Doctor profile · Federal record
Dr. SIOBHAN CALHOUN, MD
Obstetrics & Gynecology Physician (CMS: OBSTETRICS/GYNECOLOGY) · FREMONT, CA
- NPI 1396726295
- Accepts Medicare
- MIPS 81.9 / 100 · 2023
- 31 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2299 MOWRY AVE, #3C
FREMONT, CA 945381621
(510) 796-7057
fax (510) 796-5198
Credentials & registration
- NPI registered
- November 2005 — 21 yrs on file
- Profile last updated
- July 8, 2007
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 207V00000X — NUCC code
- State license (1)
- California #A62859
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1396726295. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
68
Distinct HCPCS
2
Medicare allowed
$5,336
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 35 | 25 | $108 | |
G0101 |
Cervical or vaginal cancer screening; pelvic and clinical breast examination | 33 | 33 | $47 |
In context: peer comparison
Among 8 peers in this city , average services per provider: 32. This provider delivers 2.1× the peer median.Open Payments
Industry payments received
All-time total
$25
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Hologic Sales and Service, LLC | 1 | $25.18 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
31
Patients
12
Total drug cost
$2,578
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Estradiol | Generic | 18 | 0 | $2,460 |
| Triamcinolone Acetonide | Generic | 13 | 12 | $118 |