Doctor profile · Federal record

Dr. Mary Lien, M.D.

Dermatology Physician (CMS: Dermatology) · Dermatology Physician · Riverside, CA

  • NPI 1417016544
  • Accepts Medicare
  • 34 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
10800 Magnolia Ave
Riverside, CA 925053043
(951) 353-2000
fax (813) 974-2132

Credentials & registration

NPPES · NUCC
NPI registered
December 2006 — 20 yrs on file
Profile last updated
December 2, 2021
Year of graduation
1992 — 34 yrs since
Specialty taxonomy
207N00000X — NUCC code
State licenses (2)
California #A55676 · Florida #ME71253
Medicaid
FL #250460000

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1417016544. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$86
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
PFIZER INC. 1 $70.44
LEO Pharma Inc. 1 $16.00

By nature of payment

Food and Beverage
$86

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,653
Patients
1,110
Total drug cost
$122,068
Drug Type Claims Patients Total cost
Fluorouracil Generic 392 307 $15,689
Calcipotriene Generic 315 254 $25,042
Clobetasol Propionate Generic 147 74 $7,357
Triamcinolone Acetonide Generic 142 102 $7,000
Tacrolimus Generic 140 82 $34,246
Betamethasone Diprop Augmented (Betamethasone/Propylene Glyc) Brand 115 55 $4,521
Ketoconazole Generic 112 62 $3,156
Mupirocin Generic 57 31 $915
Metronidazole Generic 46 24 $916
Retin-A (Tretinoin) Brand 36 18 $1,397

Frequently asked questions

Auto-generated from federal data
What is Dr. Mary Lien's medical specialty?
Dr. Mary Lien practices Dermatology Physician in Riverside, CA.
Where does Dr. Mary Lien practice?
Dr. Mary Lien practices at 10800 Magnolia Ave, Riverside, CA 925053043. Office phone: 9513532000.
What is Dr. Mary Lien's NPI?
Dr. Mary Lien's National Provider Identifier (NPI) is 1417016544, issued by NPPES.
Does Dr. Mary Lien accept Medicare assignment?
Yes. Dr. Mary Lien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.