Doctor profile · Federal record

Dr. PETER GRINSPOON, M.D.

Internal Medicine Physician (CMS: INTERNAL MEDICINE) · CHELSEA, MA

  • NPI 1952560310
  • Accepts Medicare
  • 29 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
151 EVERETT AVENUE, CHELSEA HEALTHCARE CENTER
CHELSEA, MA 021502309
(617) 884-8300
fax (617) 887-4646

Credentials & registration

NPPES · NUCC
NPI registered
June 2008 — 18 yrs on file
Profile last updated
February 14, 2014
Year of graduation
1997 — 29 yrs since
Specialty taxonomy
207R00000X — NUCC code
State license (1)
Massachusetts #P-204412

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1952560310. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
113
Distinct HCPCS
2
Medicare allowed
$15,340
HCPCS Description Services Patients Avg allowed
99215 Established patient office or other outpatient visit, 40-54 minutes 76 57 $151
99214 Established patient office or other outpatient visit, 30-39 minutes 37 35 $104

In context: peer comparison

Among 11 peers in this city , average services per provider: 66. This provider delivers 1.7× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,154
Patients
317
Total drug cost
$152,466
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 220 71 $3,537
Lisinopril Generic 115 38 $1,214
Metformin Hcl Generic 104 29 $1,391
Metoprolol Succinate Generic 100 25 $1,988
Losartan Potassium Generic 76 24 $935
Omeprazole Generic 70 26 $1,826
Amlodipine Besylate Generic 69 25 $870
Fluticasone Propionate Generic 64 20 $1,531
Jardiance (Empagliflozin) Brand 60 17 $77,274
Hydrochlorothiazide Generic 59 18 $219

Hospital affiliations

CMS Hospital Compare