Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Alyssa Korenstein, MD

Individual provider Family Medicine Physician · NPI 1801320825

Alyssa Korenstein, MD is registered under Family Practice in New York, New York. Graduated from University of Arizona College of Medicine in 2017, 9 years ago. Practices with One Medical of Ny PC, a 72-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arizona and New York.

Years since qualifying
9
Trained at
University of Arizona College of Medicine
Licensed in
AZ, NY
In the registry since
2017
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

25 Hudson St
New York, NY 10013-3802
Phone: (888) 663-6331
Fax: (415) 252-7176
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1300 N 12th St, Phoenix, AZ 85006-2848 — (602) 839-5271

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 303024 (NY)
Family Medicine Physician Taxonomy 207Q00000X · Licence 0000000 (AZ)

Record details

NPI number1801320825
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 17, 2017
Last updated in NPPESMarch 19, 2025
Certification dateMarch 19, 2025

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolUNIVERSITY OF ARIZONA COLLEGE OF MEDICINE
Graduated 2017 (9 years in practice)
Group practice One Medical Of Ny Pc — 72 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 patients18
Services billed 68 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

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.

Colleagues at One Medical of Ny PC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 72 clinicians in the practice; 12 are shown here.

Other providers in New York