Internists in California

  • Internal medicine
  • California
Internists
18,948
Linked to a hospital or group
15,803
Hospitals with an internist
370
Medical groups with an internist
2,215
Cities
510

There are 18,948 internists in California. The Permanente Medical Group, Inc. has the most, 2,011, and Stanford Hospital at 300 Pasteur Drive has the most affiliated internists, 584. Los Angeles is home to 1,376, and 34% finished medical school 30 or more years ago.

Find work emails and mobile numbers for all 18,948 California internists

Validated work emails and mobile numbers for California internists, found through healthcare waterfall enrichment, with a free Dmand AI account.

View contacts for free

California internists, listed A to Z by last name (10,951 to 11,000 of 16,751)

Each internist on the list has internal medicine 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.

Filter this list with a free account

Sort and filter all 18,948 California internists by city, hospital, medical group, the EHR they use and Medicare volume in Dmand AI.

Filter in Dmand AI
California internists, A to Z, 10,951 to 11,000
InternistHospitalsMedical groupsEmail and phone
Neil R. Okamura, DOWalnut Creek · NPI 14372617815 hospitals1 groupContacts
Tsuyoshi M. Okawa, MDTorrance · NPI 18211053051 hospital1 groupContacts
Philip J. O'Keefe, MDSan Francisco · NPI 10130897621 hospital-Contacts
John L. Okemah, MDCorning · NPI 1972615367-3 groupsContacts
Theodore E. Okerson II, MDThousand Oaks · NPI 1225170814--Contacts
Neelakshi N. Okhade, MDFremont · NPI 18312824332 hospitals1 groupContacts
Yulia A. Okhotina, MDSan Diego · NPI 15383055603 hospitals1 groupContacts
Ross Alan Okimoto, MDSan Francisco · NPI 11646520612 hospitals4 groupsContacts
Helen Chioma Okoh, MDLos Angeles · NPI 13961429562 hospitals2 groupsContacts
Alphonsus Eziagwu Okoli, MDCampbell · NPI 1437203619-1 groupContacts
Augusta Chinelo Okolo, MD, MSSacramento · NPI 14479903951 hospital-Contacts
Gisela C. Okonski, MDRedding · NPI 15189265595 hospitals-Contacts
Uchenna A. Okoronkwo II, MDCastro Valley · NPI 19220259722 hospitals3 groupsContacts
Leonard Mark Okun, MDSan Diego · NPI 1205941010-1 groupContacts
Marcel Shouichi Okura, MDClovis · NPI 16296065533 hospitals2 groupsContacts
Akinwumi Oladunni Ola, MDHanford · NPI 16291071075 hospitals1 groupContacts
Lamberto Salud Olaes, MDPasadena · NPI 18615929821 hospital1 groupContacts
Ronald P. Olah, MDPasadena · NPI 18816683413 hospitals1 groupContacts
Michael Benjamin Olalia, MDRichmond · NPI 14770863201 hospital1 groupContacts
Neal Olarte, DOSacramento · NPI 16698356171 hospital1 groupContacts
Michael P. Oleary, MDMurrieta · NPI 1346254885--Contacts
Sarah Michelle O'Leary, MDCampbell · NPI 1689932527-1 groupContacts
Alberta Cataag Olegario, MDBarstow · NPI 1053357012-1 groupContacts
Lailey Naomi N. Oliva, MDLos Altos · NPI 10737687273 hospitals1 groupContacts
Justin Matthew Olivas, MDSouth San Francisco · NPI 18913217091 hospital1 groupContacts
Deanna L. Oliver, MDCoronado · NPI 17507253624 hospitals7 groupsContacts
Diane Oliver, MDSan Mateo · NPI 1902286735--Contacts
Kerry Alan Oliver, MDEureka · NPI 13563653731 hospital3 groupsContacts
Devin Arthur Oller, MDSan Francisco · NPI 10233518974 hospitals5 groupsContacts
Mary Umahi Obasi Olomu, MDLos Angeles · NPI 1982117628--Contacts
Dagmara Olsen, MDLong Beach · NPI 1356912059-2 groupsContacts
Jeffrey D. Olsen, MDTustin · NPI 1376537399-1 groupContacts
Phillip Linwood Olsen, MDWest Hollywood · NPI 1851854145-1 groupContacts
David A. Olson, MDModesto · NPI 13462525254 hospitals1 groupContacts
Eric James Olson, MDChula Vista · NPI 1730151234-1 groupContacts
Jeffrey Taylor Olson, MDRedlands · NPI 11243861981 hospital2 groupsContacts
Lauren E. Olson, MDSan Francisco · NPI 16395339615 hospitals1 groupContacts
Peter Case Olson, MDSan Clemente · NPI 16496259552 hospitals-Contacts
Nneka Chioma Oluoha, MDMoreno Valley · NPI 17700146153 hospitals3 groupsContacts
Ann S. Omachi, MDSan Rafael · NPI 1780743740-1 groupContacts
Mulham OmbadaLos Angeles · NPI 10933942071 hospital2 groupsContacts
Julie Ann Omelveny, MDBerkeley · NPI 1861579609-2 groupsContacts
Baya OmidniaRichmond · NPI 18010372541 hospital2 groupsContacts
Ronald Hirotsugu Omino, MDWest Hills · NPI 18719124514 hospitals2 groupsContacts
Olayinka Titilola Omololu, MDVisalia · NPI 18614454701 hospital1 groupContacts
Bahman Omrani, DOSherman Oaks · NPI 1700945417--Contacts
Meral Omurtag, MDSan Diego · NPI 13968346361 hospital1 groupContacts
Gerald William Ondash, MDOceanside · NPI 1730102153-1 groupContacts
Annie Michelle Ondracek, MDSan Diego · NPI 1528695541-1 groupContacts
Ma Christina Estanislao Ondrade, MDSan Diego · NPI 12858365361 hospital1 groupContacts

The list shows the 16,751 internists with a public profile. The other 2,197 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 internists by the EHR they use

Dmand AI has the EHR for 16,556 of 18,948 California 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.

Dmand AI

Find the right contacts among California internists

Search 18,948 California internists by hospital, medical group and the EHR they use, with validated work emails and mobile numbers.

  • 30 days free
  • Self-serve
  • No credit card

Cookie settings

Turn each category on or off. Your choice is kept for 12 months and you can change it here at any time.

Necessary

Always on. Sign-in, security, downloads you asked for, your cookie choice, and the page that led to a signup.

View cookies (6)
  • dm_consentDmand AI. Your cookie choices and whether your browser sent a Global Privacy Control signal. 12 months.
  • dm_ft, dm_ltDmand AI. The first and the latest page you arrived on, with the date, so a signup is credited to the page that worked. 90 days, 30 days.
  • dm_fs, dm_lsDmand AI. The first and the latest source of a visit (a search engine, a campaign or the site that linked here). 90 days, 30 days.
  • dm_dl, dm_dl_okDmand AI. After you give an email address for a download, lets you download files without being asked again. 30 days.
  • Session and CSRF cookiesDmand AI (app.dmand.ai). Sign-in and form protection in the application. Session.
  • __cf_bm, cf_clearanceCloudflare. Tells people from automated traffic and keeps the site available. 30 minutes; cf_clearance while a security check is valid.

Analytics

On unless you turn it off. How pages are used, in aggregate, and recordings of how pages are used.

View cookies (6)
  • Google Tag ManagerGoogle. Loads the analytics and marketing tags that are on. Sets no cookie of its own and does not load when both categories are off. n/a.
  • _ga, _ga_<container-id>Google Analytics 4. Visits and page views in aggregate on dmand.ai. 2 years.
  • _clck, _clskMicrosoft Clarity. Recordings and heatmaps of how pages are used, with form fields masked. 1 year, 1 day.
  • CLID, MUID, ANONCHK, MR, SMMicrosoft (clarity.ms). Set by Microsoft when Clarity loads, to recognize a browser across sites that use Clarity. Up to 1 year.
  • None (cookieless)Ahrefs Analytics. Page views in aggregate. n/a.
  • ph_<project>_posthogPostHog. Product usage, errors and performance in app.dmand.ai, used to fix bugs and improve features. 365 days.

Marketing

On unless you turn it off, and always off when your browser sends a Global Privacy Control signal. A visitor identification service tells our sales team which companies and people visit.

View cookies (6)
  • _reb2buid, _reb2butkRB2B. Recognizes a returning browser for visitor identification. 360 days, 1 year.
  • _reb2bgeoRB2B. The location used to decide whether a visit can be identified. 20 days.
  • _reb2brefRB2B. The page or site that referred the visit. 15 days.
  • _reb2bfxf, _reb2btd, _reb2bliRB2B. Links the visit to an identified business profile. 1 month.
  • _reb2bresolveRB2B. Holds a match while it is being resolved. 2 days.
  • _reb2sessionID, _reb2bloadedRB2B. The current visit, and a guard against loading the script twice. 30 minutes, 1 second.

Functional

On unless you turn it off. Remembers choices such as a collapsed section.

View cookies (none today)