your team needs to:

• Identify healthcare professionals with relevant clinical or scientific expertise.
• Research investigators and potential clinical trial sites.
• Map KOLs and their research activity.
• Support medical affairs and scientific engagement.
• Evaluate provider data and network intelligence for relevant healthcare workflows.

Limitations to evaluate

H1’s capabilities span multiple use cases, but that does not mean every subscription includes every dataset or workflow.

If you are evaluating H1 for sales prospecting, confirm the availability and quality of the specific contact fields your team requires. Ask about email and phone coverage, job-title accuracy, verification frequency, exports, and CRM integrations.

For commercial buyers, the important question is whether the platform’s data and workflows align with the people your team needs to reach.

Definitive Healthcare vs H1: Key Differences

The most useful way to compare Definitive Healthcare and H1 is to start with the decisions your team needs to make rather than simply counting features.

1. Data focus

Definitive Healthcare emphasizes healthcare commercial intelligence, including organizations, providers, affiliations, and market-related information.

H1 emphasizes healthcare professional intelligence, clinical research, and related provider-data capabilities.

Which should you choose? Consider Definitive Healthcare when organizational and commercial market intelligence is central to your workflow. Consider H1 when professional expertise, research activity, clinical trials, or provider-network data is central.

2. Geographic coverage

Definitive Healthcare focuses heavily on the U.S. healthcare market. H1 offers global healthcare professional intelligence, making its geographic coverage relevant to multinational research and medical affairs programs.

However, global coverage does not necessarily mean identical data depth in every country.

Before deciding, ask both vendors to demonstrate coverage in your target regions, specialties, facility types, and professional categories.

3. Clinical research and KOL discovery

H1 is particularly relevant for organizations that need to understand healthcare professionals through their research, publications, clinical trial activity, and scientific expertise.

Definitive Healthcare is more directly associated with healthcare commercial intelligence and market planning.

For clinical operations and medical affairs, evaluate H1’s investigator and KOL workflows. For commercial market analysis, examine Definitive Healthcare’s organization, affiliation, and market intelligence capabilities.

4. Medical technology sales

Medical technology companies should pay particular attention to the Carevoyance acquisition.

Definitive Healthcare acquired Carevoyance from H1 in January 2024. The solution supports medical technology teams with segmentation, targeting, and prospect engagement.

Consequently, Definitive Healthcare is a relevant option for teams assessing healthcare market intelligence and medtech targeting.

However, a medtech team focused primarily on outbound prospecting should also test how well each vendor identifies the actual buyers it needs to reach, such as practice owners, hospital administrators, department directors, and supply chain executives.

5. Provider-network intelligence

Provider-network intelligence is an increasingly important consideration in this comparison.

H1’s acquisitions have expanded its provider-data capabilities, including data related to provider networks and insurance acceptance. This means the comparison should not characterize H1 solely as a clinical research or KOL platform.

If your organization manages provider directories, payer networks, or provider access information, evaluate H1’s current offering and compare it with other vendors specializing in provider-network data.

6. Healthcare contact data for sales outreach

Healthcare contact data is a different buying requirement from clinical research intelligence or market analytics.

Sales and marketing teams may need:

• Verified professional email addresses.
• Direct-dial phone numbers where available.
• Current job titles and practice affiliations.
• Practice owners and healthcare executives.
• Hospital and facility-level prospecting information.
• Contact enrichment and CRM-ready exports.

Neither vendor should be selected for these requirements based solely on its overall database size or market reputation. Ask for a sample that matches your ideal customer profile and evaluate how many records are usable for outreach.

Which Platform Is Right for Your Team?

Use the following guide to narrow your options.

The right choice depends on your team’s actual workflow. A platform designed for clinical research may be an excellent fit for a pharmaceutical company’s medical affairs team but unnecessary for a sales team that primarily needs accurate contact information.

Likewise, a commercial intelligence platform may be valuable for territory planning while offering more functionality than a team needs for basic contact list building.

How Much Do Definitive Healthcare and H1 Cost?

Pricing is an important consideration when evaluating enterprise healthcare data platforms.

Definitive Healthcare pricing

Definitive Healthcare sells access to its platform through subscriptions. Its annual report describes a subscription-led business model, while product access and commercial terms depend on the agreement.

