Company lists · Data refreshed September 2026

Top 22 Multi-specialty medical groups based in Los Angeles, United States

RevenueBase identified 70 multi-specialty medical groups headquartered in Los Angeles, United States as of September 2026 and tracks 19,832 professional contacts across them, including 5,242 with verified work emails. New York is the largest hub.

This list covers multi-specialty medical groups headquartered in Los Angeles, United States, matched on what each company actually does as described in its own words. Ranked by team size, largest first. Every row shows the company's own description, its RevenueBase Smart Search rating, and when it was last checked. Data refreshed September 17, 2026.

Published by RevenueBase, a B2B data infrastructure company. This list was built with RevenueBase Smart Search, the natural-language company search RevenueBase customers use to build their own targeted lists and unlock verified emails and direct dials at the companies on them. How these lists are built and judged.

How to read this list HQ checked on every row RevenueBase Smart Search rating on every row Refreshed Sep 17, 2026 86% judged on-target in blind review
70Companies
19,832Contacts tracked
5,242Verified emails
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The 22 largest multi-specialty medical groups based in Los Angeles, United States

Ranked by team size
Top 22 of 70 multi-specialty medical groups based in Los Angeles, United States, ranked by team size, largest first. Data refreshed Sep 17, 2026. RevenueBase Smart Search rates how each company's information relates to multi-specialty medical groups: strong evidence (its own description names it), partial (names part of it), indirect (matched on the rest of its profile rather than the description shown). Click a contact count to view that company's people.
#CompanyRevenueBase Smart SearchHeadquartersEmployeesContacts
1Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 202610001+15,745 contacts →

Partial evidence

“For more than half a century, UCLA Health has provided the best in healthcare and the latest in medical technology to the people of Los Angeles and throughout the world.”

Source: RevenueBase Database · checked Sep 17, 2026
2Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 20261,001-5,000840 contacts →

Partial evidence

“Regal Medical Group, Lakeside Community Healthcare, ADOC Medical Group, and Community Surgery Center of Glendale – part of the Heritage Provider Network – is recognized as one of…”

Source: RevenueBase Database · checked Sep 17, 2026
3Strong evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 2026501-1,000303 contacts →

Strong evidence

“In 1991, a group of dedicated dental professionals saw the need for quality, multi-specialty dental care in many communities throughout the greater Los Angeles area.”

Source: RevenueBase Database · checked Sep 17, 2026
4Strong evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 2026501-1,000170 contacts →

Strong evidence

“Staffed by more than 600 physicians, representing over 40 specialties, Olympia Medical Center meets the healthcare needs of its communities through continuous program enhancement…”

Source: RevenueBase Database · checked Sep 17, 2026
5Indirect evidenceLos Angeles, United StatesHQ checked Sep 17, 2026501-1,000129 contacts →

Indirect evidence

“Located in the heart of Los Angeles, PAMC has provided compassionate quality health care for over 150 years.”

Source: RevenueBase Database · checked Sep 17, 2026
6Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 2026201-50091 contacts →

Indirect evidence

“The mission of the Watts Healthcare Corporation is to improve the health and well-being of the people and communities that we serve by ensuring access to compassionate, quality…”

Source: RevenueBase Database · checked Sep 17, 2026
7Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 202651-20030 contacts →

Partial evidence

“Family Care Specialists is a fully owned subsidiary of Altais Clinical Services.”

Source: RevenueBase Database · checked Sep 17, 2026
8Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 202651-20028 contacts →

Partial evidence

“Los Angeles Orthopedic Surgery Specialists provides compassionate, high-quality orthopedic care to help patients reach lifelong wellness.”

Source: RevenueBase Database · checked Sep 17, 2026
9Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 202611-5026 contacts →

Partial evidence

“Healthline Medical Group makes it easy to consult with an experienced physician in the Van Nuys area no matter what sort of medical concern you might have.”

Source: RevenueBase Database · checked Sep 17, 2026
10Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 202651-20020 contacts →

Partial evidence

“THRIVE COMPREHENSIVE MEDICAL GROUP is a company based out of POST OFFICE BOX #573041, TARZANA, California, United States.”

Source: RevenueBase Database · checked Sep 17, 2026
11Partial evidenceLos Angeles, United StatesHQ checked Sep 17, 202611-5019 contacts →

Partial evidence

“Welcome Health is a new, recently announced medical group providing best in class care to older adults, both in person and through telehealth and emerging digital health…”

Source: RevenueBase Database · checked Sep 17, 2026
12Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 202651-20017 contacts →

Indirect evidence

“Bluestone is family owned and operated since 2010 with 30+ years prior risk management and clinical experience.”

Source: RevenueBase Database · checked Sep 17, 2026
13Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 202611-5011 contacts →

Indirect evidence

“Health Atlast is bringing the best of all worlds to patients and uniting doctors to be successful.”

Source: RevenueBase Database · checked Sep 17, 2026
14Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 202611-509 contacts →

Indirect evidence

Source: RevenueBase Database · checked Sep 17, 2026
15Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 202611-506 contacts →

Indirect evidence

“Sensa Health’s mission is to make a healthier and enjoyable life accessible through the senses for everyone.”

Source: RevenueBase Database · checked Sep 17, 2026
16Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 202611-505 contacts →

Indirect evidence

“Drs.”

Source: RevenueBase Database · checked Sep 17, 2026
17Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 202611-505 contacts →

Partial evidence

“Primary Care Medical Center.”

Source: RevenueBase Database · checked Sep 17, 2026
18Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 2026201-5004 contacts →

Indirect evidence

“Founded in 2007, UrgentMED opened with the intent to revolutionize the healthcare industry.”

Source: RevenueBase Database · checked Sep 17, 2026
19Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 202611-504 contacts →

Indirect evidence

“Our organization was founded in 1992 in the MacArthur Park area of Los Angeles.”

Source: RevenueBase Database · checked Sep 17, 2026
20Partial evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 20261-104 contacts →

Partial evidence

“At Ascending Medicine, we prioritize your health and wellness journey, removing barriers to unlock your full potential.”

Source: RevenueBase Database · checked Sep 17, 2026
21Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 202611-503 contacts →

Indirect evidence

“Our mission is to provide you with personalized, high-quality care.”

Source: RevenueBase Database · checked Sep 17, 2026
22Indirect evidenceLos Angeles, CA, United StatesHQ checked Sep 17, 20261-102 contacts →

Indirect evidence

“The clinic pays attention to its patients and provides qualified primary care services including Primary care physician, Internist, Chiropractor, Podiatrist services, and IV…”

Source: RevenueBase Database · checked Sep 17, 2026

Showing 22 of 70 multi-specialty medical groups based in Los Angeles, United States

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Multi-specialty medical groups based in Los Angeles, United States at a glance

As of Sep 17, 2026
26.4%Verified-email coverage
283.3Average contacts per company
11-50Median size (employees)
200.0%Largest-city concentration · New York
Sep 17, 2026Page data refreshed

Companies by employee count

1-10
21
11-50
23
51-200
10
201-500
5
501-1,000
4
1,001-5,000
4
10001+
2

Email recency for this list is measured across the whole United States list rather than for Los Angeles, so it is reported there. Company counts and contact totals on this page are exact for Los Angeles, over 70 companies.

How this list was built

Company categories are rarely black and white. RevenueBase reads each company's own description of its business to decide whether it belongs among multi-specialty medical groups, so some rows will be adjacent to the category rather than pure plays. The description and RevenueBase Smart Search rating on every row are there so you can check each match yourself.

Source
The RevenueBase company graph: 60 million companies and 398.9 million professional contacts resolved from primary sources, queried with RevenueBase Smart Search, the natural-language company search available to every RevenueBase user.
What qualifies
Companies headquartered in Los Angeles, United States whose own description of what they do matches “multi-specialty medical groups”. Matching reads each company's description, not its industry code or its name.
RevenueBase Smart Search
RevenueBase Smart Search is how this list is assembled and how each row is rated. RevenueBase's data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to a category defined in a user's own words. Each row is rated strong evidence (its own description names multi-specialty medical groups), partial evidence (it names part of the category) or indirect evidence (the description shown names none of it and the match rests on the rest of the company's profile). The description supporting each rating is quoted on the row.
What we exclude
Companies whose own description does not clearly place them among multi-specialty medical groups, and records with no verified work email. Companies headquartered outside Los Angeles are excluded even when they keep an office there.
Match quality
In blind human judging of this matching method, 86% of matched companies were on target. Expect roughly 1 in 7 rows to be adjacent to the category rather than a pure play. Every row shows the company's own description and its RevenueBase Smart Search rating so you can judge each match yourself. Read the full methodology: how the lists are built, how the judging worked, and what the figure means.
Ranking
Team size, largest first: companies are ordered by the number of professionals RevenueBase tracks at each one. Employee ranges shown are reported bands, for context.
Verification
Every listed company carries at least one verified work email, 5,242 across the full list. Contacts re-verify on a rolling cadence, and each contact's own verification date is shown inside RevenueBase.
Refresh
This page's figures were pulled from the company graph on September 17, 2026. Lists refresh periodically as the graph is re-checked.
Corrections
Wrong category, wrong headquarters, or a company that has closed? Use “Report an issue” on any row. Reports go to the RevenueBase Data Team and feed back into the company graph.

Multi-specialty medical groups by metro in the United States

Frequently asked

What is RevenueBase Smart Search?

RevenueBase Smart Search is how RevenueBase decides which companies belong on this list and how strongly each one fits. Its data engine and AI assess a company's LinkedIn profile, information supplied directly by the company, its website and other publicly available information, then relate it to the category the list is about. Each row is rated strong evidence when the company's own description names multi-specialty medical groups, partial evidence when it names part of the category, and indirect evidence when the description shown names none of it and the match rests on the rest of the company's profile.

How many multi-specialty medical groups are there based in Los Angeles, United States?

RevenueBase identified 70 multi-specialty medical groups headquartered in Los Angeles, United States as of September 2026, matched on each company's own description of what it does rather than its industry code.

What is the largest company on this list?

Ucla Health, headquartered in Los Angeles, tops this list with the largest team on record.

Which city has the most multi-specialty medical groups?

New York leads with 140 headquartered companies, followed by Houston (131) and Miami (87).

How do I get contact information for these companies?

A free RevenueBase account lets you run this exact search and work the top results, verified emails and direct dials included. Upgrading unlocks all 5,242 verified decision-maker contacts tracked across these 70 companies.

How current is this list?

The list refreshes periodically as the company graph is re-checked. This page's figures were pulled on September 17, 2026.

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About this data

RevenueBase is a B2B data infrastructure company. Its company graph covers 60 million companies and 398.9 million professional contacts, with emails verified on a rolling cadence rather than scraped once and left to decay. These company lists are generated directly from that graph with RevenueBase Smart Search, the same natural-language company search every RevenueBase user has: describe a market in plain words, get the companies that match, and add verified emails and direct dials for the people at them. It is the same data that powers RevenueBase's B2B data products, and a free account includes 500 credits to start. How these lists are built and judged.