Internists in Santa Maria, CA

  • Internal medicine
  • Santa Maria, California
Internists
42
Linked to a hospital or group
36
Hospitals with an internist
6
Medical groups with an internist
10
Practice at a hospital
28

There are 42 internists in Santa Maria. Central Coast Inpatient Consultants has the most, 11, and Dignity Health - Marian Regional Medical Center has the most affiliated internists, 27. 44% finished medical school 30 or more years ago.

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Santa Maria internists, listed A to Z by last name

Each internist on the list has internal medicine as their primary specialty and a Santa Maria 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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Sort and filter all 42 Santa Maria internists by hospital, medical group, the EHR they use and Medicare volume in Dmand AI.

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Santa Maria internists, A to Z
InternistHospitalsMedical groupsEmail and phone
Morningstar J. Anton, DONPI 15988715272 hospitals1 groupContacts
Mohammad Amjad Arain, MDNPI 16391671581 hospital1 groupContacts
Jimmy Mack Baker, MDNPI 1912054487-1 groupContacts
Nicandro Gerardo Castaneda, MDNPI 15785952452 hospitals2 groupsContacts
Kathleen ChakNPI 13567546592 hospitals3 groupsContacts
Ben Cooke, MDNPI 15285128033 hospitals1 groupContacts
Sam Densen, MDNPI 18811726661 hospital1 groupContacts
Yosef Diab, MDNPI 10539480263 hospitals2 groupsContacts
Mark Flavius Donaldson, MDNPI 1710923933-1 groupContacts
Philippe Duhaime, MDNPI 10436928662 hospitals1 groupContacts
Brian William Fields, DONPI 12455415803 hospitals2 groupsContacts
Robert Marcial Guerra, MDNPI 1518988062-1 groupContacts
Victor Manuel Guerrero, MDNPI 1972596963-1 groupContacts
Albert W. Hawkins, MDNPI 15886644783 hospitals-Contacts
Hidenori Mutsuo Ikuhara, MDNPI 15988897502 hospitals2 groupsContacts
Ramsharan KakaniNPI 14072076083 hospitals2 groupsContacts
Atipon Kangwanpornsiri, MDNPI 14878548162 hospitals1 groupContacts
Siri Atma Singh Khalsa, MDNPI 1073701785-1 groupContacts
Nancy Ellen Kitson, MDNPI 11745436642 hospitals2 groupsContacts
Cu Q. Nguyen, MDNPI 1669534236-1 groupContacts
Duc Van Nguyen, MDNPI 12553669282 hospitals1 groupContacts
Savitha Nukal, MDNPI 11846642372 hospitals2 groupsContacts
Ijeoma A. Ofiaeli, MDNPI 19321381792 hospitals1 groupContacts
Sowmya Oza, MDNPI 16393948362 hospitals3 groupsContacts
Paul E. Parker, MDNPI 15382403042 hospitals-Contacts
Rashiklal R. Patel, MDNPI 13563311852 hospitals1 groupContacts
Brandon M. Penn, DONPI 12959195042 hospitals2 groupsContacts
Peter F. Phelan, MDNPI 1548358534-1 groupContacts
Anjeet Kaur Basuta Saini, MDNPI 14072885742 hospitals1 groupContacts
Kirsten Elise Shaw, MDNPI 15588404702 hospitals1 groupContacts
James P. Sweeney, MDNPI 19322130143 hospitals1 groupContacts
Sikandra Hasnain Tank, MDNPI 1811420326--Contacts
David Kenneth Trefflich, MDNPI 18618369421 hospital1 groupContacts
Sukhpreet Singh Walia, MDNPI 13161201574 hospitals2 groupsContacts
Roman M. Winter, MDNPI 15889793715 hospitals1 groupContacts
Joseph Stephen Yorke, MDNPI 18119295163 hospitals1 groupContacts
Susan Ziemba, MDNPI 1427065978--Contacts

The list shows the 37 internists with a public profile. The other 5 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

Find Santa Maria internists by the EHR they use

Dmand AI has the EHR for 39 of 42 Santa Maria 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.

Central Coast Inpatient Consultants has the most internists in Santa Maria, with 11

Pacific Central Coast Health Centers Medical Group is second with 8, and Community Health Centers of the Central Coast, Inc. third with 7. Counts are internists with a California address linked to each group.

Sources: Dmand AI Affiliation Data and Dmand AI Org Hierarchy Data

Dignity Health - Marian Regional Medical Center has the most affiliated internists in Santa Maria, with 27

Dignity Health - French Hospital Medical Center is second with 15, and Lompoc Valley Medical Center third with 4. Santa Maria internists are affiliated with 6 hospitals in all.

Hospitals with the most internists in Santa Maria
#HospitalHealth systemInternists
1Dignity Health - Marian Regional Medical CenterSanta MariaCommonSpirit Health27
2Dignity Health - French Hospital Medical CenterSan Luis ObispoCommonSpirit Health15
3Lompoc Valley Medical CenterLompocLompoc Valley Medical Center4
4Adventist Health Twin CitiesTempletonAdventist Health3
5Adventist Health Sierra VistaSan Luis ObispoAdventist Health2
6Santa Barbara Cottage HospitalSanta BarbaraCottage Health1

Top 6 of 6 Santa Maria 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 Santa Maria internists practice at a hospital: 28 of the 35 with a mapped site

17 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.

Santa Maria internists by site of care

  1. Hospitals28
  2. Medical group practices17
  3. Home health agencies13
  4. FQHCs7
  5. Physician offices3

Sources: Dmand AI Affiliation Data and Dmand AI Practice Data

44% of Santa Maria internists finished medical school 30 or more years ago

15 of the 34 Santa Maria internists with a graduation year on file. 3 graduated in the last 10 years, fewer than graduated 40 or more years ago.

Physicians by years since medical school

  1. Under 10 years ago3
  2. 10 to 19 years ago8
  3. 20 to 29 years ago8
  4. 30 to 39 years ago8
  5. 40 or more years ago7

Source: Dmand AI Professional Profile Data

Every Santa Maria 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 Santa Maria 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 Santa Maria practice address.

FAQ

Frequently asked questions about internists in Santa Maria

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 Santa Maria?

42 internists have an active NPI, a Santa Maria practice address and internal medicine (taxonomy code 207R00000X) as their primary specialty. 36 of them are linked to a hospital or medical group.

Which Santa Maria medical groups have the most internists?

Central Coast Inpatient Consultants, with 11, followed by Pacific Central Coast Health Centers Medical Group with 8 and Community Health Centers of the Central Coast, Inc. with 7.

Which Santa Maria hospitals have the most internists?

Dignity Health - Marian Regional Medical Center, with 27 affiliated internists, followed by Dignity Health - French Hospital Medical Center with 15 and Lompoc Valley Medical Center with 4.

What share of Santa Maria internists practice at a hospital?

28 of the 35 Santa Maria internists with a mapped site of care, or 80%, 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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