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

John Nick Chafos, MD

Individual provider Emergency Medicine Physician · NPI 1871673830

John Nick Chafos, MD is a Family Practice in Green Brook, New Jersey. Graduated from Tufts University School of Medicine in 1988, 38 years ago. Practices with Family Care PA, a 10-clinician group and accepts Medicare assignment. Licensed in New Jersey.

Years since qualifying
38
Trained at
Tufts University School of Medicine
Licensed in
NJ
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

257 Rt 22 E
Green Brook, NJ 08812
Phone: (732) 968-8832
Fax: (732) 968-2187
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 25MA05399400 (NJ)
Emergency Medicine Physician Taxonomy 207P00000X · Licence 25MA05399400 (NJ)

Record details

NPI number1871673830
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 16, 2006
Last updated in NPPESMarch 29, 2011
Mailing address257 Rt 22 East, Green Brook, NJ 08812

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Also practisesEMERGENCY MEDICINE
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1988 (38 years in practice)
Group practice Family Care Pa — 10 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

Other providers in Green Brook