Timothy Leach, M.D. FACOG
NPI 1356429534 · Obstetrics & Gynecology Physician · Walnut Creek, CA
Enrolled with Medicare as Practitioner - Obstetrics/Gynecology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Leach, M.D. FACOG is a Obstetrics & Gynecology Physician provider in Walnut Creek, CA (NPI 1356429534).
Provider details
- NPI number
- 1356429534
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D. FACOG
- Sex
- Male
- Sole proprietor
- No
- License
- G81727 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
573 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 241 | $153 |
| Cervical Or Vaginal Cancer Screening; Pelvic and Clinical Breast ExaminationG0101 | 141 | $47 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 92 | $109 |
| Screening Papanicolaou Smear; Obtaining, Preparing and Conveyance of Cervical Or Vaginal Smear to LaboratoryQ0091 | 42 | $57 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 27 | $198 |
| New Patient Office Or Other Outpatient Visit With Low Level of Medical Decision Making, If Using Time, 30 Minutes Or More |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Estradiol | 68 | 31 |
| Alendronate Sodium | 42 | 14 |
| Progesterone, Micronizedbrand: Progesterone | 38 | 11 |
| Clobetasol Propionate | 21 | 12 |
| Estradiolbrand: Yuvafem | 21 | — |
| Ibandronate Sodium | 18 | — |
| Estradiolbrand: Estradiol (twice Weekly) | 17 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$439 across 18 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-02
- Last updated
- 2025-03-04
- Certified
- 2025-03-04
Frequently asked questions
- What is Timothy Leach's NPI number?
- Timothy Leach's National Provider Identifier (NPI) is 1356429534, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Leach's specialty?
- Timothy Leach is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Leach located?
- Timothy Leach's practice location on file with NPPES is 110 Tampico Ste 210, Walnut Creek, CA 94598-2962.
- What is Timothy Leach's phone number?
- The practice phone number listed in the NPPES registry for Timothy Leach is (925) 935-6952.
- Does Timothy Leach accept Medicare?
- Timothy Leach is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Leach's NPI active?
- Yes — Timothy Leach's NPI (1356429534) is active in the NPPES registry as of the last update on 2025-03-04.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.