List of 20 Largest Physician Groups in Massachusetts

There are 4100+ physician groups in Massachusetts. Massachusetts boasts a robust healthcare system, underscored by numerous physician groups that deliver comprehensive medical services across the state. For healthcare marketers aiming to engage with these groups, understanding their structure, specialties, and key metrics is essential. Leveraging tools like Ampliz Healthcare Sales Intelligence can significantly enhance outreach efforts by providing detailed insights and contact information.

Top 20 Largest Physician Groups in Massachusetts

Here we highlighting the 20 largest physician groups in Massachusetts by Physician Counts:

Rank	Physician Group Name	Location	Number of Physicians	Access Data
1	Brigham and Womens Physicians Organization Inc	Boston, MA	1400+	Get Data
2	Pratt Medical Group Inc	Boston, MA	600+	Get Data
3	Baystate Medical Center Inc	Springfield, MA	580+	Get Data
4	Lahey Clinic Inc	Burlington, MA	380+	Get Data
5	Community Services Institute, Inc	Springfield, MA	260+	Get Data
6	Youth Opportunities Upheld Inc	Worcester, MA	255+	Get Data
7	Clinical and Support Options, Inc	Springfield, MA	170+	Get Data
8	Tufts Medical Center, Inc	Boston, MA	150+	Get Data
9	Boston University Psychiatry Associates, Inc	Boston, MA	130+	Get Data
10	Toward Independent Living and Learning, Inc	Dedham, MA	120+	Get Data
11	Bay State Community Services Inc	Quincy, MA	120+	Get Data
12	Community Counseling of Bristol County, Inc	Taunton, MA	120	Get Data
13	Commonwealth Radiology Associates, Inc	Salem, MA	115+	Get Data
14	South Middlesex Opportunity Council Inc	Framingham, MA	110+	Get Data
15	Gandara Mental Health Center Inc	Springfield, MA	110+	Get Data
16	Massachusetts General Physicians Organization, Inc	Boston, MA	100+	Get Data
17	Boston Health Care for the Homeless Program Inc	Boston, MA	100+	Get Data
18	South Bay Mental Health Center, Inc	Attleboro, MA	95+	Get Data
19	Child and Family Services, Inc	New Bedford, MA	94+	Get Data
20	Edinburg Center Inc	Bedford, MA	90+	Get Data

Table 1: Real time data from Ampliz healthcare Intelligence. Data Accessed on January 2026.

How to Find Physician Groups in Massachusetts?

Ampliz Healthcare Sales Intelligence is a comprehensive platform designed to assist businesses in identifying and connecting with key healthcare professionals and organizations. Here’s how you can leverage Ampliz to find and engage with the largest physician groups in Massachusetts:

1. Access Comprehensive Databases: Ampliz offers an extensive database encompassing over 4.6 million physician contacts and more than 8,200 hospital contacts. This vast repository enables users to pinpoint specific physician groups based on various criteria such as location, specialty, and size.
2. Advanced Search Filters: The platform provides over 25 search filters, allowing for refined searches tailored to your target audience. You can filter physician groups by parameters like number of physicians, specialties, and geographic locations within Massachusetts.
3. Real-Time Customer Analytics: Ampliz employs machine learning and artificial intelligence to track real-time customer behaviors. This feature offers actionable insights into the purchasing journeys of physician groups, enabling you to identify prospects with a higher likelihood of engaging with your offerings.
4. Customized Data Offerings: If your requirements extend beyond standard datasets, Ampliz provides customized data solutions. By specifying your unique needs, you can obtain tailored information that aligns perfectly with your marketing objectives.

Strategies to Reach Physician Groups for Healthcare Marketing

Engaging effectively with physician groups necessitates a strategic approach that combines personalized communication with value-driven propositions. Here are some strategies to consider:

1. Personalized Outreach: Utilize the detailed data from Ampliz to craft personalized messages that resonate with the specific needs and challenges of each physician group. Highlight how your products or services can address their unique pain points.
2. Multi-Channel Engagement: Diversify your outreach methods by incorporating emails, phone calls, and social media interactions. A multi-channel approach increases the likelihood of capturing the attention of decision-makers within these groups.
3. Educational Content: Develop and share informative content such as whitepapers, case studies, and webinars that provide value to the physician groups. Educational materials can position your brand as a thought leader and build trust with your audience.
4. Leverage Data Analytics: Monitor the engagement metrics of your outreach campaigns using Ampliz’s analytics tools. Analyzing open rates, response rates, and other key performance indicators can help refine your strategies for better outcomes.
5. Networking and Events: Participate in healthcare conferences, seminars, and local medical association meetings in Massachusetts. These events offer opportunities to connect with representatives from various physician groups face-to-face, fostering stronger relationships.
6. Collaborative Opportunities: Explore potential partnerships or collaborations that can provide mutual benefits. For instance, offering to conduct joint webinars or research initiatives

Conclusions

Navigating the healthcare landscape in Massachusetts requires a strategic approach to connect with the largest physician groups effectively. These organizations play a crucial role in delivering medical care across the state, and reaching them for healthcare marketing requires precise data, personalized engagement, and a value-driven strategy.

Ampliz Healthcare Sales Intelligence serves as a powerful tool in this endeavor, offering extensive databases, real-time analytics, and advanced filtering options to identify and target physician groups efficiently. By leveraging Ampliz, healthcare marketers can streamline their outreach, craft personalized campaigns, and foster meaningful connections with key decision-makers.

FAQ (Frequently Asked Questions)

1. What are the largest physician groups in Massachusetts?

The largest physician groups in Massachusetts include major organizations such as Massachusetts General Hospital Physicians, Lahey Health Physicians, Brigham and Women’s Hospital Physicians, and others — ranked based on metrics like number of affiliated physicians. These groups deliver broad medical services and represent key targets for healthcare marketing outreach.

2. Why should healthcare marketers focus on physician groups in Massachusetts?

Massachusetts is home to some of the most influential and high-volume physician groups in the U.S. Targeting these organizations helps marketers connect with decision-makers in established practices, improve lead quality, and increase campaign ROI — particularly for B2B healthcare solutions, medical devices, and clinical offerings.

3. How can I use Ampliz to find physician groups in Massachusetts?

Ampliz Healthcare Sales Intelligence provides extensive physician group contact data, advanced filters (location, specialty, group size, Medicare charges), and real-time analytics. These features make it easier to identify, segment, and reach relevant physician groups for targeted campaigns.

4. What types of contact data can I access with Ampliz?

With Ampliz, you can access verified details such as physician names, specialties, practice affiliations, business emails, phone numbers, and more — helping you create accurate lists for outreach and nurture campaigns.

5. Can I filter physician groups by specialty or size?

Yes, Ampliz offers filters that let you segment physician groups by specialty (e.g., internal medicine, diagnostics, pediatrics), number of physicians, geographic location within Massachusetts, and other criteria that matter for precise targeting.

6. What’s the best way to engage large physician groups?

Effective strategies include personalized outreach using targeted messaging, multi-channel contact methods (email, phone, social platforms), educational content sharing (webinars, case studies), and leveraging data analytics to refine engagement timing and approach.

7. How does targeting physician groups improve my marketing ROI?

Focusing on larger physician groups with data-driven outreach increases the likelihood of engagement from high-value prospects. You can optimize messaging, reduce wasted touches, and build long-term relationships with organizations that have broader clinical influence.

8. Are the physician group lists regularly updated?

Yes, Ampliz maintains and updates its database to ensure contacts and firmographic data remain accurate and compliant, helping marketers avoid outdated information and improve outreach success.