NAICS 621111
Physician Practices in Fillmore, CA
The 1 ZIP codes assigned to Fillmore contained 3 Medical Practice establishments in 2023.
- Establishments (2023)
- 3
- 1 ZIP codes
- 10 or more employees
- n/a
- Practical financing floor
- Share of county
- 0%
- Ventura County
- City population
- 16,937
- 2025 estimate
Figures cover the ZIP codes the U.S. Postal Service assigns to Fillmore (93015). ZIP areas are not municipal boundaries: they can extend beyond city limits and are shared between neighbouring places. This is a count of establishments in Fillmore's ZIP codes, not a count of businesses inside its city limits.
Business size mix
Fillmore is more consolidated than California as a whole: fewer micro-operators and a larger share of businesses with real headcount. Fewer targets, but the ones that exist are more likely to be financeable.
| Share of establishments | Fillmore | California | Difference |
|---|---|---|---|
| Under 5 employeesOwner-operated, often no management layer | 0.0% | 65.6% | -65.6% |
| 5 to 49 employeesThe range most individual buyers target | 0.0% | 27.4% | -27.4% |
| 10 or more employeesPractical floor for acquisition financing | 0.0% | 12.9% | -12.9% |
Nearest comparable markets
The closest places to Fillmore that also have Medical Practice establishments on record. Useful for spotting a gap next door, or realising the market you are looking at is already served from the town over.
| Market | Establishments | Vs state share |
|---|---|---|
| Moorpark | 17 | -34% |
| Santa Paula | 12 | -19% |
| Simi Valley | 93 | -2% |
| Camarillo | 104 | +41% |
| Thousand Oaks | 172 | +61% |
The wider Ventura County market
Employment and payroll are reported at county level only, so the figures below describe the county Fillmore sits in.
- County establishments (2023)
- 903
- Ventura County
- County employees
- 4,027
- Mid-March employment
- County annual payroll
- $407M
- All establishments
What acquirers look at
California’s corporate practice of medicine doctrine restricts lay ownership, so deals are structured as MSO arrangements. Not a first acquisition for an unlicensed buyer.
Other industries in Fillmore
Nearby cities
Sources
- U.S. Census Bureau, 2023 ZIP Code Business Patterns. Establishment counts and size distribution by ZIP code and NAICS, aggregated over the ZIP codes assigned to each city. Retrieved 2026-09-08.
- U.S. Census Bureau, 2023 County Business Patterns. Establishment counts, employment and annual payroll by NAICS. Retrieved 2026-09-08.
- U.S. Bureau of Labor Statistics, Quarterly Census of Employment and Wages (2026Q1). Quarterly establishment counts and employment for employers covered by unemployment insurance. Retrieved 2026-09-08.