Doctor profile · Federal record

Dr. Esther Guardado, P.A.C

Physician Assistant · Fullerton, CA

  • NPI 1073794152
  • Accepts Medicare
  • 22 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
101 Laguna RD Ste 200
Fullerton, CA 928353634
(714) 992-5350
Additional location
501 S Idaho St, 100
La Habra, CA 90631
(562) 690-0400

Credentials & registration

NPPES · NUCC
NPI registered
November 2007 — 19 yrs on file
Profile last updated
November 25, 2024
Year of graduation
2004 — 22 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
California #17635

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1073794152. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$166
Transactions
3
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
COLOPLAST CORP 2 $137.22
ABBVIE INC. 1 $28.62

By nature of payment

Food and Beverage
$166

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,269
Patients
409
Total drug cost
$19,593
Drug Type Claims Patients Total cost
Metformin Hcl Generic 180 58 $2,678
Amlodipine Besylate Generic 156 49 $1,808
Atorvastatin Calcium Generic 142 50 $3,365
Lisinopril Generic 114 36 $1,421
Losartan Potassium Generic 111 34 $1,704
Levothyroxine Sodium Generic 108 32 $2,133
Lovastatin Generic 61 21 $903
Alprazolam Generic 59 11 $303
Fluticasone Propionate Generic 54 26 $1,043
Simvastatin Generic 54 17 $995

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Esther Guardado's medical specialty?
Dr. Esther Guardado practices Physician Assistant in Fullerton, CA.
Where does Dr. Esther Guardado practice?
Dr. Esther Guardado practices at 101 Laguna RD Ste 200, Fullerton, CA 928353634. Office phone: 7149925350.
What is Dr. Esther Guardado's NPI?
Dr. Esther Guardado's National Provider Identifier (NPI) is 1073794152, issued by NPPES.
Does Dr. Esther Guardado accept Medicare assignment?
Yes. Dr. Esther Guardado accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.