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

Jason Van Tassel, MD

Individual provider Otolaryngology Physician · NPI 1225143084

Jason Van Tassel, MD is an Otolaryngology in Fremont, California. Graduated from Georgetown University School of Medicine in 1997, 29 years ago. Practices with Washington Township Medical Foundation, a 126-clinician group, accepts Medicare assignment and offers telehealth. Licensed in California.

Years since qualifying
29
Trained at
Georgetown University School of Medicine
Licensed in
CA
In the registry since
2006
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

2557 Mowry Ave Ste 30
Fremont, CA 94538-1614
Phone: (510) 248-1590
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Otolaryngology Physician (primary) Taxonomy 207Y00000X · Licence A79305 (CA)

Record details

NPI number1225143084
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedAugust 20, 2006
Last updated in NPPESSeptember 18, 2013

Medicare enrollment

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

Medicare specialtyOTOLARYNGOLOGY
Medical schoolGEORGETOWN UNIVERSITY SCHOOL OF MEDICINE
Graduated 1997 (29 years in practice)
Group practice Washington Township Medical Foundation — 126 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

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