Updated October 2026

Internists in Los Angeles, CA

Internal medicine
Los Angeles, California

Internists: 1,376
Linked to a hospital or group: 1,140
Hospitals with an internist: 105
Medical groups with an internist: 306
Practice at a hospital: 807

There are 1,376 internists in Los Angeles. Southern California Permanente Medical Group has the most, 264, and Ronald Reagan UCLA Medical Center has the most affiliated internists, 172. 31% finished medical school 30 or more years ago.

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Los Angeles internists, listed A to Z by last name

Each internist on the list has internal medicine as their primary specialty and a Los Angeles 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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Los Angeles internists, A to Z
Internist	Hospitals	Medical groups	Email and phone
Agustin Maria Abdallah, MDNPI 1134524184	2 hospitals	1 group	Contacts
Eman Abdallah, DONPI 1528321957	-	-	Contacts
Sahar Mustafa Abdelrahman, MDNPI 1194013417	1 hospital	-	Contacts
Farah Ali AbdiNPI 1144752783	-	1 group	Contacts
Jason J. Abdian, MDNPI 1558935577	1 hospital	2 groups	Contacts
Zahid J. Abdou, MDNPI 1013938208	1 hospital	2 groups	Contacts
Haleem Shahnawaz Abdul, MDNPI 1205369048	6 hospitals	11 groups	Contacts
Juveria Abdullah, MDNPI 1710229281	1 hospital	1 group	Contacts
Anshu Ria AbhatNPI 1326304007	1 hospital	1 group	Contacts
Angela O. Aboutalib, MDNPI 1215248984	1 hospital	4 groups	Contacts
Arun Matthew Abraham, DONPI 1316477946	-	4 groups	Contacts
Natalie Chldryan Abrahamian, MDNPI 1356882567	3 hospitals	1 group	Contacts
Arin V. Abramian, NPNPI 1487033213	-	15 groups	Contacts
Monica Cristina Abreu DiazNPI 1598294126	1 hospital	2 groups	Contacts
Amos C. Acoff, MDNPI 1386687051	1 hospital	1 group	Contacts
Kelsey Lee Adamson, MDNPI 1174056733	2 hospitals	2 groups	Contacts
Virginia Adesola Adewole, MDNPI 1639512239	2 hospitals	3 groups	Contacts
Mopelola Adetola Adeyemo, MDNPI 1457731572	1 hospital	-	Contacts
Nawal Afif, DONPI 1205464336	2 hospitals	1 group	Contacts
Mussolini AfricanoNPI 1750594891	-	1 group	Contacts
Angeli O. Agatep, MDNPI 1194873067	1 hospital	1 group	Contacts
Sangeeta K. Aggarwal, MDNPI 1578655908	1 hospital	1 group	Contacts
Etsemaye Paulos Agonafer, MD, MPH, MSNPI 1689092215	-	-	Contacts
Cynthia Irene Aguilera, MDNPI 1073005641	-	1 group	Contacts
Haig Hovan Aharonian, MDNPI 1205107653	-	2 groups	Contacts
Alast AhmadiNPI 1962088799	1 hospital	-	Contacts
Rabia Ahmed, MDNPI 1396772596	-	-	Contacts
Farah Ahmedi, DONPI 1609038462	-	3 groups	Contacts
Thomas G. Ahn, MDNPI 1669556866	1 hospital	-	Contacts
Michael Akhondi, MDNPI 1437226347	-	2 groups	Contacts
Khalil Akimi, MDNPI 1447417258	1 hospital	1 group	Contacts
Krikor A. Akmakji, MDNPI 1528116456	1 hospital	1 group	Contacts
Oshana Alahakoon, MDNPI 1285793745	1 hospital	6 groups	Contacts
David Razmik Alajajian, MDNPI 1215354337	-	3 groups	Contacts
Ronnie A. Alas, MDNPI 1306267026	3 hospitals	5 groups	Contacts
Allen A. Alaverdian, MDNPI 1730248394	2 hospitals	1 group	Contacts
Mohamad Albouidani, MDNPI 1770670713	9 hospitals	5 groups	Contacts
Edward Andrew Alexander Sr., MDNPI 1558578005	-	1 group	Contacts
Lawrence R. Alexander, MDNPI 1366590275	1 hospital	1 group	Contacts
Naheed P. Ali, MDNPI 1790786333	1 hospital	8 groups	Contacts
Nazish Nawaz Ali, MDNPI 1932121498	1 hospital	8 groups	Contacts
Saif Ali, MDNPI 1174977102	1 hospital	1 group	Contacts
Younis Arif Ali, MDNPI 1841281409	1 hospital	1 group	Contacts
Jose-Nitram Pangilinan Aliling, MDNPI 1912177759	2 hospitals	1 group	Contacts
Karla B. Almaraz, MDNPI 1477084275	-	3 groups	Contacts
Blanca Bertha Almeida, MDNPI 1508897760	-	2 groups	Contacts
Wael A. Alomar, MDNPI 1992884324	-	-	Contacts
Reynaldo Hilario Alonso, MDNPI 1295735553	1 hospital	1 group	Contacts
Sejad Al-Tahan, DONPI 1871087874	-	1 group	Contacts
Ruben E. Alvarez, MDNPI 1598832511	-	1 group	Contacts

Showing 1 to 10 of 1,242 Los Angeles internists

The list shows the 1,242 internists with a public profile. The other 134 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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Dmand AI has the EHR for 1,207 of 1,376 Los Angeles 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.

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Southern California Permanente Medical Group has the most internists in Los Angeles, with 264

UCLA Medical Group is second with 160, and Harbor-UCLA Medical Center third with 75. Counts are internists with a California address linked to each group.

Medical groups with the most internists in Los Angeles
#	Medical group	Parent organization	Internists
1	Southern California Permanente Medical GroupPasaden	Parent on file	264
2	UCLA Medical GroupLos Angeles	Parent on file	160
3	Harbor-UCLA Medical CenterTorrance	Parent on file	75
4	Optum - Downtown Los AngelesLos Angeles	Parent on file	49
5	Superior Hospitalist Medical GroupLos Angeles	-	36
6	USC Care Medical GroupLos Angeles	Parent on file	33
7	Sound PhysiciansSan Jose	Parent on file	23
8	AIDS Healthcare FoundationLos Angeles	Parent on file	17
9	Inpatient Specialist of California PCSan Bernardino	Parent on file	17
10	PIH Health PhysiciansWhittier	Parent on file	17

Top 10 of 306 Los Angeles medical groups with an internist

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

Ronald Reagan UCLA Medical Center has the most affiliated internists in Los Angeles, with 172

Los Angeles General Medical Center is second with 124, and UCLA Santa Monica Medical Center third with 108. Los Angeles internists are affiliated with 105 hospitals in all.

Hospitals with the most internists in Los Angeles
#	Hospital	Health system	Internists
1	Ronald Reagan UCLA Medical CenterLos Angeles	University of California Health	172
2	Los Angeles General Medical CenterLos Angeles	County of Los Angeles	124
3	UCLA Santa Monica Medical CenterSanta Monica	University of California Health	108
4	West Los Angeles Medical CenterLos Angeles	Kaiser Permanente	105
5	Kaiser Permanente Los Angeles Medical CenterLos Angeles	Kaiser Permanente	89
6	Cedars-Sinai Medical CenterLos Angeles	Cedars-Sinai Health System	53
7	Adventist Health White MemorialLos Angeles	Adventist Health	42
8	West Los Angeles VA Medical CenterLos Angeles	Veterans Health Administration	39
9	PIH Health Good Samaritan HospitalLos Angeles	PIH Health	29
10	Martin Luther King, Jr. Community HospitalLos Angeles	County of Los Angeles	29

Top 10 of 105 Los Angeles hospitals with an affiliated internistAll 24 Los Angeles hospitals

See every hospital and group for each Los Angeles internist

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 Los Angeles internists practice at a hospital: 807 of the 1,102 with a mapped site

545 also practice at a medical group site, and 144 at home health agencies. An internist can practice at several kinds of site, so the shares overlap.

Los Angeles internists by site of care

Hospitals80773%
Medical group practices54549%
Home health agencies14413%
Physician offices13112%
Dialysis centers11210%

Sources: Dmand AI Affiliation Data and Dmand AI Practice Data

31% of Los Angeles internists finished medical school 30 or more years ago

270 of the 874 Los Angeles internists with a graduation year on file. 197 graduated in the last 10 years.

Physicians by years since medical school

Under 10 years ago19723%
10 to 19 years ago22225%
20 to 29 years ago18521%
30 to 39 years ago14116%
40 or more years ago12915%

Source: Dmand AI Professional Profile Data

Every Los Angeles 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 Los Angeles internist directory

Sources for the data on this page
Data on this page	Source
HCPs, types and specialties	NPPES NPI Registry (CMS) and Dmand AI Professional Profile Data
Sites of care, hospitals and medical groups	Dmand AI Affiliation Data
Medical school graduation year	Dmand AI Professional Profile Data

Data last refreshed October 2026Report an inaccuracy Remove my information

Internists are HCPs whose primary specialty is internal medicine (taxonomy code 207R00000X), with an active NPI and a Los Angeles practice address.

FAQ

Frequently asked questions about internists in Los Angeles

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 Los Angeles?

1,376 internists have an active NPI, a Los Angeles practice address and internal medicine (taxonomy code 207R00000X) as their primary specialty. 1,140 of them are linked to a hospital or medical group.

Which Los Angeles medical groups have the most internists?

Southern California Permanente Medical Group, with 264, followed by UCLA Medical Group with 160 and Harbor-UCLA Medical Center with 75.

Which Los Angeles hospitals have the most internists?

Ronald Reagan UCLA Medical Center, with 172 affiliated internists, followed by Los Angeles General Medical Center with 124 and UCLA Santa Monica Medical Center with 108.

What share of Los Angeles internists practice at a hospital?

807 of the 1,102 Los Angeles internists with a mapped site of care, or 73%, 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 Los Angeles?

Dmand AI finds validated work emails, mobile numbers and practice phone numbers for internists in Los Angeles 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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