Internists in Fullerton, CA
- Internists
- 64
- Linked to a hospital or group
- 54
- Hospitals with an internist
- 18
- Medical groups with an internist
- 24
- Practice at a hospital
- 44
There are 64 internists in Fullerton. St. Jude Heritage Medical Group has the most, 37, and Providence St. Jude Medical Center has the most affiliated internists, 36. 26% finished medical school 30 or more years ago.
Find work emails and mobile numbers for all 64 Fullerton internists
Validated work emails and mobile numbers for Fullerton internists, found through healthcare waterfall enrichment, with a free Dmand AI account.
Fullerton internists, listed A to Z by last name
Each internist on the list has internal medicine as their primary specialty and a Fullerton 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 10 of 55 Fullerton internists
The list shows the 55 internists with a public profile. The other 9 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 47 of 64 Fullerton 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.
St. Jude Heritage Medical Group has the most internists in Fullerton, with 37
Southern California Permanente Medical Group is second with 5, and Sound Physicians third with 2. Counts are internists with a California address linked to each group.
Sources: Dmand AI Affiliation Data and Dmand AI Org Hierarchy Data
Providence St. Jude Medical Center has the most affiliated internists in Fullerton, with 36
UCI Health - Orange is second with 6, and Hoag Hospital Newport Beach third with 3. Fullerton internists are affiliated with 18 hospitals in all.
See every hospital and group for each Fullerton 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 Fullerton internists practice at a hospital: 44 of the 53 with a mapped site
25 also practice at a medical group site, and 13 at home health agencies. An internist can practice at several kinds of site, so the shares overlap.
Fullerton internists by site of care
- Hospitals44
- Medical group practices25
- Home health agencies13
- Physician offices10
- Skilled nursing facilities6
Sources: Dmand AI Affiliation Data and Dmand AI Practice Data
26% of Fullerton internists finished medical school 30 or more years ago
13 of the 50 Fullerton internists with a graduation year on file. 8 graduated in the last 10 years.
Physicians by years since medical school
- Under 10 years ago8
- 10 to 19 years ago9
- 20 to 29 years ago20
- 30 to 39 years ago9
- 40 or more years ago4
Source: Dmand AI Professional Profile Data
Every Fullerton 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 Fullerton 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 Fullerton practice address.
FAQ
Frequently asked questions about internists in Fullerton
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 Fullerton?
64 internists have an active NPI, a Fullerton practice address and internal medicine (taxonomy code 207R00000X) as their primary specialty. 54 of them are linked to a hospital or medical group.
Which Fullerton medical groups have the most internists?
St. Jude Heritage Medical Group, with 37, followed by Southern California Permanente Medical Group with 5 and Sound Physicians with 2.
Which Fullerton hospitals have the most internists?
Providence St. Jude Medical Center, with 36 affiliated internists, followed by UCI Health - Orange with 6 and Hoag Hospital Newport Beach with 3.
What share of Fullerton internists practice at a hospital?
44 of the 53 Fullerton internists with a mapped site of care, or 83%, 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.
How can I contact internists in Fullerton?
Dmand AI finds validated work emails, mobile numbers and practice phone numbers for internists in Fullerton 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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