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

Dr. Gary C Pien, MD, PHD

Individual provider Allergy & Immunology Physician · NPI 1841404530

Dr. Gary C Pien, MD, PHD is an Allergy/Immunology in Berkeley Heights, New Jersey. Qualified in 2003, 23 years ago. Practices with Summit Medical Group PA, a 1,205-clinician group, accepts Medicare assignment and offers telehealth. Licensed in New Jersey.

Years since qualifying
23
Licensed in
NJ
In the registry since
2007
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

See every abbreviation used in this directory →

Practice location Address checks out

1 Diamond Hill Rd
Berkeley Heights, NJ 07922-2104
Phone: (908) 273-4300
Show map & directions

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

Specialties & licences

Allergy & Immunology Physician (primary) Taxonomy 207K00000X · Licence 25MA08470800 (NJ)
Pediatrics Physician Taxonomy 208000000X · Licence 25MA08470800 (NJ)

Record details

NPI number1841404530
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedMay 10, 2007
Last updated in NPPESFebruary 18, 2026
Certification dateFebruary 18, 2026
Mailing address1 Diamond Hill Rd, Berkeley Heights, NJ 07922-2104

Medicare enrollment

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

Medicare specialtyALLERGY/IMMUNOLOGY
Medical schoolOTHER
Graduated 2003 (23 years in practice)
Group practice Summit Medical Group Pa — 1205 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services