Quick answers
- Where does Frederick L. Johnson see patients?
- Medicare's clinician data lists 1 practice location in Stockton, CA. Call before your visit to confirm the address.
- What is Frederick L. Johnson's specialty?
- Medicare lists Anesthesiology as the primary specialty.
- Does Frederick L. Johnson accept Medicare assignment?
- Yes. Medicare's clinician data says Frederick L. Johnson accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for Frederick L. Johnson?
- (209) 952-1189, as listed in official Medicare / NPI Registry data.
- What is Frederick L. Johnson's NPI number?
- 1104983360. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Frederick L. Johnson is enrolled with Medicare (CMS data updated 2026-10-02).
- 36 W Yokuts Ave, Suite 3Stockton, CA 95207 (209) 952‑1189
Group practices
Medicare enrollment lists Frederick L. Johnson as a member of these groups (CMS data updated 2026-10-02).
- Core Anesthesia Provider Services PC10 clinicians in the group
- Core Anesthesia Services PC9 clinicians in the group
Specialties
- Anesthesiologyprimary
Other anesthesiologists in Stockton
Clinicians with the same Medicare primary specialty in Stockton, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1989 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1104983360 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians