Doctor profile · Federal record
Dr. Gregory Larkin, MD
Emergency Medicine Physician · New Haven, CT
- NPI 1205890084
- 20 yrs on file
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
464 Congress Ave Ste 260
New Haven, CT 065191361
(203) 785-2353
fax (203) 785-4580
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- February 10, 2017
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- Pennsylvania #MD050271L
- Medicaid
- TX #151006701
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1205890084. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
81
Distinct HCPCS
2
Medicare allowed
$12,863
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 57 | 55 | $175 | |
99284 |
Emergency department visit with moderate level of medical decision making | 24 | 24 | $121 |
In context: peer comparison
Among 76 peers in New Haven Emergency Medicine Physician, average services per provider: 72. This provider delivers 1.1× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
49
Patients
48
Total drug cost
$317
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Cephalexin | Generic | 28 | 28 | $275 |
| Prednisone | Generic | 21 | 20 | $42 |
Frequently asked questions
What is Dr. Gregory Larkin's medical specialty?
Dr. Gregory Larkin practices Emergency Medicine Physician in New Haven, CT.
Where does Dr. Gregory Larkin practice?
Dr. Gregory Larkin practices at 464 Congress Ave Ste 260, New Haven, CT 065191361. Office phone: 2037852353.
What is Dr. Gregory Larkin's NPI?
Dr. Gregory Larkin's National Provider Identifier (NPI) is 1205890084, issued by NPPES.
What procedures does Dr. Gregory Larkin commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with moderate level of medical decision making (HCPCS 99284). Source: CMS Medicare Physician & Other Practitioners file.