Updated October 2026

Medical groups in Thousand Oaks, CA

Medical group directory
Thousand Oaks, California

Medical groups: 66
Multi-specialty: 13
Single-specialty: 53
More than one site: 30

There are 66 medical groups in Thousand Oaks with a Medicare PAC ID. Los Robles Emergency Physicians Medical Group is the largest, with 47 California physicians, followed by Conejo Los Robles Anesthesiology Medical Group (CLRAMG) with 46. 86% of Thousand Oaks groups are independent.

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Los Robles Emergency Physicians Medical Group is the largest medical group in Thousand Oaks, with 47 physicians

Ranked by physicians with a California address linked to each group based in Thousand Oaks. Conejo Los Robles Anesthesiology Medical Group (CLRAMG) is second with 46, and Thousand Oaks Radiology third with 11.

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Medical groups in Thousand Oaks, ranked by physicians
#	Medical group	Parent organization	Physicians	HCPs	Decision makers
1	Los Robles Emergency Physicians Medical GroupThousand Oaks · 8 sites	Parent on file	47	71	Decision makers
2	Conejo Los Robles Anesthesiology Medical Group (CLRAMG)Thousand Oaks · 5 sites	Parent on file	46	50	Decision makers
3	Thousand Oaks RadiologyThousand Oaks · 6 sites	Parent on file	11	11	Decision makers
4	California Dermatology InstituteThousand Oaks · 9 sites	-	8	35	Decision makers
5	Pain Management & Injury Relief Medical CenterThousand Oaks · 1 site	-	8	21	Decision makers
6	Thousand Oaks Pathology (TOPA Diagnostics)Thousand Oaks · 2 sites	Parent on file	8	8	Decision makers
7	Vascular Neurology of Southern CaliforniaThousand Oaks · 6 sites	-	8	8	Decision makers
8	Access Eye InstituteThousand Oaks · 3 sites	-	6	12	Decision makers
9	Conejo-Simi Eye Medical GroupThousand Oaks · 3 sites	-	6	8	Decision makers
10	Infusion for HealthThousand Oaks · 28 sites	Parent on file	5	78	Decision makers
11	Mazur Statner And Dutta Medical GroupThousand Oaks · 8 sites	-	5	19	Decision makers
12	St. Charles Spine InstituteThousand Oaks · 2 sites	-	4	10	Decision makers
13	Cohen Medical CentersThousand Oaks · 2 sites	-	3	4	Decision makers
14	Neuron Medical CorporationThousand Oaks · 2 sites	-	3	4	Decision makers
15	AFP HealthThousand Oaks · 1 site	-	3	3	Decision makers
16	Concierge AnesthesiaThousand Oaks · 5 sites	-	2	49	Decision makers
17	St Charles Spine InstituteThousand Oaks · 2 sites	-	2	8	Decision makers
18	Summit Health GroupThousand Oaks · 2 sites	-	2	7	Decision makers
19	Rosaasen Family MedicineThousand Oaks · 3 sites	-	2	6	Decision makers
20	Andre Yousefia, M.D.Thousand Oaks · 1 site	-	2	4	Decision makers
21	Frontline Healthcare EndocrinologyThousand Oaks · 1 site	-	2	3	Decision makers
22	Grossman and Grossman M.D.sThousand Oaks · 1 site	-	2	3	Decision makers
23	Advanced Care Multispecialty Medical GroupThousand Oaks · 1 site	-	2	2	Decision makers
24	Elvira Lindwall MDThousand Oaks · 1 site	-	2	2	Decision makers
25	F Frey Azizi MD IncThousand Oaks · 1 site	-	2	2	Decision makers
26	Heart Center Cardiology Medical AssociatesThousand Oaks · 2 sites	-	2	2	Decision makers
27	Kaditam V. Reddy, MD, Inc.Thousand Oaks · 1 site	-	2	2	Decision makers
28	Kryger Institute of Plastic SurgeryThousand Oaks · 2 sites	-	2	2	Decision makers
29	Michael Mosher, MDThousand Oaks · 1 site	-	2	2	Decision makers
30	Perez Salehy Internal MedicineThousand Oaks · 1 site	-	2	2	Decision makers
31	Singhal Aggarwal, A Professional CorporationThousand Oaks · 1 site	-	2	2	Decision makers
32	Southern California Pulmonary and Sleep Disorders Medical CenterThousand Oaks · 1 site	Parent on file	2	2	Decision makers
33	Vishva Dev M.D. Inc.Thousand Oaks · 1 site	-	2	2	Decision makers
34	FeldCare ConnectsThousand Oaks · 2 sites	Parent on file	1	78	Decision makers
35	Bartley Physical TherapyThousand Oaks · 1 site	-	1	13	Decision makers
36	Conejo Medical & Breast Care CenterThousand Oaks · 1 site	-	1	5	Decision makers
37	Complete Performance CenterThousand Oaks · 1 site	-	1	3	Decision makers
38	Conejo GastroenterologyThousand Oaks · 1 site	-	1	3	Decision makers
39	Advanced GastroenterologyThousand Oaks · 1 site	Parent on file	1	2	Decision makers
40	Conejo Women's Medical CenterThousand Oaks · 1 site	-	1	2	Decision makers
41	Dr. Lawrence Lin, MD, FACOGThousand Oaks · 1 site	-	1	2	Decision makers
42	Kiavash Nikkhou, M.D.Thousand Oaks · 1 site	-	1	2	Decision makers
43	Sanjiv Goel, MD, Inc.Thousand Oaks · 1 site	-	1	2	Decision makers
44	Steven H. Suchman MD, Inc.Thousand Oaks · 1 site	-	1	2	Decision makers
45	ThriveworksThousand Oaks · 11 sites	Parent on file	-	49	Decision makers
46	Meridian Hand TherapyThousand Oaks · 3 sites	-	-	12	Decision makers
47	California Hand and Physical TherapyThousand Oaks · 2 sites	-	-	7	Decision makers
48	Circle of Life Counseling CenterThousand Oaks · 1 site	-	-	7	Decision makers
49	Omega Rehab & SportThousand Oaks · 2 sites	-	-	7	Decision makers
50	The Agoura-Los Robles Podiatry CentersThousand Oaks · 2 sites	-	-	7	Decision makers

