Doctor profile · Federal record

Dr. Hui-Shan Wen, DO

Hospitalist Physician (CMS: Internal Medicine) · San Rafael, CA

  • NPI 1598843070
  • Accepts Medicare
  • 23 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
99 Montecillo RD
San Rafael, CA 949033308
(415) 444-4885
Mailing address
1800 Harrison St Fl 7
Oakland, CA 946123466

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
December 9, 2021
Year of graduation
2003 — 23 yrs since
Specialty taxonomy
208M00000X — NUCC code
State license (1)
California #20A9083

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1598843070. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$36
Transactions
2
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Virtus Pharmaceuticals LLC 2 $35.72

By nature of payment

Food and Beverage
$36

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
168
Patients
105
Total drug cost
$2,116
Drug Type Claims Patients Total cost
Cefadroxil Generic 21 19 $326
Gabapentin Generic 21 13 $443
Doxycycline Monohydrate Generic 19 19 $211
Torsemide Generic 18 12 $268
Cefuroxime (Cefuroxime Axetil) Brand 16 16 $185
Oxycodone Hcl Generic 15 15 $103
Lisinopril Generic 12 0 $130
Metoprolol Tartrate Generic 12 0 $120
Metronidazole Generic 12 11 $99
Atenolol Generic 11 0 $105

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Hui-Shan Wen's medical specialty?
Dr. Hui-Shan Wen practices Hospitalist Physician in San Rafael, CA.
Where does Dr. Hui-Shan Wen practice?
Dr. Hui-Shan Wen practices at 99 Montecillo RD, San Rafael, CA 949033308. Office phone: 4154444885.
What is Dr. Hui-Shan Wen's NPI?
Dr. Hui-Shan Wen's National Provider Identifier (NPI) is 1598843070, issued by NPPES.
Does Dr. Hui-Shan Wen accept Medicare assignment?
Yes. Dr. Hui-Shan Wen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.