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

Dr. Herbert Gretz III, MD

Individual provider Gynecologic Oncology Physician · NPI 1376593301

Dr. Herbert Gretz III, MD is a Gynecological Oncology in Purchase, New York. Graduated from New York Medical College in 1986, 40 years ago. Practices with Westchester Medical Group, PC, a 410-clinician group and accepts Medicare assignment. Licensed in Connecticut and New York.

Years since qualifying
40
Trained at
New York Medical College
Licensed in
CT, NY
In the registry since
2006
Specialties on file
2
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

3030 Westchester Ave
Purchase, NY 10577-2574
Phone: (914) 305-2730
Fax: (914) 305-2731
Show map & directions

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

Specialties & licences

Gynecologic Oncology Physician (primary) Taxonomy 207VX0201X · Licence 174596-1 (NY)
Gynecologic Oncology Physician Taxonomy 207VX0201X · Licence 033383 (CT)

Record details

NPI number1376593301
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 11, 2006
Last updated in NPPESJanuary 22, 2016

Medicare enrollment

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

Medicare specialtyGYNECOLOGICAL ONCOLOGY
Also practisesOBSTETRICS/GYNECOLOGY
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 1986 (40 years in practice)
Group practice Westchester Medical Group, P.C — 410 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare