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

Jonathon Chastek, DO

Individual provider Medical Physician Assistant · NPI 1255868063

Jonathon Chastek, DO is a Medical Physician Assistant in Worcester, Massachusetts. Licensed in Pennsylvania. Registered with an NPI since 2017.

Licensed in
PA
In the registry since
2017
Specialties on file
2
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

55 Lake Ave N
Worcester, MA 01655-0002
Phone: (508) 334-1131
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Student in an Organized Health Care Education/Training Program (primary) Taxonomy 390200000X
Medical Physician Assistant Taxonomy 363AM0700X · Licence MA058752 (PA)

Record details

NPI number1255868063
Entity typeIndividual (Type 1)
GenderMale
Credentials DO
Sole proprietorNo
NPI enumeratedMay 11, 2017
Last updated in NPPESMarch 28, 2024
Certification dateMarch 28, 2024
Mailing address55 Lake Ave N, Worcester, MA 01655-0002

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