Medical groups in San Marcos, CA
- Medical groups
- 20
- Multi-specialty
- 4
- Single-specialty
- 16
- More than one site
- 9
There are 20 medical groups in San Marcos with a Medicare PAC ID. TrueCare is the largest, with 59 California physicians, followed by North County Eye Center with 12. 90% of San Marcos groups are independent.
Find the decision makers at all 20 San Marcos 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.
TrueCare is the largest medical group in San Marcos, with 59 physicians
Ranked by physicians with a California address linked to each group based in San Marcos. North County Eye Center is second with 12, and Rheumatology and Arthritis Medical Clinic third with 7.
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Sort and filter all 20 San Marcos 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
90% of San Marcos 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.
San Marcos medical groups by ownership
- Independent18
- Community or government1
- Other organization1
Source: Dmand AI Org Hierarchy Data
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Dmand AI maps the owners, administrators and physician leaders at each of the 20 San Marcos medical groups, with the parent organization above each one, and finds validated work emails and mobile numbers.
2 San Marcos 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.
San Marcos medical groups by site of care
- Therapy and rehab centers2
- Hospitals2
- FQHCs1
- Behavioral health facilities1
Sources: Dmand AI Practice Data and Dmand AI Org Hierarchy Data
Rehabilitation and therapy groups are the most common medical groups in San Marcos, with 6
Each group is counted once, under its main specialty. Eye care groups are second, with 4, and 4 San Marcos groups are multi-specialty.
- Rehabilitation and therapy6
- Eye care4
- Behavioral and mental health3
- Primary care3
- Chiropractic2
- Emergency and hospital medicine1
- Orthopedics and sports medicine1
Source: Dmand AI Professional Profile Data
307 California HCPs work in San Marcos medical groups, 87 of them physicians
Each clinician is counted once, across every San Marcos group they are linked to. Only clinicians with a California address are counted.
HCPs in San Marcos medical groups by type
- Physicians (MD, DO)87
- Therapists (PT and OT)62
- Nurses and nurse practitioners45
- Behavioral health clinicians35
- Physician assistants30
- Other HCPs48
Source: Dmand AI Affiliation Data
Each San Marcos 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 San Marcos 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 San Marcos with a Medicare PAC ID.
FAQ
Frequently asked questions about medical groups in San Marcos
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 San Marcos?
There are 20 medical groups based in San Marcos with a Medicare PAC ID: 4 multi-specialty and 16 single-specialty. 9 of them have more than one site.
What is the largest medical group in San Marcos?
TrueCare, with 59 physicians and 181 HCPs with a California address. North County Eye Center is second with 12, and Rheumatology and Arthritis Medical Clinic is third with 7.
How many San Marcos medical groups are independent?
18, or 90%, have no larger parent organization in the Dmand AI org hierarchy.
How many San Marcos medical groups practice at a hospital?
2 San Marcos 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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