Doctor profile · Federal record

Dr. John Chen, M.D.

Ophthalmology Physician (CMS: Ophthalmology) · Boston, MA

  • NPI 1366627879
  • Accepts Medicare
  • 20 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
750 Washington St, Tufts-Nemc #450
Boston, MA 021111526
(617) 636-4600

Credentials & registration

NPPES · NUCC
NPI registered
January 2008 — 18 yrs on file
Profile last updated
December 15, 2021
Year of graduation
2006 — 20 yrs since
Specialty taxonomy
207W00000X — NUCC code
State license (1)
Massachusetts #233230

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1366627879. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$110
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Abbott Laboratories 1 $73.58
Alcon Vision LLC 1 $36.53

By nature of payment

Food and Beverage
$110

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,235
Patients
1,472
Total drug cost
$172,383
Drug Type Claims Patients Total cost
Latanoprost Generic 847 389 $12,367
Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) Brand 657 260 $16,869
Prednisolone Acetate Generic 469 211 $25,211
Brimonidine Tartrate Generic 352 156 $9,811
Timolol Maleate Generic 172 76 $3,825
Dorzolamide Hcl Generic 122 50 $3,435
Tafluprost (Tafluprost/Pf) Brand 104 28 $18,486
Brinzolamide Generic 98 31 $26,463
Moxifloxacin (Moxifloxacin Hcl) Brand 95 85 $966
Diclofenac Sodium Generic 74 56 $1,462

Frequently asked questions

Auto-generated from federal data
What is Dr. John Chen's medical specialty?
Dr. John Chen practices Ophthalmology Physician in Boston, MA.
Where does Dr. John Chen practice?
Dr. John Chen practices at 750 Washington St, Boston, MA 021111526. Office phone: 6176364600.
What is Dr. John Chen's NPI?
Dr. John Chen's National Provider Identifier (NPI) is 1366627879, issued by NPPES.
Does Dr. John Chen accept Medicare assignment?
Yes. Dr. John Chen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.