John Louis McCarthy, MD
Emergency Medicine Physician · Uniondale, NY
John Louis McCarthy, MD is an emergency medicine physician with a practice address in Uniondale, New York, and NPI 1083636807, issued on Jul 24, 2006. Check the license (New York 214648, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- John Louis McCarthy
- Credential
- MD
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 214648 NY
Self-reported in NPPES; status is on the state search - Practice location
- 1345 Rxr Plaza, Uniondale, NY 11556
- Phone
- (516) 783-4600
- Enumerated
- Jul 24, 2006
- Record last updated
- Jan 14, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (516) 783-4612
- Medicare enrollment
- Enrolled (PECOS I20070922000153); accepts Medicare assignment
- Medical or professional school
- Howard University College Of Medicine, 1995
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 5,025 in New York → Look up another NPI →
Verify John Louis McCarthy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 214648Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average emergency medicine physician in 2024
77 Medicare Part D claims for 58 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Ibuprofen13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Interfaith Emergency Medicine PCBrooklyn, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Louis McCarthy among 5,025 emergency medicine physician records in New York
John Louis McCarthy, MD is one of 5,025 emergency medicine physician records with a practice address in New York. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 3% of them.
- NPI issued2006 · 3% of these records are older, 72% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1995 · median 2013 among the 3,232 with a school on file
- Record last updated2015 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
6 emergency medicine physician records list a practice address in Uniondale
They are 6 of the 411 NPPES records with a practice address in Uniondale, and 5,025 emergency medicine physician records in New York.
All 5,025 in New York → Every provider in Uniondale → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Marta Dedza, D.OUniondale, NY 115561912212218
- Tayna Labissiere, PAUniondale, NY 115561902402050
- Jaison Medayil, DOUniondale, NY 115561023638913
- Melanie O'Neill, MDUniondale, NY 115561053483917
- Michael PouloseUniondale, NY 115561740668227
- Elizabeth Anderson, DOEast Meadow, NY 115541053930750
- Laleh Botesazan, DOEast Meadow, NY 115541679033013
- Salvatore Caiola, D.O.East Meadow, NY 115541801329438
Common questions
What is John Louis McCarthy, MD's NPI number?
John Louis McCarthy, MD's National Provider Identifier (NPI) is 1083636807, issued on Jul 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Louis McCarthy, MD located?
The NPPES record lists a practice address at 1345 Rxr Plaza, Uniondale, NY, 11556. Phone: (516) 783-4600. Providers update this record themselves, so call before visiting.
How can I verify John Louis McCarthy, MD's license?
NPPES lists New York license number 214648, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John Louis McCarthy, MD prescribe under Medicare Part D?
In 2024, John Louis McCarthy, MD had 77 Medicare Part D claims for 58 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.