For an accurate quote, ask about:

• The specific products and modules included.
• The number of users and permitted usage.
• Data exports and integration requirements.
• Contract duration and renewal terms.
• Implementation, onboarding, and support.
• Any additional charges for expanded access.

You can also review our guide to Definitive Healthcare pricing.

H1 pricing

H1’s current pricing should be confirmed directly with its sales team. The cost may depend on the products, data access, use case, and scope of the agreement.

Before requesting a quote, identify the datasets and workflows you actually need. This makes it easier to compare proposals on a like-for-like basis.

How to compare the total cost

Do not evaluate vendors only by the size of their databases or the number of features they advertise.

Instead, calculate the cost of obtaining usable data for your team. For contact-focused workflows, this could mean comparing the annual contract cost against the number of records that match your target criteria and are sufficiently accurate for outreach.

For analytics and research workflows, evaluate the value of the insights, coverage, and time saved against the total subscription cost.

When Should You Consider an Alternative?

Definitive Healthcare and H1 serve different needs, but neither should automatically be the default choice for every healthcare data requirement.

Consider alternatives if:

• Your primary objective is outbound sales prospecting rather than market research.
• You need verified emails and direct-dial phone numbers.
• You want to identify practice owners, administrators, and other decision-makers.
• You need to enrich existing provider records using NPIs.
• Your team needs contact exports and CRM-ready data.
• You want to compare the cost per usable contact across vendors.

For these use cases, an outreach-focused healthcare data platform may be a more suitable option.

What to evaluate in a healthcare data alternative

Use a sample of real target accounts to test each provider. Measure data coverage, contact accuracy, and usability rather than relying on vendor claims alone.

Where Ampliz Fits

Ampliz is an alternative worth evaluating when your primary requirement is healthcare contact data and sales prospecting.

The Ampliz healthcare data platform provides access to healthcare provider and executive data for teams that need to identify and reach relevant healthcare professionals and decision-makers.

Ampliz offers access to 9.1M+ healthcare providers and 11M+ healthcare executives. Confirm current database coverage and verification details during your evaluation.

Healthcare prospecting capabilities

1. Find healthcare professionals and decision-makers

Use healthcare professional and hospital executives data to build prospect lists based on your target market, specialties, roles, and locations.

2. Identify relevant healthcare organizations

For sales teams targeting hospitals, ASCs, and physician groups, facility and organizational information can help refine account selection and prospecting.

3. Search for healthcare executives

Executive Search supports prospect research using criteria such as job title and facility type. Verify the availability of each filter and the fields returned in your intended subscription.

4. Enrich existing NPI records

Ampliz offers NPI lookup and enrichment for teams that want to look up provider information or enrich existing lists. Test a sample of your NPIs to evaluate match rates and the fields available for your use case.

5. Evaluate contact quality

Ask about verification frequency, the process for flagging incorrect records, and the applicable credit or correction policy. These details matter when sales teams rely on contact data for outreach.

Is Ampliz the right fit?

Ampliz is worth evaluating if your team prioritizes contact discovery, healthcare prospecting, and contact enrichment over a broad clinical research or analytics workflow.

It is not a direct substitute for every capability offered by Definitive Healthcare or H1. The best choice depends on whether you need commercial intelligence, clinical research data, provider-network intelligence, or outreach-ready contacts.

If your team is comparing healthcare data vendors, book an Ampliz demo to evaluate a segment that matches your target market.

7 Questions to Ask Before Choosing a Healthcare Data Vendor

Before signing a contract with Definitive Healthcare, H1, Ampliz, or another provider, use the same evaluation process for every vendor.

1. Does the data match your target buyer? Ask the vendor to demonstrate records for your actual target accounts, specialties, job titles, and locations.
2. How frequently is the data updated? Ask how often each relevant field is refreshed and whether verification frequency varies by data type.
3. How is data accuracy measured? Request clear definitions of verification, accuracy, and record completeness.
4. Can you identify the actual decision-maker? Check whether you can find practice owners, hospital administrators, supply chain executives, or other buyers relevant to your product.
5. What is the cost of usable data? Compare contract costs against the records that meet your criteria and can be used for your intended workflow.
6. What are the contract and usage terms? Confirm contract length, user limits, export restrictions, renewal terms, and any additional charges.
7. Does the platform fit your existing workflow? Test exports, integrations, required fields, and data enrichment with your actual sales or research process.

