Quick answers
- Where does Clayton G. Johnsen see patients?
- Medicare's clinician data lists 2 practice locations, including San Bernardino, CA. Call before your visit to confirm the address.
- What is Clayton G. Johnsen's specialty?
- Medicare lists Podiatry as the primary specialty.
- Does Clayton G. Johnsen accept Medicare assignment?
- Yes. Medicare's clinician data says Clayton G. Johnsen 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 Clayton G. Johnsen?
- (909) 886-3668, as listed in official Medicare / NPI Registry data.
- What is Clayton G. Johnsen's NPI number?
- 1003141318. 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 Clayton G. Johnsen is enrolled with Medicare (CMS data updated 2026-10-02).
- 1762 N Waterman AveSan Bernardino, CA 92404 (909) 886‑3668
- 1762 N Waterman Ave, Suite BSan Bernardino, CA 92404
Group practices
Medicare enrollment lists Clayton G. Johnsen as a member of this group (CMS data updated 2026-10-02).
- Pacific Coast Podiatry PC4 clinicians in the group
Specialties
- Podiatryprimary
Other podiatrists in San Bernardino
Clinicians with the same Medicare primary specialty in San Bernardino, CA — not a recommendation.
Clinician information
| Credential | DPM |
|---|---|
| Medical school | New York College Of Podiatric Medicine |
| Graduation year | 2007 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1003141318 |
| 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