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.

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California internists, listed A to Z by last name (10,851 to 10,900 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.

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California internists, A to Z, 10,851 to 10,900
InternistHospitalsMedical groupsEmail and phone
Nicolas John Nuttall, MDMonterey · NPI 18413882792 hospitals-Contacts
Fabian A. Nwadei, MDFresno · NPI 14573483101 hospital1 groupContacts
Tochi Jeffrey Nwaneri Nwosu, MDAlameda · NPI 13862226691 hospital-Contacts
Maureen Chidinma Nwaokoro, DOAntioch · NPI 14972152302 hospitals1 groupContacts
Nnenna I. Nwogu, MDMenlo Park · NPI 12557114615 hospitals2 groupsContacts
Chizoba Raluchukwu Nwosu, MDFremont · NPI 19129359092 hospitals1 groupContacts
Sandra Ujunwa Nwosu, MDSan Diego · NPI 12852138681 hospital1 groupContacts
Samuel M. Nyamu, MDMission Hills · NPI 1023268869-1 groupContacts
May K. Nyein, MDInglewood · NPI 10837406331 hospital-Contacts
Chinyere Alice Nyenke, MDBellflower · NPI 19927595341 hospital2 groupsContacts
Kenneth E. Nyman, MDVannuys · NPI 1093804304-1 groupContacts
Iwan Nyotowidjojo, MDTustin · NPI 1578976270-3 groupsContacts
Rex Chukwuma Nzeribe, MDHanford · NPI 10533225031 hospital2 groupsContacts
Sy H. Oang, DOWhittier · NPI 19726929371 hospital1 groupContacts
Cameron Isao Oba, MDSan Jose · NPI 18513579173 hospitals3 groupsContacts
Chisato Oba, MDArcadia · NPI 1669476651--Contacts
Nashwan M. Obad, MDPorterville · NPI 16891559623 hospitals5 groupsContacts
Abiodun Olufemi Obadina, MDAtascadero · NPI 1790852945-1 groupContacts
Hannah ObasiLos Angeles · NPI 16497757191 hospital1 groupContacts
Sara Thabit Makki Obeid, MD, MPHOakland · NPI 1619400678-3 groupsContacts
Meena Oberoi, MDTorrance · NPI 18311254341 hospital-Contacts
Alisa Grace Oberschelp, MDSan Francisco · NPI 14877590074 hospitals2 groupsContacts
Francis Chukwuemeka Obi, DOLos Angeles · NPI 1841659174-4 groupsContacts
Ikechi Obioma Obiocha, MDCorona · NPI 1467479295-3 groupsContacts
Udoh O. Obioha, MDPomona · NPI 1154366946-1 groupContacts
Janet Elaine Obrien, MDSan Francisco · NPI 1467702399-1 groupContacts
Daniel Patrick O'BrienLos Angeles · NPI 10235124313 hospitals1 groupContacts
James D. O'Brien, MDIrvine · NPI 19221881682 hospitals1 groupContacts
Mark C. O'Brien, DOAgoura Hills · NPI 14977442471 hospital3 groupsContacts
Meghan T. O'Brien, MDSan Francisco · NPI 12456415391 hospital5 groupsContacts
Michael Robert O'Brien, MDBurbank · NPI 1215257100-3 groupsContacts
Rebecca M. O'Brien, MDVallejo · NPI 14372237572 hospitals1 groupContacts
Stephen O'Brien, MDOakland · NPI 16997944531 hospital-Contacts
W Kiernan O'CallaghanSanta Barbara · NPI 1932294816-1 groupContacts
Fabiola Ochoa, MDSylmar · NPI 15688269561 hospital2 groupsContacts
Paloma Elizabeth Ochoa, MDSanta Barbara · NPI 13661890114 hospitals2 groupsContacts
William George Ochoa, MDMoreno Valley · NPI 15585749541 hospital2 groupsContacts
Lisa Monica Ochoa-Frongia, MDSan Francisco · NPI 11445294051 hospital3 groupsContacts
Adrienne Nicole Oconnell, DOTustin · NPI 1639472079--Contacts
Timothy John O'Connell, MDRedondo Beach · NPI 18311552901 hospital1 groupContacts
Sue Ellen Oconnor, MDSan Francisco · NPI 11543098471 hospital1 groupContacts
Brian T. O'Connor, MDGlendale · NPI 14473142401 hospital1 groupContacts
Brian P. O'Connor II, MD, MPHWalnut Creek · NPI 14870876153 hospitals2 groupsContacts
Tomio T. Odama, MDLodi · NPI 1437292612--Contacts
Gulnar P. Odera, MDAntioch · NPI 15787210152 hospitals1 groupContacts
Abayomi Adesina Odubela, MDMurrieta · NPI 1922108877-1 groupContacts
Oluyemi Odutola Odunusi, MDSan Jose · NPI 16595239344 hospitals14 groupsContacts
Mary R. Oefelein, MDBakersfield · NPI 1467437681-1 groupContacts
Matthew Clay OertliSan Francisco · NPI 18112153381 hospital2 groupsContacts
Leslie Graustark OesterichRedwood City · NPI 1245518422-2 groupsContacts

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

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