Whenever possible, test a sample of 50–100 representative accounts before making a decision. For contact data, measure match rate and the proportion of records with usable contact details. For clinical research or analytics, assess coverage and relevance against your team’s requirements.

If you already have provider lists, compare NPI enrichment performance as part of the evaluation. Our guide to bulk NPI lookup tools explains what to consider when comparing these tools.

Conclusion: Definitive Healthcare vs H1

Definitive Healthcare and H1 are both relevant healthcare data platforms, but they address different priorities.

Choose Definitive Healthcare if your team needs U.S. healthcare commercial intelligence, organization and facility data, market analysis, or medical technology targeting.

Choose H1 if your team focuses on healthcare professional intelligence, clinical trial investigators, medical affairs, KOL discovery, or provider-network intelligence.

If your primary objective is to reach physicians, practice owners, hospital administrators, and healthcare executives with usable contact information, compare both platforms with an outreach-focused healthcare data provider before committing to an enterprise subscription.

The best decision comes from evaluating real records, data coverage, accuracy, workflows, and total cost against your specific use case.

To see how Ampliz fits your healthcare prospecting requirements, book a demo and evaluate the data against your target specialties, titles, facilities, and locations.

Frequently Asked Questions

1. What is the main difference between Definitive Healthcare and H1?

Definitive Healthcare focuses on healthcare commercial intelligence, including U.S. healthcare organizations, providers, affiliations, and market-related insights. H1 focuses on healthcare professional intelligence, clinical research, medical affairs, and expanding provider-network data capabilities.

2. Is H1 Insights the same as H1?

H1 Insights, Inc. is the legal company name associated with H1 in Definitive Healthcare’s documentation concerning the Carevoyance acquisition. H1 is the brand used for its healthcare intelligence platform.

3. Which is better for medical technology sales: Definitive Healthcare or H1?

Definitive Healthcare is worth evaluating for medical technology sales because it acquired Carevoyance, a solution supporting medtech segmentation, targeting, and prospect engagement. However, teams focused on outbound prospecting should also test contact coverage, buyer identification, and data accuracy.

4. How much does Definitive Healthcare cost?

Definitive Healthcare sells its platform through subscriptions. Exact pricing depends on the products, modules, and commercial agreement. Contact its sales team for a quote and confirm the contract terms.

5. How much does H1 cost?

Contact H1 for current pricing and product-specific terms. Ask for a quote based on your required datasets, use cases, users, and integrations.

6. Does H1 provide healthcare provider data?

Yes. H1 offers healthcare professional intelligence and has expanded its provider-data capabilities through acquisitions, including Ribbon Health, Veda, and Defacto Health. Confirm the precise datasets and functionality available for your intended use case.

7. What are the alternatives to Definitive Healthcare and H1?

The right alternatives depend on your use case. Healthcare commercial intelligence platforms may suit market planning, while clinical research platforms may suit investigator discovery. Teams focused on verified healthcare contact information and outbound prospecting should also evaluate outreach-focused healthcare data providers such as Ampliz.

8. Which platform is best for healthcare sales prospecting?

The best platform depends on your target buyers, contact requirements, geographic coverage, and workflow. Compare actual records for your target specialties and locations, and evaluate email and phone coverage, job-title accuracy, data freshness, export capabilities, and cost per usable contact.

Subbu

V. SubramanyamHead of Product at Ampliz | Healthcare Data & GTM Intelligence Expert
V. Subramanyam is the Head of Product at Ampliz, where he leads the strategy and development of healthcare data intelligence solutions that help sales, marketing, recruiting, and commercial teams identify and engage healthcare decision-makers across the United States.
With extensive experience in product management, healthcare data, B2B SaaS, GTM strategy, and sales intelligence, he focuses on building products that simplify healthcare prospecting through accurate physician, hospital, executive, and healthcare organization data. His work emphasizes data quality, enrichment, and AI-powered workflows that enable organizations to make faster, data-driven decisions.
Connect with Him:

LinkedIn: https://www.linkedin.com/in/vsubramanyam
Company: https://www.ampliz.com