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

Harvey Lee Katzeff, MD

Individual provider Endocrinology, Diabetes & Metabolism Physician · NPI 1346416187

Harvey Lee Katzeff, MD is an Endocrinology in Mahopac, New York. Graduated from State University of New York Downstate Medical Center in 1976, 50 years ago. Practices as a sole proprietor. Licensed in New York.

Years since qualifying
50
Trained at
State University of New York Downstate Medical Center
Licensed in
NY
In the registry since
2008
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

44 Jackson Rd
Mahopac, NY 10541-3116
Phone: (914) 262-7900
Fax: (925) 307-5216
Show map & directions

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

Specialties & licences

Endocrinology, Diabetes & Metabolism Physician (primary) Taxonomy 207RE0101X · Licence 150143 (NY)

Record details

NPI number1346416187
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 1, 2008
Last updated in NPPESNovember 21, 2022
Certification dateApril 12, 2022
Mailing address44 Jackson Rd, Mahopac, NY 10541-3116

Medicare enrollment

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

Medicare specialtyENDOCRINOLOGY
Also practisesINTERNAL MEDICINE
Medical schoolSTATE UNIVERSITY OF NEW YORK DOWNSTATE MEDICAL CENTER
Graduated 1976 (50 years in practice)
Accepts Medicare assignment Not indicated