Internists in Lancaster, PA
- Internists
- 121
- Linked to a hospital or group
- 109
- Hospitals with an internist
- 18
- Medical groups with an internist
- 39
- Practice at a hospital
- 100
There are 121 internists in Lancaster. Penn Medicine Lancaster General Health has the most, 49, and Lancaster General Hospital has the most affiliated internists, 80. 23% finished medical school 30 or more years ago.
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Validated work emails and mobile numbers for Lancaster internists, found through healthcare waterfall enrichment, with a free Dmand AI account.
Lancaster internists, listed A to Z by last name
Each internist on the list has internal medicine as their primary specialty and a Lancaster practice address. The list shows the NPI, 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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Showing 1 to 50 of 110 Lancaster internists
The list shows the 110 internists with a public profile. The other 11 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 113 of 121 Lancaster 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.
Penn Medicine Lancaster General Health has the most internists in Lancaster, with 49
Penn State Health Medical Group is second with 27, and Penn Medicine Lancaster General Health Physicians, Behavioral Health third with 21. Counts are internists with a Pennsylvania address linked to each group.
Sources: Dmand AI Affiliation Data and Dmand AI Org Hierarchy Data
Lancaster General Hospital has the most affiliated internists in Lancaster, with 80
Penn State Health Milton S. Hershey Medical Center is second with 26, and Penn State Health Lancaster Medical Center third with 26. Lancaster internists are affiliated with 18 hospitals in all.
See every hospital and group for each Lancaster 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
Most Lancaster internists practice at a hospital: 100 of the 107 with a mapped site
44 also practice at a medical group site, and 20 at home health agencies. An internist can practice at several kinds of site, so the shares overlap.
Lancaster internists by site of care
- Hospitals100
- Medical group practices44
- Home health agencies20
- Ambulatory surgery centers12
- Skilled nursing facilities9
Sources: Dmand AI Affiliation Data and Dmand AI Practice Data
23% of Lancaster internists finished medical school 30 or more years ago
23 of the 101 Lancaster internists with a graduation year on file. 23 graduated in the last 10 years.
Physicians by years since medical school
- Under 10 years ago23
- 10 to 19 years ago30
- 20 to 29 years ago25
- 30 to 39 years ago15
- 40 or more years ago8
Source: Dmand AI Professional Profile Data
Every Lancaster 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 Lancaster 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 Lancaster practice address.
FAQ
Frequently asked questions about internists in Lancaster
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 Lancaster?
121 internists have an active NPI, a Lancaster practice address and internal medicine (taxonomy code 207R00000X) as their primary specialty. 109 of them are linked to a hospital or medical group.
Which Lancaster medical groups have the most internists?
Penn Medicine Lancaster General Health, with 49, followed by Penn State Health Medical Group with 27 and Penn Medicine Lancaster General Health Physicians, Behavioral Health with 21.
Which Lancaster hospitals have the most internists?
Lancaster General Hospital, with 80 affiliated internists, followed by Penn State Health Milton S. Hershey Medical Center with 26 and Penn State Health Lancaster Medical Center with 26.
What share of Lancaster internists practice at a hospital?
100 of the 107 Lancaster internists with a mapped site of care, or 93%, have a current hospital affiliation.
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.
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