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

Timothy Earl Sass, MD

Individual provider Internal Medicine Physician · NPI 1265573166

Timothy Earl Sass, MD is an Internal Medicine in Princeton, New Jersey. Graduated from George Washington University School of Medicine in 1984, 42 years ago. Licensed in New Jersey.

Years since qualifying
42
Trained at
George Washington University School of Medicine
Licensed in
NJ
In the registry since
2007
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

281 Witherspoon St Ste 220
Princeton, NJ 08540-3210
Phone: (609) 921-3362
Fax: (609) 921-3584
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 25MA05084900 (NJ)

Record details

NPI number1265573166
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 12, 2007
Last updated in NPPESJanuary 12, 2012
Mailing address281 Witherspoon St, Suite 220, Princeton, NJ 08540-3210

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolGEORGE WASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1984 (42 years in practice)
Accepts Medicare assignment Not indicated

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