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

Dr. Gregory S Henderson, MD, PHD

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1407804859

Dr. Gregory S Henderson, MD, PHD is a Pathology in Warwick, New York. Graduated from Vanderbilt University School of Medicine in 1993, 33 years ago. Practices with Icahn School of Medicine at Mount Sinai, a 2,791-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
33
Trained at
Vanderbilt University School of Medicine
Licensed in
NY
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

30 Wawayanda Ct
Warwick, NY 10990-3346
Phone: (206) 790-2318
Show map & directions

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

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence 273297 (NY)

Record details

NPI number1407804859
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedMay 5, 2006
Last updated in NPPESJune 22, 2026
Certification dateJune 22, 2026

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolVANDERBILT UNIVERSITY SCHOOL OF MEDICINE
Graduated 1993 (33 years in practice)
Group practice Icahn School Of Medicine At Mount Sinai — 2791 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount