Quick answers
- Where does Jeffrey D. Traynor see patients?
- Medicare's clinician data lists 2 practice locations, including Walnut Creek, CA. Call before your visit to confirm the address.
- What is Jeffrey D. Traynor's specialty?
- Medicare lists Obstetrics/Gynecology as the primary specialty.
- Does Jeffrey D. Traynor accept Medicare assignment?
- Medicare's clinician data says Jeffrey D. Traynor may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Jeffrey D. Traynor?
- (925) 891-9033, as listed in official Medicare / NPI Registry data.
- What is Jeffrey D. Traynor's NPI number?
- 1316981699. 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 Jeffrey D. Traynor is enrolled with Medicare (CMS data updated 2026-10-02).
- 110 TampicoWalnut Creek, CA 94598 (925) 891‑9033
- 110 Tampico Dr, Suite 100Walnut Creek, CA 94598
Specialties
- Obstetrics/Gynecologyprimary
Other OB-GYNs in Walnut Creek
Clinicians with the same Medicare primary specialty in Walnut Creek, CA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Northwestern University Feinberg Medical School |
| Graduation year | 1995 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1316981699 |
| 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