List of Physician Groups by Specialties in the US

Last updated on July 20th, 2026

Building a “good enough” list of Physician Groups by Specialties in the US sounds simple until you actually try to target a market. When you’re building a call list for Dallas, Fort Worth, specialty labels alone won’t save you. Specialty-first segmentation beats generic “provider” targeting every time, because it forces your messaging, buyers, and workflows to match how care is actually delivered.

A quick heads-up on what “physician group” means (so your list stays useful)

A physician group is the business entity that employs or contracts clinicians and runs the operations behind the care. That can be a classic private practice, a hospital-employed medical group, an academic faculty practice plan, an FQHC-style clinic organization, or a private equity-backed platform with a management services organization (MSO) behind the scenes.

Here’s the thing: the same specialty can show up in every one of those models. “Cardiology group” might mean an independent practice with office imaging and hospital privileges, or it might mean cardiologists employed by a health system service line with centralized scheduling and standardized protocols. If your targeting list ignores that, outreach gets weird fast.

How to use Physician Groups by Specialties for GTM targeting

Start by swapping “specialty” from a label into a strategy. Segment messaging by specialty pain points, then match your buyer to the group structure. In an independent practice, the practical buyer is often the practice administrator or operations leader. In a hospital-owned group, budget and priorities tend to sit with service line leadership, finance, and system IT, even when a physician champion is excited.

Use referral paths as your shortcut. Cardiology, orthopedics, GI, and oncology tend to behave like referral machines with a few predictable entry points. Map who feeds the group (PCP, urgent care, ED, employer clinics), then map who the group depends on (imaging, anesthesia, infusion, ASC).

Finally, sanity-check specialty concentration by region before you over-invest in a metro. The Ampliz is a quick way to validate “are there enough of this specialty here?” and “is density unusually high or low?” before building a territory plan.

List of Physician Groups Specialties in US to Target

1. Primary Care (Family Medicine, Internal Medicine, Pediatrics)

Primary care groups are the front door, and the business pressure is constant: access, panel growth, risk adjustment, care management, and staffing. Expect heavy focus on appointment availability, chronic disease workflows, and documentation that supports quality programs and performance-based reimbursement.

Buying triggers are usually practical, not shiny. A sudden spike in new patient wait times, a payer contract change, or a shortage of MAs can move faster than any long-term transformation pitch.

Common group structures you’ll run into

Single-site practices still exist, but you’ll see plenty of regional multi-clinic groups, MSO-supported networks, and health system medical groups. Ownership patterns keep shifting, with fewer physicians in independent private practice over time and more in hospital-owned or employed arrangements.

Messaging that tends to land

Go straight at throughput and closing gaps: prevention outreach, chronic care workflows, coding and documentation support, and scheduling fixes that reduce no-shows. If you can tie your value to “more patients seen without burning out the clinic,” you get attention.

2. Cardiology & Vascular (Cardiology, Interventional, EP, Vascular Medicine)

Cardiology is a split-brain specialty: clinic visits and longitudinal disease management on one side, high-stakes procedures and imaging on the other. That mix creates operational friction, especially around prior auth, imaging throughput, cath lab coordination, and device clinic follow-ups.

Also, referral dynamics are everything. A cardiology group can look “small” on paper but control a huge downstream funnel for imaging, inpatient admissions, and procedures.

Where cardiology groups “live” operationally

Expect outpatient clinics plus hospital privileges, often tied tightly to a health system service line and sometimes an ASC growth plan. Even in private practice, hospital relationships can dictate scheduling, coverage, and access to procedure time.

What to segment by inside cardiology

General cardiology, interventional, electrophysiology, and heart failure behave like different businesses. EP cares about device workflows and remote monitoring operations. Interventional cares about cath lab coordination and inpatient consult flow. Heart failure cares about care management, infusion, and post-discharge follow-up.

3. Orthopedics & Sports Medicine (Ortho Surgery, Spine, PT-aligned networks)

Orthopedics is high-volume MSK care with strong ASC gravity and tight alignment with PT, OT, and imaging. The trick is that “ortho group” can mean sports medicine, joint replacement, spine, or trauma, and your growth levers change completely depending on the mix.

