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

Joseph Arthur Grzegorski, PA

Individual provider Physician Assistant · NPI 1114688520

Joseph Arthur Grzegorski, PA is a Physician Assistant in Newark, New York. Qualified in 2022, 4 years ago. Practices with Dartmouth-Hitchcock Clinic, a 1,430-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
4
Licensed in
NY
In the registry since
2022
Specialties on file
2
What do these letters mean?
PA — Physician Assistant
A licensed clinician who examines, diagnoses and treats under a physician's supervision.

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Practice location Address checks out

1200 Driving Park Ave
Newark, NY 14513-1090
Phone: (860) 391-5333
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Medical Physician Assistant (primary) Taxonomy 363AM0700X · Licence 028218 (NY)
Physician Assistant Taxonomy 363A00000X

Record details

NPI number1114688520
Entity typeIndividual (Type 1)
GenderMale
Credentials PA
Sole proprietorNo
NPI enumeratedJanuary 7, 2022
Last updated in NPPESOctober 19, 2022
Certification dateOctober 19, 2022

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2022 (4 years in practice)
Group practice Dartmouth-Hitchcock Clinic — 1430 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

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 patients118
Services billed 301 a service is one billed item, such as a visit, a test or a procedure
Average patient age77

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.

Colleagues at Dartmouth-Hitchcock Clinic

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1430 clinicians in the practice; 12 are shown here.

Other providers in Newark