Payer details
San Diego County Medical Services (County Medical Services)
This link may open a general payer website rather than a provider portal.
- Primary payer ID
- MSO11
- Directory ID
- WMWJQ
- State / territory
- California
- Plan type
- —
- Coverage
- medical
- Parent payer group
- —
Transaction support
Enrollment requirements apply before use.
Claim status
276 / 277
Eligibility checks
270 / 271
Names & identifiers
- Also known as
- Americhoice · San Diego County Medical Services (CMS) · San Diego County Sheriffs Department
- Alternate payer IDs
- 6190 · MSO11 · MSO55
These identifiers are listed as supplied. Confirm the correct ID with your clearinghouse for the intended transaction; an alternate ID is not a universal routing ID.
Directory details
Directory updated September 20, 2026.
Transaction availability can depend on the plan, enrollment, and channel. A red reliability dot means no supported capabilities are published or a disruption has been reported by Ember. Green checks indicate supported capabilities, subject to enrollment and authorized portal access.
Payer names are used for identification. Ember is not affiliated with or endorsed by the listed payers.