Largest primary care groups in Maryland
- Groups
- 1,051
- Nurse Practitioner groups
- 456
- Internal Medicine groups
- 407
- Nurse practitioner specialists
- 1,040
- Internal medicine specialists
- 4,302
There are 1,051 primary care groups in Maryland with a Medicare PAC ID: 456 nurse practitioner, 407 internal medicine, 143 family medicine, 28 physician assistant and 15 general practice. CVS MinuteClinic is the largest nurse practitioner group, with 59 nurse practitioner specialists, and Johns Hopkins University the largest internal medicine group, with 787 internal medicine specialists.
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Johns Hopkins University is the largest primary care group in Maryland, with 2,516 physicians
Ranked by physicians with a Maryland address linked to each group. Mid-Atlantic Permanente Medical Group is second with 1,404, and Johns Hopkins Department of Orthopaedic Surgery third with 860. 28 Maryland groups have 100 or more physicians.
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Showing 1 to 10 of 1,051 primary care groups in Maryland
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
CVS MinuteClinic is the largest nurse practitioner group in Maryland, with 59 nurse practitioner specialists
Ranked by nurse practitioner specialists with a Maryland address linked to each group whose main sub-specialty is nurse practitioner. Resonance Behavioral Health Services is second with 23, and Kinetic Medical Group third with 14.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Johns Hopkins University is the largest internal medicine group in Maryland, with 787 internal medicine specialists
Ranked by internal medicine specialists with a Maryland address linked to each group whose main sub-specialty is internal medicine. Mid-Atlantic Permanente Medical Group is second with 372, and Johns Hopkins Department of Orthopaedic Surgery third with 337.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Amber Hill Therapy Centers is the largest family medicine group in Maryland, with 48 family physicians
Ranked by family physicians with a Maryland address linked to each group whose main sub-specialty is family medicine. University of Maryland Family & Community Medicine at Paca Street is second with 40, and University of Maryland Faculty Physicians Immediate Care third with 32.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
WiseCare Urgent Care is the largest physician assistant group in Maryland, with 17 physician assistant specialists
Ranked by physician assistant specialists with a Maryland address linked to each group whose main sub-specialty is physician assistant. MedStar Medical Group is second with 12, and West Ocean City Injury & Illness Center third with 7.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Med-Surg Care and Silverstein Medical have the most general practice specialists of any Maryland general practice group, with 2 each
Ranked by general practice specialists with a Maryland address linked to each group whose main sub-specialty is general practice. ExpressCare Urgent Care Centers is third with 2.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Johns Hopkins Health System has the most physicians in Maryland primary care groups, with 1,459 across 6 groups
Dmand AI maps every medical group to its parent organization, up to the health system or platform at the top. 40 parent organizations have two or more Maryland primary care groups. Among health systems, University of Maryland Medical System has the most groups, 20. Each clinician counts once per parent organization.
See every medical group, site and clinician under Johns Hopkins Health System
Org Hierarchy Explorer maps every group, site of care and clinician under the parent, with the leaders at each group.
Source: Dmand AI Org Hierarchy Data
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Dmand AI maps the owners, administrators and physician leaders at each of the 1,051 Maryland primary care groups, with the parent organization above each one, and finds validated work emails and mobile numbers.
69% of Maryland primary care groups are independent, with no larger parent organization
A group counts as independent when no health system, platform or other organization sits above it in the org hierarchy. Every other group belongs to a larger organization.
Maryland primary care groups by ownership
- Independent722
- Health system or hospital106
- Platform or corporate owner79
- Community or government33
- Other organization111
Sites of care beyond their own offices
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Dmand AI maps each group to the health system, physician platform or management company above it, so you can sell to the owner, not one site.
Source: Dmand AI Org Hierarchy Data
128 Maryland primary care groups practice at a hospital site, and 93 at a behavioral health facility
Sites of care linked to each group in the org hierarchy, beyond its own offices. A group can practice at several kinds of site.
Maryland primary care groups by site of care
- Hospitals128
- Behavioral health facilities93
- Skilled nursing facilities71
- FQHCs29
- Ambulatory surgery centers27
- Therapy and rehab centers19
- Hospices9
- Dialysis centers6
- Home health agencies6
- Rural health clinics2
Clinicians in Maryland primary care groups
Sources: Dmand AI Practice Data and Dmand AI Org Hierarchy Data
Baltimore has the most primary care groups in Maryland, with 120
More Maryland cities with primary care groups
- Glen Burnie29
- Bel Air28
- Salisbury26
- Bowie25
- Catonsville22
- Germantown21
- Hagerstown21
- Annapolis20
- Westminster18
- Bethesda17
- Owings Mills17
- Waldorf17
- Gaithersburg16
- Laurel16
- Cumberland15
Source: Doctors and Clinicians National Downloadable File (CMS)
Each Maryland primary care group profile shows the parent, sites, clinicians and identifiers
- Clinicians and specialtiesA count by specialty and a sample of the group's cliniciansOn every profile
- Practice locationsMain site and a sample of practice locations, with a count of the restOn every profile
- Medicare Part B paymentsMedicare payments to the group, from CMSOn every profile
- Group NPI and Medicare PAC IDIdentifiers for matching records across sourcesOn every profile
- Parent organizationThe health system, platform or owner above the groupOn every profile
- Every clinician and siteThe full roster and every practice locationWith a free account
- Leader and clinician contactsWork emails and mobile numbers, found on request and then validatedWith a free account
- EHR used by the group's cliniciansThe EHR in use at the group's sitesWith a free account
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Sources: Doctors and Clinicians National Downloadable File (CMS), Medicare Physician & Other Practitioners (CMS) and Dmand AI Org Hierarchy Data
Sources for the Maryland primary care group list
| Data on this page | Source |
|---|---|
| Medical groups, specialties and sites | Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Professional Profile Data |
| Parent organizations and independence | Dmand AI Org Hierarchy Data |
| Physicians and HCPs | Dmand AI Affiliation Data |
| Group NPI and PAC ID | NPPES NPI Registry (CMS) and Doctors and Clinicians National Downloadable File (CMS) |
Data last refreshed October 2026Report an inaccuracyRemove my information
Groups whose main specialty is primary care and that have a Medicare PAC ID.
FAQ
Frequently asked questions about primary care groups in Maryland
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is the largest nurse practitioner group in Maryland?
CVS MinuteClinic, based in Potomac, with 59 nurse practitioner specialists and 66 HCPs. Resonance Behavioral Health Services is second with 23.
What is the largest internal medicine group in Maryland?
Johns Hopkins University, based in Baltimore, with 787 internal medicine specialists and 3,680 HCPs. Mid-Atlantic Permanente Medical Group is second with 372.
How many primary care groups are in Maryland?
There are 1,051 primary care groups in Maryland with a Medicare PAC ID: 456 nurse practitioner, 407 internal medicine, 143 family medicine, 28 physician assistant and 15 general practice. Between them they have 1,040 nurse practitioner specialists, 4,302 internal medicine specialists, 378 family physicians, 84 physician assistant specialists and 6 general practice specialists.
Which companies own the most primary care groups?
By physicians, Johns Hopkins Health System, with 1,459 across 6 groups, followed by University of Maryland Medical System with 1,428 and LifeBridge Health with 726.
How many Maryland primary care groups are independent?
722, or 69%, have no larger parent organization in the Dmand AI org hierarchy. 106 belong to a health system or hospital and 79 to a physician platform or corporate owner.
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