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
- Primary practice
-
151 Everett Avenue, Chelsea Healthcare Center
Chelsea, MA 021502309
(617) 884-8300
fax (617) 887-4646
Credentials & registration
- 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
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
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 Chelsea Internal Medicine Physician, average services per provider: 66. This provider delivers 1.7× the peer median.Medicare Part D · 2023
Top prescriptions
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
Frequently asked questions
What is Dr. Peter Grinspoon's medical specialty?
Dr. Peter Grinspoon practices Internal Medicine Physician in Chelsea, MA.
Where does Dr. Peter Grinspoon practice?
Dr. Peter Grinspoon practices at 151 Everett Avenue, Chelsea, MA 021502309. Office phone: 6178848300.
What is Dr. Peter Grinspoon's NPI?
Dr. Peter Grinspoon's National Provider Identifier (NPI) is 1952560310, issued by NPPES.
Does Dr. Peter Grinspoon accept Medicare assignment?
Yes. Dr. Peter Grinspoon accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Peter Grinspoon commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99215); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.