Internists in Walnut Creek, CA
- Internists
- 161
- Linked to a hospital or group
- 141
- Hospitals with an internist
- 35
- Medical groups with an internist
- 63
- Practice at a hospital
- 124
There are 161 internists in Walnut Creek. John Muir Medical Group has the most, 62, and John Muir Medical Center, Walnut Creek has the most affiliated internists, 75. 38% finished medical school 30 or more years ago.
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Walnut Creek internists, listed A to Z by last name
Each internist on the list has internal medicine as their primary specialty and a Walnut Creek 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 148 Walnut Creek internists
The list shows the 148 internists with a public profile. The other 13 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 154 of 161 Walnut Creek 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.
John Muir Medical Group has the most internists in Walnut Creek, with 62
The Permanente Medical Group, Inc. is second with 42, and John Muir Health third with 36. Counts are internists with a California address linked to each group.
Sources: Dmand AI Affiliation Data and Dmand AI Org Hierarchy Data
John Muir Medical Center, Walnut Creek has the most affiliated internists in Walnut Creek, with 75
Concord Medical Center is second with 51, and Walnut Creek Medical Center third with 39. Walnut Creek internists are affiliated with 35 hospitals in all.
See every hospital and group for each Walnut Creek 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 Walnut Creek internists practice at a hospital: 124 of the 140 with a mapped site
85 also practice at a medical group site, and 30 at home health agencies. An internist can practice at several kinds of site, so the shares overlap.
Walnut Creek internists by site of care
- Hospitals124
- Medical group practices85
- Home health agencies30
- Breast imaging centers14
- Physician offices12
Sources: Dmand AI Affiliation Data and Dmand AI Practice Data
38% of Walnut Creek internists finished medical school 30 or more years ago
50 of the 130 Walnut Creek internists with a graduation year on file. 12 graduated in the last 10 years, fewer than graduated 40 or more years ago.
Physicians by years since medical school
- Under 10 years ago12
- 10 to 19 years ago28
- 20 to 29 years ago40
- 30 to 39 years ago30
- 40 or more years ago20
Source: Dmand AI Professional Profile Data
Every Walnut Creek 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 Walnut Creek 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 Walnut Creek practice address.
FAQ
Frequently asked questions about internists in Walnut Creek
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 Walnut Creek?
161 internists have an active NPI, a Walnut Creek practice address and internal medicine (taxonomy code 207R00000X) as their primary specialty. 141 of them are linked to a hospital or medical group.
Which Walnut Creek medical groups have the most internists?
John Muir Medical Group, with 62, followed by The Permanente Medical Group, Inc. with 42 and John Muir Health with 36.
Which Walnut Creek hospitals have the most internists?
John Muir Medical Center, Walnut Creek, with 75 affiliated internists, followed by Concord Medical Center with 51 and Walnut Creek Medical Center with 39.
What share of Walnut Creek internists practice at a hospital?
124 of the 140 Walnut Creek internists with a mapped site of care, or 89%, 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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