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

Jaehyun Byun, MD

Individual provider Family Medicine Physician · NPI 1881824225

Jaehyun Byun, MD is a Family Practice in Holyoke, Massachusetts. Graduated from Perelman School of Med at the University of Pennsylvania in 2009, 17 years ago. Practices with Holyoke Medical Center Inc, a 201-clinician group and accepts Medicare assignment. Licensed in California and Massachusetts.

Years since qualifying
17
Trained at
Perelman School of Med at the University of Pennsylvania
Licensed in
CA, MA
In the registry since
2009
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

230 Maple St
Holyoke, MA 01040-5144
Phone: (413) 420-2200
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 265898 (MA)
Family Medicine Physician Taxonomy 207Q00000X · Licence A114852 (CA)

Record details

NPI number1881824225
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 20, 2009
Last updated in NPPESAugust 17, 2016

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolPERELMAN SCHOOL OF MED AT THE UNIVERSITY OF PENNSYLVANIA
Graduated 2009 (17 years in practice)
Group practice Holyoke Medical Center Inc — 201 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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