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

Dr. Jason Kessler, MD

Individual provider Infectious Disease Physician · NPI 1255598850

Dr. Jason Kessler, MD is an Infectious Disease in Morristown, New Jersey. Graduated from State University of New York Downstate Medical Center in 2000, 26 years ago. Practices with Practice Associates Medical Group, a 1,403-clinician group and accepts Medicare assignment. Licensed in New Jersey and New York.

Years since qualifying
26
Trained at
State University of New York Downstate Medical Center
Licensed in
NJ, NY
In the registry since
2008
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

435 S St Ste 210
Morristown, NJ 07960-6422
Phone: (973) 971-7165
Fax: (973) 290-7675
Show map & directions

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

Specialties & licences

Infectious Disease Physician (primary) Taxonomy 207RI0200X · Licence 25MA09835400 (NJ)
Infectious Disease Physician Taxonomy 207RI0200X · Licence 243163 (NY)

Record details

NPI number1255598850
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 21, 2008
Last updated in NPPESSeptember 6, 2022
Certification dateSeptember 6, 2022
Mailing addressPo Box 416457, Boston, MA 02241-6457

Medicare enrollment

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

Medicare specialtyINFECTIOUS DISEASE
Medical schoolSTATE UNIVERSITY OF NEW YORK DOWNSTATE MEDICAL CENTER
Graduated 2000 (26 years in practice)
Group practice Practice Associates Medical Group — 1403 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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