Internists in Maryland
- Internists
- 3,924
- Linked to a hospital or group
- 3,113
- Hospitals with an internist
- 51
- Medical groups with an internist
- 418
- Cities
- 145
There are 3,924 internists in Maryland. Johns Hopkins University has the most, 288, and The Johns Hopkins Hospital has the most affiliated internists, 418. Baltimore is home to 1,073, and 37% finished medical school 30 or more years ago.
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Validated work emails and mobile numbers for Maryland internists, found through healthcare waterfall enrichment, with a free Dmand AI account.
Maryland internists, listed A to Z by last name
Each internist on the list has internal medicine as their primary specialty and a Maryland practice address. The list shows the NPI and city, and how many hospitals and medical groups each one practices with. A free account names every hospital and group, with validated contacts.
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Sort and filter all 3,924 Maryland internists by city, hospital, medical group, the EHR they use and Medicare volume in Dmand AI.
Showing 1 to 10 of 3,320 Maryland internists
The list shows the 3,320 internists with a public profile. The other 604 are counted in the total and searchable with a free account.
Sources: NPPES NPI Registry (CMS) and Dmand AI Affiliation Data
For health IT teams
Dmand AI has the EHR for 3,172 of 3,924 Maryland internists, at their hospital and their practice. Filter by Epic, Oracle Health, MEDITECH, athenahealth and more, then reach them with validated work emails and mobile numbers.
Johns Hopkins University has the most internists in Maryland, with 288
Mid-Atlantic Permanente Medical Group is second with 272, and Johns Hopkins Community Physicians third with 218. Counts are internists with a Maryland address linked to each group.
Sources: Dmand AI Affiliation Data and Dmand AI Org Hierarchy Data
The Johns Hopkins Hospital has the most affiliated internists in Maryland, with 418
Johns Hopkins Bayview Medical Center in Baltimore is second with 246, and Luminis Health Anne Arundel Medical Center third with 140. Maryland internists are affiliated with 51 hospitals in all.
See every hospital and group for each Maryland internist
Each public profile names one place an internist practices. A free account shows all of them, with the employer, the EHR and validated contacts.
Source: Dmand AI Affiliation Data
Baltimore has the most internists in Maryland, with 1,073
More Maryland cities with internists
- Gaithersburg119
- Columbia102
- Frederick97
- Glen Burnie90
- Salisbury87
- Rosedale78
- Bel Air58
- Upper Marlboro57
- Catonsville46
Internists practice in 145 Maryland cities. Every city with 10 or more has its own page.
Source: NPPES NPI Registry (CMS)
Most Maryland internists practice at a hospital: 2,135 of the 3,038 with a mapped site
1,541 also practice at a medical group site, and 824 at home health agencies. An internist can practice at several kinds of site, so the shares overlap.
Maryland internists by site of care
- Hospitals2,135
- Medical group practices1,541
- Home health agencies824
- Physician offices357
- Ambulatory surgery centers275
Sources: Dmand AI Affiliation Data and Dmand AI Practice Data
37% of Maryland internists finished medical school 30 or more years ago
1,043 of the 2,825 Maryland internists with a graduation year on file. 451 graduated in the last 10 years, fewer than graduated 40 or more years ago.
Physicians by years since medical school
- Under 10 years ago451
- 10 to 19 years ago697
- 20 to 29 years ago634
- 30 to 39 years ago565
- 40 or more years ago478
Source: Dmand AI Professional Profile Data
Every Maryland internist profile shows current hospitals and groups, Medicare activity and NPI details
- Primary practiceThe main place they practice, with its type and cityOn every profile
- Every site of careEach hospital, clinic and group where they practice nowWith a free account
- EmployerThe organization they work for, when one is on fileWith a free account
- Medicare servicesServices and procedure codes billed to Medicare, from CMSOn every profile
- Medicare Part D prescribingClaims and drug costs from Part D, from CMSOn every profile
- Industry paymentsPayments from drug and device makers, from CMS Open PaymentsOn every profile
- Publications and clinical trialsResearch papers and trials linked to the NPI, when on fileOn every profile
- Licenses and graduation yearState license numbers and medical school graduation yearOn every profile
- NPI detailsNPI, enumeration date, primary taxonomy and practice addressOn every profile
- Work email and mobile numberFound on request through healthcare waterfall enrichment, then validatedWith a free account
- EHR in useThe EHR at each site where they practiceWith a free account
- Colleagues at each siteThe clinicians they work with at each hospital and groupWith a free account
Free account: 30 days free, self-serve, no credit card.
Sources: NPPES NPI Registry (CMS), Medicare Physician & Other Practitioners (CMS), Open Payments (CMS) and Dmand AI Affiliation Data
Sources for the Maryland internist directory
| Data on this page | Source |
|---|---|
| HCPs, types and specialties | NPPES NPI Registry (CMS) and Dmand AI Professional Profile Data |
| Sites of care, hospitals and medical groups | Dmand AI Affiliation Data |
| Medical school graduation year | Dmand AI Professional Profile Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
Internists are HCPs whose primary specialty is internal medicine (taxonomy code 207R00000X), with an active NPI and a Maryland practice address.
FAQ
Frequently asked questions about internists in Maryland
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
How many internists are in Maryland?
3,924 internists have an active NPI, a Maryland practice address and internal medicine (taxonomy code 207R00000X) as their primary specialty. 3,113 of them are linked to a hospital or medical group.
Which Maryland medical groups have the most internists?
Johns Hopkins University, with 288, followed by Mid-Atlantic Permanente Medical Group with 272 and Johns Hopkins Community Physicians with 218.
Which Maryland hospitals have the most internists?
The Johns Hopkins Hospital, with 418 affiliated internists, followed by Johns Hopkins Bayview Medical Center with 246 and Luminis Health Anne Arundel Medical Center with 140.
Which Maryland cities have the most internists?
Baltimore, with 1,073, followed by Bethesda (229) and Towson (180). Internists practice in 145 Maryland cities in all.
How many Maryland internists finished medical school 30 or more years ago?
1,043 of the 2,825 with a graduation year on file, or 37%. 451 graduated in the last 10 years.
What is the taxonomy code for internal medicine?
207R00000X is the NPPES taxonomy code for internal medicine. Sub-specialties with their own code are counted on their own lists.
How can I contact internists in Maryland?
Dmand AI finds validated work emails, mobile numbers and practice phone numbers for internists in Maryland through healthcare waterfall enrichment, matched to the site where each one practices now. They are available with a free Dmand AI account: 30 days free, self-serve, no credit card.
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