Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Alan Isaac Nemeth, DO

Individual provider Emergency Medicine Physician · NPI 1023051497

Alan Isaac Nemeth, DO practises Emergency Medicine in Patchogue, New York. Qualified in 1991, 35 years ago. Practices with South Nassau Physician Group PC, an 18-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
35
Licensed in
NY
In the registry since
2006
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

101 Hospital Road Medical Ctr
Patchogue, NY 11772 Not confirmed with CMS for 19 years — call before visiting
Phone: (631) 687-2953
Fax: (610) 617-6280
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Emergency Medicine Physician (primary) Taxonomy 207P00000X · Licence 191299 (NY)

Record details

NPI number1023051497
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedJune 14, 2006
Last updated in NPPESJuly 8, 2007

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Medical schoolOTHER
Graduated 1991 (35 years in practice)
Group practice South Nassau Physician Group Pc — 18 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients411
Services billed 452 a service is one billed item, such as a visit, a test or a procedure
Average patient age78

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Mount Sinai South Nassau Hospital · Oceanside, NY

Colleagues at South Nassau Physician Group PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 18 clinicians in the practice; 12 are shown here.

Other providers in Patchogue