Doctor profile · Federal record
Dr. Simin Siddiq, M.D.
Internal Medicine Physician (CMS: Internal Medicine) · Fremont, CA
- NPI 1255362422
- Accepts Medicare
- 49 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
2333 Mowry Ave, Suite 300
Fremont, CA 94538
(510) 796-0222
fax (510) 796-7760
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- April 15, 2010
- Year of graduation
- 1977 — 49 yrs since
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #A38666
- Medicaid
- CA #00A38666
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1255362422. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
938
Distinct HCPCS
10
Medicare allowed
$87,944
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 297 | 103 | $107 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 252 | 99 | $151 | |
G0439 |
Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 58 | 58 | $153 | |
36415 |
Insertion of needle into vein for collection of blood sample | 51 | 42 | $8 | |
80053 |
Blood test, comprehensive group of blood chemicals | 37 | 33 | $10 | |
77075 |
Complete x-ray of body bones | 35 | 35 | $130 | |
80061 |
Blood test, lipids (cholesterol and triglycerides) | 34 | 31 | $13 | |
85025 |
Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 34 | 33 | $8 | |
77080 |
Dxa bone density measurement of hip, pelvis, spine | 29 | 29 | $49 | |
84443 |
Blood test, thyroid stimulating hormone (tsh) | 25 | 24 | $16 |
In context: peer comparison
Among 29 peers in this city , average services per provider: 129. This provider delivers 7.3× the peer median.Open Payments
Industry payments received
All-time total
$62
Transactions
3
Manufacturers
2
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Janssen Pharmaceuticals, Inc | 2 | $39.52 | |
| Boston Scientific Corporation | 1 | $22.97 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,272
Patients
407
Total drug cost
$26,516
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 170 | 54 | $3,212 |
| Metformin Hcl | Generic | 138 | 44 | $2,554 |
| Simvastatin | Generic | 121 | 37 | $2,480 |
| Alendronate Sodium | Generic | 106 | 36 | $1,842 |
| Levothyroxine Sodium | Generic | 101 | 30 | $2,203 |
| Rosuvastatin Calcium | Generic | 89 | 27 | $2,657 |
| Losartan Potassium | Generic | 88 | 30 | $2,056 |
| Atorvastatin Calcium | Generic | 85 | 28 | $1,796 |
| Lisinopril | Generic | 82 | 24 | $1,215 |
| Metoprolol Succinate | Generic | 59 | 16 | $1,966 |
Frequently asked questions
What is Dr. Simin Siddiq's medical specialty?
Dr. Simin Siddiq practices Internal Medicine Physician in Fremont, CA.
Where does Dr. Simin Siddiq practice?
Dr. Simin Siddiq practices at 2333 Mowry Ave, Fremont, CA 94538. Office phone: 5107960222.
What is Dr. Simin Siddiq's NPI?
Dr. Simin Siddiq's National Provider Identifier (NPI) is 1255362422, issued by NPPES.
Does Dr. Simin Siddiq accept Medicare assignment?
Yes. Dr. Simin Siddiq accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Simin Siddiq commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.