Ortho is also one of the specialties where private practice remains common relative to other fields, according to the Ampliz, which matters when you’re deciding how centralized procurement, IT, and marketing are likely to be.

Ortho group sub-lines that change your pitch

Joints care about bundled payments and outcomes tracking. Spine cares about imaging, surgical scheduling, and complex prior auth. Sports medicine cares about fast access and community referral capture (schools, employers, urgent care). Trauma can be dominated by hospital coverage contracts.

Operational themes

Scheduling and imaging integration show up everywhere, then implant and vendor management, outcomes tracking, and bundled payment readiness. If you sell staffing, the pressure point is often surgical techs, MAs, and clinic flow roles that keep surgeons productive.

4. OB/GYN & Women’s Health (OB/GYN, MFM, Reproductive Endocrinology)

Women’s health blends clinic care (OB/GYN Physician Groups) with labor and delivery coverage, and that coverage reality shapes everything from staffing to physician satisfaction. Expansion is common: multi-site “women’s health” groups, maternal-fetal medicine partnerships, and fertility referral relationships.

The practical constraint is call coverage. If the schedule breaks, growth plans pause.

Two common models: OB-heavy vs GYN-heavy

OB-heavy groups live and die by hospital contracts, call schedules, and postpartum care coordination. GYN-heavy groups skew toward elective procedures, clinic efficiency, and patient access, with fewer overnight coverage demands.

High-intent triggers

New hospital coverage contract, adding midwives or APPs, opening a new clinic, or launching a women’s imaging partnership. Those moments usually unlock budget, because leadership can feel the operational risk.

5. Dermatology (Medical, Surgical, Mohs, Cosmetic)

Derm scales well: multi-site clinics, high demand, and a mix of medical visits and procedures. You’ll also run into more platform behavior here, including PE-backed rollups, especially in fast-growing markets.

Segmentation by visit type changes everything. Medical derm wants access and throughput. Cosmetic derm wants patient acquisition, retention, and financing-friendly experiences.

Derm group segmentation that matters

Mohs-heavy groups care about procedure scheduling, pathology coordination, and surgical documentation. General derm cares about new patient access and rebooking systems. Cosmetic-forward groups care about conversion, packages, and high-touch follow-up.

Practical GTM angles

Patient access, referral capture, photo documentation, compliance, call center performance, and clinic utilization. If you can fix “phones unanswered at 2:15 pm,” you can often fix revenue leakage.

6. Gastroenterology (GI, Hepatology, Endoscopy/ASC-centered groups)

GI is endoscopy-driven, and many groups co-own or partner with ASCs. The catch is that ASC operations can matter as much as clinic workflows, sometimes more. Turnover time, scheduling, supply chain, and anesthesia relationships can be the real bottlenecks.

GI “group” often includes the ASC business

Separate legal entities are common, with shared leadership and shared KPIs. If outreach only targets the clinic manager, you can miss the decision center that controls procedure volume.

What to personalize by

IBD programs, liver and hepatology focus, screening colonoscopy growth, and anesthesia partnership structure. Even a small shift in screening volumes can create staffing and scheduling strain.

Read: Gastroenterology Physician Groups in US

7. Ophthalmology & Optometry-Aligned Practices (Ophthalmology, Retina, Glaucoma)

Ophthalmology Physician Groups is a procedure-heavy specialty with clear subspecialty lanes: cataracts, retina injections, glaucoma management. Many practices integrate optometry to improve access and keep referrals in-house.

Private practice is especially common in this specialty, with ophthalmology leading among surveyed specialties. That often means local decision-making, faster vendor swaps, and more variability in tech stack.

Subspecialties that change budgets and buyers

Retina tends to be imaging-intensive with frequent injection visits and tight schedule cadence. Cataract-heavy comprehensive practices care about surgical throughput and pre-op testing. Glaucoma can be long-cycle, with ongoing monitoring and adherence challenges.

