Doctor profile · Federal record
Dr. Timothy Leach, M.D. FACOG
Obstetrics & Gynecology Physician (CMS: Obstetrics/Gynecology) · Walnut Creek, CA
- NPI 1356429534
- Accepts Medicare
- 33 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
110 Tampico Ste 210
Walnut Creek, CA 945982962
(925) 935-6952
fax (925) 935-1396
Credentials & registration
- NPI registered
- November 2006 — 20 yrs on file
- Profile last updated
- March 4, 2025
- Year of graduation
- 1993 — 33 yrs since
- Specialty taxonomy
- 207V00000X — NUCC code
- State license (1)
- California #G81727
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1356429534. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
537
Distinct HCPCS
6
Medicare allowed
$58,319
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 217 | 207 | $151 | |
G0101 |
Cervical or vaginal cancer screening; pelvic and clinical breast examination | 133 | 133 | $47 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 75 | 56 | $107 | |
Q0091 |
Screening papanicolaou smear; obtaining, preparing and conveyance of cervical or vaginal smear to laboratory | 66 | 66 | $55 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 26 | 26 | $194 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 20 | 20 | $132 |
In context: peer comparison
Among 6 peers in Walnut Creek Obstetrics & Gynecology Physician, average services per provider: 54. This provider delivers 9.9× the peer median.Open Payments
Industry payments received
All-time total
$439
Transactions
18
Manufacturers
7
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Astellas Pharma US INC | 9 | $212.27 | |
| Evofem Biosciences, INC. | 3 | $93.26 | |
| Daiichi Sankyo INC. | 2 | $37.70 | |
| Pfizer INC. | 1 | $27.47 | |
| Millicent US INC | 1 | $26.70 | |
| Exeltis, USA INC. | 1 | $25.28 | |
| Organon LLC | 1 | $16.71 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
178
Patients
55
Total drug cost
$13,475
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Estradiol | Generic | 37 | 25 | $3,445 |
| Alendronate Sodium | Generic | 33 | 16 | $634 |
| Progesterone (Progesterone, Micronized) | Brand | 24 | 0 | $1,118 |
| Valacyclovir (Valacyclovir Hcl) | Brand | 20 | 0 | $1,710 |
| Clobetasol Propionate | Generic | 19 | 14 | $1,166 |
| Yuvafem (Estradiol) | Brand | 17 | 0 | $3,805 |
| Ibandronate Sodium | Generic | 16 | 0 | $236 |
| Estradiol (Once Weekly) (Estradiol) | Brand | 12 | 0 | $1,362 |
Hospital affiliations
Frequently asked questions
What is Dr. Timothy Leach's medical specialty?
Dr. Timothy Leach practices Obstetrics & Gynecology Physician in Walnut Creek, CA.
Where does Dr. Timothy Leach practice?
Dr. Timothy Leach practices at 110 Tampico Ste 210, Walnut Creek, CA 945982962. Office phone: 9259356952.
What is Dr. Timothy Leach's NPI?
Dr. Timothy Leach's National Provider Identifier (NPI) is 1356429534, issued by NPPES.
Does Dr. Timothy Leach accept Medicare assignment?
Yes. Dr. Timothy Leach accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Timothy Leach commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Cervical or vaginal cancer screening; pelvic and clinical breast examination (HCPCS G0101); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.