Internists in Lancaster, CA
- Internists
- 96
- Linked to a hospital or group
- 88
- Hospitals with an internist
- 14
- Medical groups with an internist
- 37
- Practice at a hospital
- 52
There are 96 internists in Lancaster. Southern California Permanente Medical Group has the most, 39, and Antelope Valley Medical Center has the most affiliated internists, 30. 41% finished medical school 30 or more years ago.
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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 90 Lancaster internists
The list shows the 90 internists with a public profile. The other 6 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 76 of 96 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.
Southern California Permanente Medical Group has the most internists in Lancaster, with 39
Horizon Multicare Group is second with 11, and Bartz-Altadonna Community Health Center third with 11. Counts are internists with a California address linked to each group.
Sources: Dmand AI Affiliation Data and Dmand AI Org Hierarchy Data
Antelope Valley Medical Center has the most affiliated internists in Lancaster, with 30
Panorama City Medical Center is second with 16, and Palmdale Regional Medical Center third with 8. Lancaster internists are affiliated with 14 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: 52 of the 85 with a mapped site
36 also practice at a medical group site, and 15 at home health agencies. An internist can practice at several kinds of site, so the shares overlap.
Lancaster internists by site of care
- Hospitals52
- Medical group practices36
- Home health agencies15
- Urgent care centers12
- FQHCs10
Sources: Dmand AI Affiliation Data and Dmand AI Practice Data
41% of Lancaster internists finished medical school 30 or more years ago
33 of the 80 Lancaster internists with a graduation year on file. 11 graduated in the last 10 years, fewer than graduated 40 or more years ago.
Physicians by years since medical school
- Under 10 years ago11
- 10 to 19 years ago21
- 20 to 29 years ago15
- 30 to 39 years ago20
- 40 or more years ago13
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?
96 internists have an active NPI, a Lancaster practice address and internal medicine (taxonomy code 207R00000X) as their primary specialty. 88 of them are linked to a hospital or medical group.
Which Lancaster medical groups have the most internists?
Southern California Permanente Medical Group, with 39, followed by Horizon Multicare Group with 11 and Bartz-Altadonna Community Health Center with 11.
Which Lancaster hospitals have the most internists?
Antelope Valley Medical Center, with 30 affiliated internists, followed by Panorama City Medical Center with 16 and Palmdale Regional Medical Center with 8.
What share of Lancaster internists practice at a hospital?
52 of the 85 Lancaster internists with a mapped site of care, or 61%, 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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