Doctor profile · Federal record
Dr. John McCarthy, MD
Emergency Medicine Physician (CMS: Emergency Medicine) · Uniondale, NY
- NPI 1083636807
- Accepts Medicare
- 31 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1345 Rxr Plaza
Uniondale, NY 11556
(516) 783-4600
fax (516) 783-4612
Credentials & registration
- NPI registered
- July 2006 — 20 yrs on file
- Profile last updated
- January 14, 2015
- Year of graduation
- 1995 — 31 yrs since
- Specialty taxonomy
- 207P00000X — NUCC code
- State license (1)
- New York #214648
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1083636807. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
101
Distinct HCPCS
3
Medicare allowed
$14,500
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99284 |
Emergency department visit with moderate level of medical decision making | 42 | 37 | $140 | |
99285 |
Emergency department visit with high level of medical decision making | 30 | 30 | $205 | |
99283 |
Emergency department visit with low level of medical decision making | 29 | 27 | $85 |
In context: peer comparison
Among 3 peers in Uniondale Emergency Medicine Physician, average services per provider: 79. This provider delivers 1.3× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. John McCarthy's medical specialty?
Dr. John McCarthy practices Emergency Medicine Physician in Uniondale, NY.
Where does Dr. John McCarthy practice?
Dr. John McCarthy practices at 1345 Rxr Plaza, Uniondale, NY 11556. Office phone: 5167834600.
What is Dr. John McCarthy's NPI?
Dr. John McCarthy's National Provider Identifier (NPI) is 1083636807, issued by NPPES.
Does Dr. John McCarthy accept Medicare assignment?
Yes. Dr. John McCarthy accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John McCarthy commonly perform?
Top Medicare-reported procedures in 2023: Emergency department visit with moderate level of medical decision making (HCPCS 99284); Emergency department visit with high level of medical decision making (HCPCS 99285); Emergency department visit with low level of medical decision making (HCPCS 99283). Source: CMS Medicare Physician & Other Practitioners file.