Doctor profile · Federal record
Dr. Stephen Welter, M.D.
Internal Medicine Physician · San Rafael, CA
- NPI 1801906136
- 20 yrs on file
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
100 Thorndale Drive, Medical Clinic
San Rafael, CA 94903
(415) 492-2410
fax (415) 499-8395 - Mailing address
-
16 Sutro CT
Novato, CA 949472809
Credentials & registration
- NPI registered
- August 2006 — 20 yrs on file
- Profile last updated
- April 4, 2022
- Specialty taxonomy
- 207R00000X — NUCC code
- State license (1)
- California #G37927
- Medicaid
- CA #00G379270
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1801906136. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$20
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Pfizer INC. | 1 | $19.59 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
325
Patients
38
Total drug cost
$41,489
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Amlodipine Besylate | Generic | 45 | 12 | $367 |
| Atorvastatin Calcium | Generic | 34 | 14 | $451 |
| Furosemide | Generic | 34 | 12 | $329 |
| Levothyroxine Sodium | Generic | 31 | 0 | $795 |
| Eliquis (Apixaban) | Brand | 29 | 0 | $32,208 |
| Losartan Potassium | Generic | 23 | 0 | $407 |
| Lisinopril | Generic | 17 | 0 | $182 |
| Omeprazole | Generic | 17 | 0 | $292 |
| Lorazepam | Generic | 16 | 0 | $141 |
| Mirtazapine | Generic | 16 | 0 | $610 |
Frequently asked questions
What is Dr. Stephen Welter's medical specialty?
Dr. Stephen Welter practices Internal Medicine Physician in San Rafael, CA.
Where does Dr. Stephen Welter practice?
Dr. Stephen Welter practices at 100 Thorndale Drive, San Rafael, CA 94903. Office phone: 4154922410.
What is Dr. Stephen Welter's NPI?
Dr. Stephen Welter's National Provider Identifier (NPI) is 1801906136, issued by NPPES.