Doctor profile · Federal record
Dr. Daniel Greenstein, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Emergency Medicine Physician · New Haven, CT
- NPI 1053761288
- Accepts Medicare
- MIPS 83.7 / 100 · 2023
- 10 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
464 Congress Ave
New Haven, CT 065191361
(203) 688-4242
Credentials & registration
- NPI registered
- June 2016 — 10 yrs on file
- Profile last updated
- June 27, 2024
- Year of graduation
- 2016 — 10 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State licenses (2)
- Connecticut #78707 · Missouri #2019017049
- Medicaid
- MO #200061787
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1053761288. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
122
Distinct HCPCS
3
Medicare allowed
$20,029
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99285 |
Emergency department visit with high level of medical decision making | 77 | 75 | $172 | |
99284 |
Emergency department visit with moderate level of medical decision making | 28 | 28 | $118 | |
99291 |
Critical care, first 30-74 minutes | 17 | 17 | $206 |
In context: peer comparison
Among 76 peers in New Haven Emergency Medicine Physician, average services per provider: 72. This provider delivers 1.7× the peer median.Frequently asked questions
What is Dr. Daniel Greenstein's medical specialty?
Dr. Daniel Greenstein practices Emergency Medicine Physician in New Haven, CT.
Where does Dr. Daniel Greenstein practice?
Dr. Daniel Greenstein practices at 464 Congress Ave, New Haven, CT 065191361. Office phone: 2036884242.
What is Dr. Daniel Greenstein's NPI?
Dr. Daniel Greenstein's National Provider Identifier (NPI) is 1053761288, issued by NPPES.
Does Dr. Daniel Greenstein accept Medicare assignment?
Yes. Dr. Daniel Greenstein accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Daniel Greenstein 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); Critical care (HCPCS 99291). Source: CMS Medicare Physician & Other Practitioners file.