Medical groups in Westlake Village, CA
- Medical groups
- 33
- Multi-specialty
- 4
- Single-specialty
- 29
- More than one site
- 11
There are 33 medical groups in Westlake Village with a Medicare PAC ID. Pacific Heritage Medical Group is the largest, with 38 California physicians, followed by ONclick Healthcare with 29. 79% of Westlake Village groups are independent.
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Pacific Heritage Medical Group is the largest medical group in Westlake Village, with 38 physicians
Ranked by physicians with a California address linked to each group based in Westlake Village. ONclick Healthcare is second with 29, and DLV Vision third with 14.
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Sort and filter all 33 Westlake Village medical groups by specialty, parent organization, group size, EHR in use and decision makers in Dmand AI.
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
79% of Westlake Village 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.
Westlake Village medical groups by ownership
- Independent26
- Platform or corporate owner2
- Other organization5
Source: Dmand AI Org Hierarchy Data
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Dmand AI maps the owners, administrators and physician leaders at each of the 33 Westlake Village medical groups, with the parent organization above each one, and finds validated work emails and mobile numbers.
2 Westlake Village 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.
Westlake Village medical groups by site of care
- Hospitals2
- Ambulatory surgery centers1
- Skilled nursing facilities1
- Therapy and rehab centers1
- Behavioral health facilities1
Sources: Dmand AI Practice Data and Dmand AI Org Hierarchy Data
Behavioral and mental health groups are the most common medical groups in Westlake Village, with 9
Each group is counted once, under its main specialty. Rehabilitation and therapy groups are second, with 7, and 4 Westlake Village groups are multi-specialty.
- Behavioral and mental health9
- Rehabilitation and therapy7
- Primary care5
- Chiropractic3
- Dermatology3
- Eye care3
- Anesthesia and pain1
- Emergency and hospital medicine1
- Pathology and laboratory1
Source: Dmand AI Professional Profile Data
366 California HCPs work in Westlake Village medical groups, 97 of them physicians
Each clinician is counted once, across every Westlake Village group they are linked to. Only clinicians with a California address are counted.
HCPs in Westlake Village medical groups by type
- Nurses and nurse practitioners114
- Physicians (MD, DO)97
- Behavioral health clinicians78
- Therapists (PT and OT)38
- Optometrists and opticians14
- Other HCPs25
Source: Dmand AI Affiliation Data
Each Westlake Village 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
Free account: 30 days free, self-serve, no credit card.
Sources: Doctors and Clinicians National Downloadable File (CMS), Medicare Physician & Other Practitioners (CMS) and Dmand AI Org Hierarchy Data
Sources for the Westlake Village medical group directory
| 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 inaccuracyRemove my information
The directory lists groups based in Westlake Village with a Medicare PAC ID.
FAQ
Frequently asked questions about medical groups in Westlake Village
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 Westlake Village?
There are 33 medical groups based in Westlake Village with a Medicare PAC ID: 4 multi-specialty and 29 single-specialty. 11 of them have more than one site.
What is the largest medical group in Westlake Village?
Pacific Heritage Medical Group, with 38 physicians and 81 HCPs with a California address. ONclick Healthcare is second with 29, and DLV Vision is third with 14.
How many Westlake Village medical groups are independent?
26, or 79%, have no larger parent organization in the Dmand AI org hierarchy. 2 to a physician platform or corporate owner.
How many Westlake Village medical groups practice at a hospital?
2 Westlake Village 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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