Doctor profile · Federal record

Dr. Gregory Sergeant, PA-C

Physician Assistant · N Chelmsford, MA

  • NPI 1326774563
  • Accepts Medicare
  • 4 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
14 Research Pl
N Chelmsford, MA 018632460
(978) 454-0706

Credentials & registration

NPPES · NUCC
NPI registered
July 2022 — 4 yrs on file
Profile last updated
April 18, 2023
Year of graduation
2022 — 4 yrs since
Specialty taxonomy
363A00000X — NUCC code

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1326774563. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
35
Distinct HCPCS
2
Medicare allowed
$6,292
HCPCS Description Services Patients Avg allowed
27447 Replacement of knee joint, both sides of knee 23 22 $191
29827 Repair of shoulder rotator cuff using an endoscope 12 12 $159

In context: peer comparison

Among 1 peers in this city , average services per provider: 17. This provider delivers 2.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$256
Transactions
2
Manufacturers
1
Payer (manufacturer) Industry Txns Amount
Pacira Pharmaceuticals Incorporated 2 $255.90

By nature of payment

Food and Beverage
$256

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
425
Patients
232
Total drug cost
$2,323
Drug Type Claims Patients Total cost
Oxycodone Hcl Generic 83 46 $463
Tramadol Hcl Generic 78 55 $195
Gabapentin Generic 72 50 $417
Hydromorphone Hcl Generic 41 23 $256
Celecoxib Generic 37 12 $417
Alprazolam Generic 29 16 $129
Amoxicillin Generic 26 17 $37
Meloxicam Generic 18 13 $34
Tizanidine Hcl Generic 18 0 $215
Clindamycin Hcl Generic 12 0 $75

Frequently asked questions

Auto-generated from federal data
What is Dr. Gregory Sergeant's medical specialty?
Dr. Gregory Sergeant practices Physician Assistant in N Chelmsford, MA.
Where does Dr. Gregory Sergeant practice?
Dr. Gregory Sergeant practices at 14 Research Pl, N Chelmsford, MA 018632460. Office phone: 9784540706.
What is Dr. Gregory Sergeant's NPI?
Dr. Gregory Sergeant's National Provider Identifier (NPI) is 1326774563, issued by NPPES.
Does Dr. Gregory Sergeant accept Medicare assignment?
Yes. Dr. Gregory Sergeant accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Sergeant commonly perform?
Top Medicare-reported procedures in 2023: Replacement of knee joint, both sides of knee (HCPCS 27447); Repair of shoulder rotator cuff using an endoscope (HCPCS 29827). Source: CMS Medicare Physician & Other Practitioners file.