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

Dr. Daniel Joel Koretz, MD

Individual provider Internal Medicine Physician · NPI 1962451344

Dr. Daniel Joel Koretz, MD is an Internal Medicine in Ontario, New York. Graduated from Albany Medical College of Union University in 1969, 57 years ago. Practices with Rochester General Hospital, a 1,197-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
57
Trained at
Albany Medical College of Union University
Licensed in
NY
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

6200 Slocum Rd
Ontario, NY 14519-9102
Phone: (315) 524-2060
Fax: (315) 524-3814
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 106228 (NY)

Record details

NPI number1962451344
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 10, 2006
Last updated in NPPESJuly 8, 2007
Mailing address6200 Slocum Rd, Ontario, NY 14519-9102

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolALBANY MEDICAL COLLEGE OF UNION UNIVERSITY
Graduated 1969 (57 years in practice)
Group practice Rochester General Hospital — 1197 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare