Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Gregory G Ewing, PA

Individual provider Physician Assistant · NPI 1821278433

Gregory G Ewing, PA is a Physician Assistant in Somerville, New Jersey. Qualified in 1997, 29 years ago. Practices with Wellspan Medical Group, a 2,342-clinician group and accepts Medicare assignment. Licensed in New Jersey.

Years since qualifying
29
Licensed in
NJ
In the registry since
2007
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

110 Rehill Ave
Somerville, NJ 08876-2519
Phone: (908) 685-2200
Fax: (732) 923-2272
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Physician Assistant (primary) Taxonomy 363A00000X · Licence 25MP00029600 (NJ)

Record details

NPI number1821278433
Entity typeIndividual (Type 1)
GenderMale
Credentials PA
Sole proprietorNo
NPI enumeratedNovember 12, 2007
Last updated in NPPESJune 28, 2024
Certification dateJune 28, 2024

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 1997 (29 years in practice)
Group practice Wellspan Medical Group — 2342 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations7 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 patients30
Services billed 31 a service is one billed item, such as a visit, a test or a procedure
Average patient age76

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.

Colleagues at Wellspan Medical Group

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 2342 clinicians in the practice; 12 are shown here.

Other providers in Somerville