Doctor profile · Federal record
Dr. Andrew Chen, M.D.
Urology Physician (CMS: Urology) · Urology Physician · Walnut Creek, CA
- NPI 1811039480
- Accepts Medicare
- 26 yrs in practice
- Licensed in 2 states
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
1425 S Main St, Department of Urology
Walnut Creek, CA 945965318
(310) 869-6386
Credentials & registration
- NPI registered
- February 2007 — 19 yrs on file
- Profile last updated
- February 11, 2022
- Year of graduation
- 2000 — 26 yrs since
- Specialty taxonomy
- 208800000X — NUCC code
- State licenses (2)
- California #A80210 · New York #238799
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1811039480. Last verified May 11, 2026.Open Payments
Industry payments received
All-time total
$174
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Sumitomo Pharma America, INC. | 1 | $174.13 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
1,285
Patients
534
Total drug cost
$48,546
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Finasteride | Generic | 418 | 138 | $6,503 |
| Tamsulosin Hcl | Generic | 350 | 130 | $7,009 |
| Trospium Chloride | Generic | 84 | 31 | $2,681 |
| Ciprofloxacin Hcl | Generic | 77 | 71 | $484 |
| Terazosin Hcl | Generic | 76 | 26 | $4,102 |
| Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) | Brand | 60 | 53 | $424 |
| Potassium Citrate ER (Potassium Citrate) | Brand | 38 | 13 | $4,774 |
| Cefpodoxime Proxetil | Generic | 34 | 28 | $905 |
| Myrbetriq (Mirabegron) | Brand | 29 | 0 | $17,634 |
| Oxybutynin Chloride ER (Oxybutynin Chloride) | Brand | 26 | 11 | $414 |
Frequently asked questions
What is Dr. Andrew Chen's medical specialty?
Dr. Andrew Chen practices Urology Physician in Walnut Creek, CA.
Where does Dr. Andrew Chen practice?
Dr. Andrew Chen practices at 1425 S Main St, Walnut Creek, CA 945965318. Office phone: 3108696386.
What is Dr. Andrew Chen's NPI?
Dr. Andrew Chen's National Provider Identifier (NPI) is 1811039480, issued by NPPES.
Does Dr. Andrew Chen accept Medicare assignment?
Yes. Dr. Andrew Chen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.