Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Frank J Kessler, MD

Individual provider Internal Medicine Physician · NPI 1679500086

Frank J Kessler, MD practises Internal Medicine in Brewster, New York. Graduated from Jefferson Medical College of Thomas Jefferson University in 1983, 43 years ago. Offers telehealth. Licensed in Connecticut and New York.

Years since qualifying
43
Trained at
Jefferson Medical College of Thomas Jefferson University
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 →

Claim this listing Report a problem Suggest an edit

Practice location Address checks out

3423 Danbury Rd
Brewster, NY 10509-4513
Phone: (845) 279-7200
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

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

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 165978 (NY)
Internal Medicine Physician Taxonomy 207R00000X · Licence 026499 (CT)

Record details

NPI number1679500086
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 28, 2006
Last updated in NPPESSeptember 17, 2020
Certification dateSeptember 17, 2020

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolJEFFERSON MEDICAL COLLEGE OF THOMAS JEFFERSON UNIVERSITY
Graduated 1983 (43 years in practice)
Accepts Medicare assignment Not indicated
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients598
Services billed 3,505 a service is one billed item, such as a visit, a test or a procedure
Average patient age75

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

Other providers in Brewster