Showing 1 to 10 of 66 medical groups in Thousand Oaks

Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data

86% of Thousand Oaks medical groups are independent, with no larger parent organization

A group counts as independent when no health system, platform or other organization sits above it in the org hierarchy. Every other group belongs to a larger organization.

Thousand Oaks medical groups by ownership

Independent5786%
Health system or hospital23%
Platform or corporate owner46%
Other organization35%

Source: Dmand AI Org Hierarchy Data

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Dmand AI maps the owners, administrators and physician leaders at each of the 66 Thousand Oaks medical groups, with the parent organization above each one, and finds validated work emails and mobile numbers.

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5 Thousand Oaks medical groups practice at a hospital site

Beyond their own offices, groups practice at the sites of care linked to them in the org hierarchy. A group can practice at several kinds of site, so the shares overlap.

Thousand Oaks medical groups by site of care

Hospitals58%
Ambulatory surgery centers23%
Therapy and rehab centers12%

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

Primary care groups are the most common medical groups in Thousand Oaks, with 21

Each group is counted once, under its main specialty. Rehabilitation and therapy groups are second, with 13, and 13 Thousand Oaks groups are multi-specialty.

Source: Dmand AI Professional Profile Data

688 California HCPs work in Thousand Oaks medical groups, 214 of them physicians

Each clinician is counted once, across every Thousand Oaks group they are linked to. Only clinicians with a California address are counted.

HCPs in Thousand Oaks medical groups by type

Physicians (MD, DO)21431%
Nurses and nurse practitioners17425%
Therapists (PT and OT)14120%
Physician assistants578%
Behavioral health clinicians436%
Other HCPs599%

Source: Dmand AI Affiliation Data

Each Thousand Oaks medical group profile shows the parent, sites, clinicians and identifiers

Clinicians and specialtiesA count by specialty and a sample of the group's cliniciansOn every profile
Practice locationsMain site and a sample of practice locations, with a count of the restOn every profile
Medicare Part B paymentsMedicare payments to the group, from CMSOn every profile
Group NPI and Medicare PAC IDIdentifiers for matching records across sourcesOn every profile
Parent organizationThe health system, platform or owner above the groupOn every profile
Every clinician and siteThe full roster and every practice locationWith a free account
Leader and clinician contactsWork emails and mobile numbers, found on request and then validatedWith a free account
EHR used by the group's cliniciansThe EHR in use at the group's sitesWith a free account

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Sources: Doctors and Clinicians National Downloadable File (CMS), Medicare Physician & Other Practitioners (CMS) and Dmand AI Org Hierarchy Data

Sources for the Thousand Oaks medical group directory

Sources for the data on this page
Data on this page	Source
Medical groups, specialties and sites	Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Professional Profile Data
Parent organizations and independence	Dmand AI Org Hierarchy Data
Physicians and HCPs	Dmand AI Affiliation Data
Group NPI and PAC ID	NPPES NPI Registry (CMS) and Doctors and Clinicians National Downloadable File (CMS)

Data last refreshed October 2026Report an inaccuracy Remove my information

The directory lists groups based in Thousand Oaks with a Medicare PAC ID.

FAQ

Frequently asked questions about medical groups in Thousand Oaks

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

How many medical groups are in Thousand Oaks?

There are 66 medical groups based in Thousand Oaks with a Medicare PAC ID: 13 multi-specialty and 53 single-specialty. 30 of them have more than one site.

What is the largest medical group in Thousand Oaks?

Los Robles Emergency Physicians Medical Group, with 47 physicians and 71 HCPs with a California address. Conejo Los Robles Anesthesiology Medical Group (CLRAMG) is second with 46, and Thousand Oaks Radiology is third with 11.

How many Thousand Oaks medical groups are independent?

57, or 86%, have no larger parent organization in the Dmand AI org hierarchy. 2 belong to a health system or hospital and 4 to a physician platform or corporate owner.

How many Thousand Oaks medical groups practice at a hospital?

5 Thousand Oaks groups practice at a hospital site linked to them in the Dmand AI org hierarchy.

How do I find a medical group's NPI or PAC ID?

Each medical group profile lists the group NPI and Medicare PAC ID at the top, with the main address and phone number. The NPI comes from the NPPES NPI Registry and the PAC ID from CMS Medicare enrollment.

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