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

Individual provider Physician Assistant · NPI 1922332105

Margaret J. Chou, PA is a Physician Assistant in Somerville, New Jersey. Qualified in 2009, 17 years ago. Practices with Rwjbh Emergency Medicine Associates, LLC, a 807-clinician group and accepts Medicare assignment. Licensed in New Jersey.

Years since qualifying
17
Licensed in
NJ
In the registry since
2009
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 Somerset Medical Ctr
Somerville, NJ 08876-2519
Phone: (908) 685-2200
Fax: (973) 251-1109
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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 25MP00220500 (NJ)

Record details

NPI number1922332105
Entity typeIndividual (Type 1)
GenderFemale
Credentials PA
Sole proprietorNo
NPI enumeratedSeptember 22, 2009
Last updated in NPPESAugust 13, 2019

Medicare enrollment

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

Medicare specialtyPHYSICIAN ASSISTANT
Medical schoolOTHER
Graduated 2009 (17 years in practice)
Group practice Rwjbh Emergency Medicine Associates, Llc — 807 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 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 patients179
Services billed 258 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 Rwjbh Emergency Medicine Associates, LLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 807 clinicians in the practice; 12 are shown here.

Other providers in Somerville