Doctor profile · Federal record

Dr. Amanda Diffin, PA-C

Physician Assistant · Physician Assistant · Leominster, MA

  • NPI 1710547385
  • Accepts Medicare
  • 7 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
100 Hospital RD Ste 4
Leominster, MA 014532253
(978) 514-6300
Additional location
87 N Main St
Leominster, MA 014535507
(978) 534-8701
Mailing address
87 N Main St
Leominster, MA 014535507

Credentials & registration

NPPES · NUCC
NPI registered
June 2019 — 7 yrs on file
Profile last updated
June 27, 2024
Year of graduation
2019 — 7 yrs since
Specialty taxonomy
363A00000X — NUCC code
State license (1)
Massachusetts #PA7139

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1710547385. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$312
Transactions
16
Manufacturers
11
Payer (manufacturer) Industry Txns Amount
Pfizer INC. 2 $40.00
Corium, LLC 4 $39.19
Exact Sciences Corporation 2 $37.15
Astellas Pharma US INC 1 $32.99
Axsome Therapeutics, INC. 1 $30.08
Janssen Pharmaceuticals, INC 1 $28.01
Novo Nordisk INC 1 $25.94
Hologic Sales and Service, LLC 1 $25.76
Lilly USA, LLC 1 $19.40
Lundbeck LLC 1 $17.77
Phadia US INC. 1 $15.86

By nature of payment

Food and Beverage
$312

Frequently asked questions

Auto-generated from federal data
What is Dr. Amanda Diffin's medical specialty?
Dr. Amanda Diffin practices Physician Assistant in Leominster, MA.
Where does Dr. Amanda Diffin practice?
Dr. Amanda Diffin practices at 100 Hospital RD Ste 4, Leominster, MA 014532253. Office phone: 9785146300.
What is Dr. Amanda Diffin's NPI?
Dr. Amanda Diffin's National Provider Identifier (NPI) is 1710547385, issued by NPPES.
Does Dr. Amanda Diffin accept Medicare assignment?
Yes. Dr. Amanda Diffin accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.