Rheumatologists in California

  • Rheumatology
  • California
Rheumatologists
883
Linked to a hospital or group
734
Hospitals with a rheumatologist
218
Medical groups with a rheumatologist
247
Cities
194

There are 883 rheumatologists in California. Southern California Permanente Medical Group has the most, 52, and Ronald Reagan UCLA Medical Center has the most affiliated rheumatologists, 47. Los Angeles is home to 96, and 33% finished medical school 30 or more years ago.

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California rheumatologists, listed A to Z by last name

Each rheumatologist on the list has rheumatology as their primary specialty and a California practice address. The list shows the NPI and city, 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 883 California rheumatologists by city, hospital, medical group, the EHR they use and Medicare volume in Dmand AI.

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California rheumatologists, A to Z
RheumatologistHospitalsMedical groupsEmail and phone
Crispin Reynaldo Abarientos, MDCorona · NPI 1124292966--Contacts
Khurram Abbass, MDSan Jose · NPI 11544551783 hospitals2 groupsContacts
Mai Abdelnabi, MDDaly City · NPI 10133949801 hospital3 groupsContacts
Brian Tadayoshi Abe, MD, PhDStanford · NPI 1104262708--Contacts
Thomas Abel, MDSacramento · NPI 18716793991 hospital2 groupsContacts
Thomas Charles Adamson III, MDSan Diego · NPI 1639187057--Contacts
Sana Afroz, MDMoreno Valley · NPI 13567240742 hospitals5 groupsContacts
Atul Agrawal, MDWalnut Creek · NPI 15281460162 hospitals1 groupContacts
Bikramjit S. Ahluwalia, MDApple Valley · NPI 16694024673 hospitals2 groupsContacts
Shirin M. Ahmad, MDSacramento · NPI 19321823182 hospitals2 groupsContacts
Usman Ajaz, MDVista · NPI 19122610254 hospitals1 groupContacts
Phillip Aleksiejuk, MDWoodland Hills · NPI 10638445792 hospitals2 groupsContacts
Stanley J. Alexander, MDGlendora · NPI 1497814685--Contacts
Abdalhamid F. Al Harash, FACP, MDChino · NPI 19627906183 hospitals2 groupsContacts
Nida Ali, MDSacramento · NPI 18810756461 hospital3 groupsContacts
Marjan Alidoost, MDSacramento · NPI 14073449481 hospital1 groupContacts
Kavitta Baman Allem, MDOceanside · NPI 15888910223 hospitals2 groupsContacts
Basma Al Nahlawi, MDSan Marcos · NPI 1144455262-1 groupContacts
Edward Paul Amento, MDSunnyvale · NPI 1457896961--Contacts
Barkha V. Amlani, MBBSLos Gatos · NPI 15182219282 hospitals1 groupContacts
Lalitha Ananth, MDLos Angeles · NPI 1679597033-1 groupContacts
Christine M. Anastasiou Perlegos, MDStanford · NPI 18810388183 hospitals7 groupsContacts
Bradley T. Andersen, MDRiverside · NPI 1528018470-1 groupContacts
Brian Cornell Anderson, MDChula Vista · NPI 1740298074--Contacts
Brian S Andrews, MDOrange · NPI 1609970292-1 groupContacts
Rashad Ansari, MDLos Angeles · NPI 1063594372-1 groupContacts
Jeremy Anuntiyo, MDLakewood · NPI 18111835851 hospital-Contacts
Daniel G. Arkfeld, MDLos Angeles · NPI 17806101052 hospitals1 groupContacts
Rosa Theresa Artola, DOMission Hills · NPI 1962848978-1 groupContacts
Rafid R. Asfar, MDChula Vista · NPI 16394687475 hospitals6 groupsContacts
Judith Fredericka Ashouri-Sinha, MDSan Francisco · NPI 18415075061 hospital4 groupsContacts
Ali Ashrafzadeh, MDLos Angeles · NPI 1962447060--Contacts
Mandy Elizabeth Aspel, FNPApple Valley · NPI 1205594678-1 groupContacts
Muneera AtchaSalinas · NPI 11546117963 hospitals2 groupsContacts
Linda M. Atkinson, MDBaldwin Park · NPI 18110647361 hospital1 groupContacts
Amin F. Attia, MDCorona · NPI 1578626909-1 groupContacts
Karen Mae Au, MDLos Angeles · NPI 11444783061 hospital1 groupContacts
Thanda Aung, MDLos Angeles · NPI 14779749622 hospitals1 groupContacts
Tun Tun Aung, DOOrange · NPI 19226768241 hospital-Contacts
Mitchell Clyde Austin, MDNewport Beach · NPI 1669542601--Contacts
Morteza Azimian, MDLong Beach · NPI 1295940229-2 groupsContacts
Steve V. Aziz, MDTorrance · NPI 1982966271-2 groupsContacts
Soraya AzzawiLos Angeles · NPI 12558920631 hospital2 groupsContacts
Andre Babajanians, MDRiverside · NPI 1255311676-1 groupContacts
Hamayon Babary, MDMission Hills · NPI 13566843851 hospital1 groupContacts
Jeffrey Kyle Bacon, DOBakersfield · NPI 15484858164 hospitals1 groupContacts
Chay Bae, DOLaguna Hills · NPI 1861926982-1 groupContacts
Sangmee Bae, MDLos Angeles · NPI 10031725291 hospital1 groupContacts
Shahin Bagheri, MDLos Angeles · NPI 14573599781 hospital2 groupsContacts
Shirin Bagheri, MDBeverly Hills · NPI 18213418921 hospital1 groupContacts

Showing 1 to 10 of 821 California rheumatologists

The list shows the 821 rheumatologists with a public profile. The other 62 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 California rheumatologists by the EHR they use

Dmand AI has the EHR for 781 of 883 California rheumatologists, 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 rheumatologists in California, with 52

UCLA Medical Group is second with 50, and The Permanente Medical Group, Inc. third with 48. Counts are rheumatologists with a California address linked to each group.

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

Ronald Reagan UCLA Medical Center has the most affiliated rheumatologists in California, with 47

Stanford Hospital at 300 Pasteur Drive is second with 40, and UCLA Santa Monica Medical Center third with 32. California rheumatologists are affiliated with 218 hospitals in all.

Hospitals with the most rheumatologists in California
#HospitalHealth systemRheumatologists
1Ronald Reagan UCLA Medical CenterLos AngelesUniversity of California Health47
2Stanford Hospital at 300 Pasteur DriveStanfordStanford University40
3UCLA Santa Monica Medical CenterSanta MonicaUniversity of California Health32
4Cedars-Sinai Medical CenterLos AngelesCedars-Sinai Health System29
5UCSF Helen Diller Medical Center at Parnassus HeightsSan FranciscoUniversity of California Health27
6Hoag Hospital Newport BeachNewport BeachHoag Memorial Hospital Presbyterian23
7UCI Health - OrangeOrangeUC Irvine20
8Sutter Medical Center, SacramentoSacramentoSutter Health18
9Stanford Health Care Tri-ValleyPleasantonStanford University18
10UC Davis Medical CenterSacramentoUniversity of California Health18

Top 10 of 218 California hospitals with an affiliated rheumatologistAll 417 California hospitals

See every hospital and group for each California rheumatologist

Each public profile names one place a rheumatologist 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

Los Angeles has the most rheumatologists in California, with 96

Most California rheumatologists practice at a hospital: 572 of the 727 with a mapped site

484 also practice at a medical group site, and 102 at physician offices. A rheumatologist can practice at several kinds of site, so the shares overlap.

California rheumatologists by site of care

  1. Hospitals572
  2. Medical group practices484
  3. Physician offices102
  4. Home health agencies54
  5. Ambulatory surgery centers42

Sources: Dmand AI Affiliation Data and Dmand AI Practice Data

33% of California rheumatologists finished medical school 30 or more years ago

220 of the 667 California rheumatologists with a graduation year on file. 60 graduated in the last 10 years, fewer than graduated 40 or more years ago.

Physicians by years since medical school

  1. Under 10 years ago60
  2. 10 to 19 years ago199
  3. 20 to 29 years ago188
  4. 30 to 39 years ago100
  5. 40 or more years ago120

Source: Dmand AI Professional Profile Data

Every California rheumatologist 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 California rheumatologist 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

Rheumatologists are HCPs whose primary specialty is rheumatology (taxonomy code 207RR0500X), with an active NPI and a California practice address.

FAQ

Frequently asked questions about rheumatologists in California

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

How many rheumatologists are in California?

883 rheumatologists have an active NPI, a California practice address and rheumatology (taxonomy code 207RR0500X) as their primary specialty. 734 of them are linked to a hospital or medical group.

Which California medical groups have the most rheumatologists?

Southern California Permanente Medical Group, with 52, followed by UCLA Medical Group with 50 and The Permanente Medical Group, Inc. with 48.

Which California hospitals have the most rheumatologists?

Ronald Reagan UCLA Medical Center, with 47 affiliated rheumatologists, followed by Stanford Hospital at 300 Pasteur Drive with 40 and UCLA Santa Monica Medical Center with 32.

Which California cities have the most rheumatologists?

Los Angeles, with 96, followed by San Diego (48) and San Francisco (42). Rheumatologists practice in 194 California cities in all.

How many California rheumatologists finished medical school 30 or more years ago?

220 of the 667 with a graduation year on file, or 33%. 60 graduated in the last 10 years.

What is the taxonomy code for rheumatology?

207RR0500X is the NPPES taxonomy code for rheumatology. Sub-specialties with their own code are counted on their own lists.

How can I contact rheumatologists in California?

Dmand AI finds validated work emails, mobile numbers and practice phone numbers for rheumatologists in California 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.

Dmand AI

Find the right contacts among California rheumatologists

Search 883 California rheumatologists by hospital, medical group and the EHR they use, with validated work emails and mobile numbers.

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