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

Derek J Hersey, PA

Individual provider Physician Assistant · NPI 1114981289

Derek J Hersey, PA is a Physician Assistant in Boston, Massachusetts. Qualified in 1997, 29 years ago. Practices with Reliant Medical Group Inc, a 638-clinician group and accepts Medicare assignment. Licensed in Massachusetts.

Years since qualifying
29
Licensed in
MA
In the registry since
2006
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

133 Brookline Ave
Boston, MA 02215-3904
Phone: (617) 421-2194
Fax: (617) 421-2192
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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 1256 (MA)
Medical Physician Assistant Taxonomy 363AM0700X · Licence 1256 (MA)

Record details

NPI number1114981289
Entity typeIndividual (Type 1)
GenderMale
Credentials PA
Sole proprietorNo
NPI enumeratedApril 14, 2006
Last updated in NPPESJanuary 8, 2021
Certification dateJanuary 8, 2021

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 Reliant Medical Group Inc — 638 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 on file with Medicare

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