Internists in Simi Valley, CA

  • Internal medicine
  • Simi Valley, California
Internists
19
Linked to a hospital or group
16
Hospitals with an internist
16
Medical groups with an internist
21
Practice at a hospital
15

There are 19 internists in Simi Valley. Vituity has the most, 5, and Adventist Health Simi Valley has the most affiliated internists, 15. 31% finished medical school 30 or more years ago.

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Simi Valley internists, listed A to Z by last name

Each internist on the list has internal medicine as their primary specialty and a Simi Valley 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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The list shows the 17 internists with a public profile. The other 2 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

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Dmand AI has the EHR for 17 of 19 Simi Valley 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.

Vituity has the most internists in Simi Valley, with 5

Sound Physicians is second with 3, and Inpatient Specialist of California PC 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

Adventist Health Simi Valley has the most affiliated internists in Simi Valley, with 15

Dignity Health - St. John's Regional Medical Center is second with 2, and Dignity Health - Northridge Hospital Medical Center third with 2. Simi Valley internists are affiliated with 16 hospitals in all.

Hospitals with the most internists in Simi Valley
#HospitalHealth systemInternists
1Adventist Health Simi ValleySimi ValleyAdventist Health15
2Dignity Health - St. John's Regional Medical CenterOxnardCommonSpirit Health2
3Dignity Health - Northridge Hospital Medical CenterNorthridgeCommonSpirit Health2
4Los Robles Regional Medical CenterThousand OaksHCA Healthcare2
5Santa Clara Valley Medical CenterSan JoseCounty of Santa Clara, CA1
6Antelope Valley Medical CenterLancasterAntelope Valley Healthcare District1
7Saint Agnes Medical CenterFresnoTrinity Health1
8Ventura County Medical CenterVenturaVentura County Health Care Agency1
9Adventist Health GlendaleGlendaleAdventist Health1
10Providence Saint John's Health CenterSanta MonicaProvidence1

Top 10 of 16 Simi Valley hospitals with an affiliated internist

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Each public profile names one place an internist practices. A free account shows all of them, with the employer, the EHR and validated contacts.

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Source: Dmand AI Affiliation Data

Most Simi Valley internists practice at a hospital: 15 of the 16 with a mapped site

6 also practice at a medical group site, and 5 at home health agencies. An internist can practice at several kinds of site, so the shares overlap.

Simi Valley internists by site of care

  1. Hospitals15
  2. Medical group practices6
  3. Home health agencies5
  4. Physician offices4

Sources: Dmand AI Affiliation Data and Dmand AI Practice Data

31% of Simi Valley internists finished medical school 30 or more years ago

4 of the 13 Simi Valley internists with a graduation year on file. 3 graduated in the last 10 years.

Physicians by years since medical school

  1. Under 10 years ago3
  2. 10 to 19 years ago2
  3. 20 to 29 years ago4
  4. 30 to 39 years ago2
  5. 40 or more years ago2

Source: Dmand AI Professional Profile Data

Every Simi Valley 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 Simi Valley internist directory

Sources for the data on this page
Data on this pageSource
HCPs, types and specialtiesNPPES NPI Registry (CMS) and Dmand AI Professional Profile Data
Sites of care, hospitals and medical groupsDmand AI Affiliation Data
Medical school graduation yearDmand 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 Simi Valley practice address.

FAQ

Frequently asked questions about internists in Simi Valley

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 Simi Valley?

19 internists have an active NPI, a Simi Valley practice address and internal medicine (taxonomy code 207R00000X) as their primary specialty. 16 of them are linked to a hospital or medical group.

Which Simi Valley medical groups have the most internists?

Vituity, with 5, followed by Sound Physicians with 3 and Inpatient Specialist of California PC with 2.

Which Simi Valley hospitals have the most internists?

Adventist Health Simi Valley, with 15 affiliated internists, followed by Dignity Health - St. John's Regional Medical Center with 2 and Dignity Health - Northridge Hospital Medical Center with 2.

What share of Simi Valley internists practice at a hospital?

15 of the 16 Simi Valley internists with a mapped site of care, or 94%, 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 Simi Valley?

Dmand AI finds validated work emails, mobile numbers and practice phone numbers for internists in Simi Valley 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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Find the right contacts among Simi Valley internists

Search 19 Simi Valley internists by hospital, medical group and the EHR they use, with validated work emails and mobile numbers.

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