Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Timothy A Leach, MDFACOG

Individual provider Obstetrics & Gynecology Physician · NPI 1356429534

Timothy A Leach, MDFACOG is an Obstetrics/Gynecology in Walnut Creek, California. Qualified in 1993, 33 years ago. Practices with Bass Medical Group, a 292-clinician group and accepts Medicare assignment. Licensed in California.

Years since qualifying
33
Licensed in
CA
In the registry since
2006
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Practice location Address checks out

110 Tampico Ste 210
Walnut Creek, CA 94598-2962
Phone: (925) 935-6952
Fax: (925) 935-1396
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Obstetrics & Gynecology Physician (primary) Taxonomy 207V00000X · Licence G81727 (CA)

Record details

NPI number1356429534
Entity typeIndividual (Type 1)
GenderMale
Credentials MDFACOG
Sole proprietorNo
NPI enumeratedNovember 2, 2006
Last updated in NPPESMarch 4, 2025
Certification dateMarch 4, 2025

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyOBSTETRICS/GYNECOLOGY
Medical schoolOTHER
Graduated 1993 (33 years in practice)
Group practice Bass Medical Group — 292 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in Walnut Creek