Common operational needs

Imaging workflows, surgery center coordination, recall systems, and patient financing for elective services. Missed recalls are a silent revenue killer here.

8. Behavioral Health (Psychiatry, Addiction Medicine, Integrated BH)

Behavioral health groups show up as stand-alone outpatient practices, addiction treatment networks, and integrated behavioral health embedded in primary care. The operational reality is access constraints, complicated payer mix, and care coordination that often spans outside the four walls.

Two buyer paths to plan for

Stand-alone behavioral health groups tend to buy for intake speed, telehealth operations, and staffing stability. Embedded BH programs inside medical groups often buy through primary care leadership, population health, and sometimes system IT.

Messaging that works

Intake speed, outcomes documentation, collaboration with PCPs, telehealth workflow, and clinician recruiting. “Reduce time-to-first-appointment” beats vague promises every time.

9. Emergency Medicine & Hospital-Based Groups (EM, Hospital Medicine, Intensivists)

Emergency Medicine Physician groups behave differently because the hospital contract is the product. Operations are shift-based, credentialing-heavy, and KPI-driven, with performance expectations tied to throughput, quality metrics, and coverage reliability.

Hospitalists and intensivists often operate like groups even when employed, because scheduling, staffing models, and service expectations create a group-level buying motion.

How these groups differ from clinic-based specialties

Coverage requirements and credentialing timelines set the pace. A brilliant message that ignores contracting cycles or medical staff office lead times goes nowhere.

Practical segmentation

Community hospital versus academic center, trauma coverage, nocturnist coverage, and ICU staffing model. Even a small change in ED volume can ripple into staffing and burnout.

10. Anesthesiology & Pain (Anesthesia groups, Interventional Pain)

Anesthesiology Physician Groups is the plumbing behind OR and ASC growth. If surgical volume changes, anesthesia staffing and scheduling break first, which is why anesthesia leadership cares deeply about coverage models, recruitment, and contract terms.

Pain management is adjacent but different: outpatient clinics, procedures, imaging, and a referral-driven patient journey.

Anesthesia: the “plumbing” behind OR/ASC growth

Target growth signals like new surgeons joining, new OR rooms, or ASC expansions. Those moves create immediate anesthesia demand, and staffing conversations get real fast.

Pain management: adjacent, but not the same sale

Pain management physician groups care about referral capture, procedure room utilization, imaging coordination, and patient adherence. The buyer can also skew more toward clinic operations than hospital contracting.

11. Radiology (Diagnostic, Interventional, Teleradiology)

Radiology Physician groups often run on contracts and coverage: hospitals, outpatient imaging centers, and hybrid models that blend on-site reads with teleradiology. Workflows are dominated by turnaround times, subspecialty coverage, modality mix, and quality assurance.

PACS and RIS matter here (picture archiving and communication system, and radiology information system). If your solution does not fit that ecosystem, adoption stalls.

What to segment by in radiology

Hospital-based contract groups versus outpatient imaging centers, plus subspecialty coverage needs like neuro, MSK, and breast imaging. The buying motion can look like operations and medical leadership jointly, not just IT.

Where your value typically lands

Workflow efficiency, QA, reporting consistency, and clean integration with existing systems. Radiology lives on “less friction per study.”

12. Oncology (Medical Oncology, Hematology, Radiation Oncology)

Oncology is a care pathway, not a department. Infusion operations, prior auth, high-touch patient support, and coordination across specialties create constant operational load.

Community oncology physician groups can move quickly, but hospital-owned cancer centers may have more complex governance. Either way, logistics drive experience.

Oncology group models you’ll see

Community oncology networks, hospital-owned cancer centers, and academic programs. Investor interest and consolidation are common in this space, and “group” can include a broader platform footprint.

Operational themes worth calling out

Infusion scheduling, pathway adherence, prior auth, clinical trials operations, and nurse navigation. If you sell services, reducing prior auth delays can be more valuable than adding another dashboard.

13. Surgery Specialties (General Surgery, Colorectal, Thoracic, Plastic)

Surgical specialties get missed in lists because the groups can look smaller. But influence can be outsized through OR time, referrals, and ASC economics. Growth often hinges on block time, clinic access, and perioperative coordination.

When to split “surgery” into separate segments

Colorectal referrals skew heavily from GI and primary care, with hospital-based complexity. Thoracic leans into cancer programs and cardiopulmonary pathways. Plastic can be payer-mix split, reconstructive versus cash-pay aesthetic, which changes marketing and financing needs.

Common GTM hooks

ASC expansion, block optimization, perioperative pathways, and patient financing where relevant. Surgical groups respond to operational fixes that protect OR productivity.

14. Neurology & Neurosurgery (Neuro, Headache, Stroke, Spine surgery)

Neurology blends clinic care with hospital stroke call and imaging-heavy workflows. Neurosurgery adds OR time, inpatient coordination, and long-cycle care plans. Multidisciplinary overlap is common: neuro plus rehab, pain, and spine.

Neurology segmentation that matters

Headache and migraine clinics are access-driven with infusion or procedure components. Epilepsy and movement disorders can be specialty-center oriented. MS care often includes infusion clinic logistics. Stroke programs tie directly to hospital quality and call coverage.

Practical needs

Care coordination, prior auth, infusion clinic scheduling, and imaging reporting workflows. “Where did the referral go?” is a daily frustration in neuro.

15. Urology (General Urology, Oncology, Men’s health)

Urology physician groups are high-demand, clinic-plus-procedure, and referral-heavy. Growth shows up through in-office procedures, imaging and lab coordination, and patient acquisition for elective services like men’s health.

It’s a strong specialty to end on because it combines operational complexity with clear revenue levers.

Urology sub-lines to personalize for

Stone clinics, BPH programs, urologic oncology, fertility, and men’s health. Each has different referral sources, scheduling cadence, and patient expectations.

What tends to break first as groups grow

Scheduling access, referral capture, procedure room utilization, and staffing for MA and tech roles. Fix those four, and the rest of the operation tends to calm down.

Other List of Physician Groups By Specialties in US

Data Source: Ampliz Healthcare Intelligence, Accessed on July 16 2026.

Quick “Where to Confirm Counts and Concentration” Sources (so your list stays current)

Use the Ampliz Healthcare Intelligence dashboard to confirm physician counts, density, and location patterns by specialty.

A simple next step to try today

Pick one specialty from this list, pick one metro area, and map 20 target groups by structure (independent vs system-owned vs platform) before writing any outreach. It’s like organizing the kitchen drawer before cooking, everything runs smoother once the basics are in the right place. If you want to speed up list-building and enrichment, try the Ampliz free trail to pull cleaner company and contact data without turning your week into spreadsheet cleanup.

Frequently Asked Questions

What counts as a “physician group” for GTM targeting?

A physician group is the operating business behind clinicians, including private practices, hospital-employed medical groups, faculty practice plans, and PE-backed platforms. For targeting, treat it as the budget and workflow container, not just a collection of providers.

How should segmentation change for independent vs hospital-owned groups?

Independent groups often buy through an administrator or managing partner and move faster. Hospital-owned groups usually require alignment with service line leadership, finance, and IT governance, so timelines and stakeholder maps get bigger.

Which specialties are most likely to be private practice?

Ophthalmology and orthopedics tend to have higher private practice share than many other specialties, based on AMA benchmarking. That usually means more local decision-making and more variation in tools and processes.

How do you keep a list of physician groups by specialties current?

Use workforce and benchmarking sources to validate supply trends, then refresh your account list quarterly using a consistent taxonomy (specialty, subspecialty, ownership, and geography). The goal is fewer “wrong door” calls, not perfect data.

What’s the biggest mistake when building physician group target lists?

Treating “specialty” as the only filter. If ownership model, site of care (clinic vs hospital vs ASC), and referral dependencies are not captured, outreach feels generic and response rates drop.

Subbu

V. Subramanyam
Head 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