Medical groups in Westminster, CA
- Medical groups
- 38
- Multi-specialty
- 13
- Single-specialty
- 25
- More than one site
- 9
There are 38 medical groups in Westminster with a Medicare PAC ID. Family Choice Medical Group is the largest, with 70 California physicians, followed by Bolsa Medical Group with 25. 79% of Westminster groups are independent.
Find the decision makers at all 38 Westminster medical groups
Work emails and mobile numbers for practice owners, administrators and physician leaders, found through healthcare waterfall enrichment, with a free Dmand AI account.
Family Choice Medical Group is the largest medical group in Westminster, with 70 physicians
Ranked by physicians with a California address linked to each group based in Westminster. Bolsa Medical Group is second with 25, and Westminster Medical Center third with 5.
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Sort and filter all 38 Westminster medical groups by specialty, parent organization, group size, EHR in use and decision makers in Dmand AI.
Showing 1 to 10 of 38 medical groups in Westminster
Sources: Doctors and Clinicians National Downloadable File (CMS) and Dmand AI Affiliation Data
Family Choice ACO has the most physicians in Westminster medical groups, with 70 across 2 groups
Dmand AI maps every Westminster medical group to its parent organization, up to the health system or platform at the top. 1 parent organizations have two or more Westminster medical groups. Each clinician counts once per parent organization.
- Family Choice ACO
- Family Choice Medical Group
- Phuc D Nguyen, MD
See every medical group, site and clinician under Family Choice ACO
Org Hierarchy Explorer maps every group, site of care and clinician under the parent, with the leaders at each group.
Source: Dmand AI Org Hierarchy Data
For sales teams
Dmand AI maps the owners, administrators and physician leaders at each of the 38 Westminster medical groups, with the parent organization above each one, and finds validated work emails and mobile numbers.
79% of Westminster 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.
Westminster medical groups by ownership
- Independent30
- Health system or hospital2
- Platform or corporate owner2
- Community or government1
- Other organization3
Source: Dmand AI Org Hierarchy Data
2 Westminster 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.
Westminster medical groups by site of care
- Ambulatory surgery centers2
- Hospitals2
- Skilled nursing facilities1
- FQHCs1
Sources: Dmand AI Practice Data and Dmand AI Org Hierarchy Data
Primary care groups are the most common medical groups in Westminster, with 19
Each group is counted once, under its main specialty. Eye care groups are second, with 5, and 13 Westminster groups are multi-specialty.
- Primary care19
- Eye care5
- Rehabilitation and therapy3
- Chiropractic2
- Pathology and laboratory2
- Pediatrics2
- Anesthesia and pain1
- Dental and oral surgery1
- Emergency and hospital medicine1
- Orthopedics and sports medicine1
- Radiology and imaging1
Source: Dmand AI Professional Profile Data
204 California HCPs work in Westminster medical groups, 140 of them physicians
Each clinician is counted once, across every Westminster group they are linked to. Only clinicians with a California address are counted.
HCPs in Westminster medical groups by type
- Physicians (MD, DO)140
- Nurses and nurse practitioners20
- Optometrists and opticians12
- Physician assistants10
- Chiropractors8
- Other HCPs14
Source: Dmand AI Affiliation Data
Each Westminster 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 Westminster 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 Westminster with a Medicare PAC ID.
FAQ
Frequently asked questions about medical groups in Westminster
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 Westminster?
There are 38 medical groups based in Westminster with a Medicare PAC ID: 13 multi-specialty and 25 single-specialty. 9 of them have more than one site.
What is the largest medical group in Westminster?
Family Choice Medical Group, with 70 physicians and 73 HCPs with a California address. Bolsa Medical Group is second with 25, and Westminster Medical Center is third with 5.
How many Westminster medical groups are independent?
30, or 79%, have no larger parent organization in the Dmand AI org hierarchy. 2 belong to a health system or hospital and 2 to a physician platform or corporate owner.
How many Westminster medical groups practice at a hospital?
2 Westminster 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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