Doctor profile · Federal record

Dr. Stacy Zambrano

Internal Medicine Physician (CMS: Internal Medicine) · Concord, CA

  • NPI 1992094171
  • Accepts Medicare
  • 15 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
2000 Sierra Road
Concord, CA 94518
(925) 363-2000
Additional location
4150 V St # 1110
Sacramento, CA 958171460
(619) 370-3316

Credentials & registration

NPPES · NUCC
NPI registered
March 2011 — 15 yrs on file
Profile last updated
January 4, 2023
Year of graduation
2011 — 15 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
California #A125232

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1992094171. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$21
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Hologic Sales and Service, LLC 1 $20.79

By nature of payment

Food and Beverage
$21

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
670
Patients
323
Total drug cost
$13,561
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 137 72 $3,398
Amlodipine Besylate Generic 82 42 $1,649
Levothyroxine Sodium Generic 65 31 $1,605
Metformin Hcl Generic 58 28 $825
Losartan Potassium Generic 47 23 $901
Lisinopril Generic 44 24 $1,237
Trazodone Hcl Generic 37 20 $715
Hydrochlorothiazide Generic 30 16 $352
Gabapentin Generic 29 18 $683
Alendronate Sodium Generic 28 13 $340

Frequently asked questions

Auto-generated from federal data
What is Dr. Stacy Zambrano's medical specialty?
Dr. Stacy Zambrano practices Internal Medicine Physician in Concord, CA.
Where does Dr. Stacy Zambrano practice?
Dr. Stacy Zambrano practices at 2000 Sierra Road, Concord, CA 94518. Office phone: 9253632000.
What is Dr. Stacy Zambrano's NPI?
Dr. Stacy Zambrano's National Provider Identifier (NPI) is 1992094171, issued by NPPES.
Does Dr. Stacy Zambrano accept Medicare assignment?
Yes. Dr. Stacy Zambrano accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.