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

Nicholas Junhyuk Ahn, MD

Individual provider Student in an Organized Health Care Education/Training Program · NPI 1912341447

Nicholas Junhyuk Ahn, MD is a Colorectal Surgery (Proctology) in Stony Brook, New York. Graduated from Pennsylvania State University College of Medicine in 2013, 13 years ago. Practices with Stony Brook Surgical Associates University Faculty Practice Corporati, a 102-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in New York.

Years since qualifying
13
Trained at
Pennsylvania State University College of Medicine
Licensed in
NY
In the registry since
2013
Specialties on file
3
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

Health Science Tower Level 19 Rm 030
Stony Brook, NY 11794-3412
Phone: (631) 444-1791
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 47 New Scotland Ave, Albany, NY 12208-3412 — (518) 262-5374

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 306605 (NY)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X · Licence 63283
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X

Record details

NPI number1912341447
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 26, 2013
Last updated in NPPESSeptember 7, 2021
Certification dateSeptember 7, 2021
Mailing addressHealth Science Tower Level 18, Room 051, Stony Brook, NY 11794-8191

Medicare enrollment

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

Medicare specialtyCOLORECTAL SURGERY (PROCTOLOGY)
Medical schoolPENNSYLVANIA STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2013 (13 years in practice)
Group practice Stony Brook Surgical Associates University Faculty Practice Corporati — 102 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Other providers in Stony Brook