Doctor profile · Federal record

Dr. Esther Loya, P.A.C

Medical Physician Assistant (CMS: Physician Assistant) · Montclair, CA

  • NPI 1548557309
  • Accepts Medicare
  • 16 yrs in practice
  • Female
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
8891 Central Ave
Montclair, CA 917631618
(909) 297-3361
fax (909) 621-1397
Mailing address
812 W la Deney Dr
Ontario, CA 917621222

Credentials & registration

NPPES · NUCC
NPI registered
June 2011 — 15 yrs on file
Profile last updated
November 17, 2021
Year of graduation
2010 — 16 yrs since
Specialty taxonomy
363AM0700X — NUCC code
State license (1)
California #PA 21261

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1548557309. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$20
Transactions
1
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Hologic Sales and Service, LLC 1 $19.58

By nature of payment

Food and Beverage
$20

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
558
Patients
526
Total drug cost
$6,314
Drug Type Claims Patients Total cost
Prednisone Generic 95 93 $569
Cephalexin Generic 84 82 $854
Azithromycin Generic 80 80 $637
Montelukast Sodium Generic 43 43 $473
Albuterol Sulfate Hfa (Albuterol Sulfate) Brand 34 32 $570
Ciprofloxacin Hcl Generic 31 31 $285
Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) Brand 31 30 $215
Tramadol Hcl Generic 31 31 $184
Amoxicillin Generic 30 29 $308
Ondansetron Odt (Ondansetron) Brand 19 17 $160

Frequently asked questions

Auto-generated from federal data
What is Dr. Esther Loya's medical specialty?
Dr. Esther Loya practices Medical Physician Assistant in Montclair, CA.
Where does Dr. Esther Loya practice?
Dr. Esther Loya practices at 8891 Central Ave, Montclair, CA 917631618. Office phone: 9092973361.
What is Dr. Esther Loya's NPI?
Dr. Esther Loya's National Provider Identifier (NPI) is 1548557309, issued by NPPES.
Does Dr. Esther Loya accept Medicare assignment?
Yes. Dr. Esther Loya accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.