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

Dr. David Jaihun Byun, MD

Individual provider Radiation Oncology Physician · NPI 1619409802

Dr. David Jaihun Byun, MD is a Radiation Oncology in Hartford, Connecticut. Qualified in 2017, 9 years ago. Practices with Hartford Radiation Oncology Associates PC, an 11-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Connecticut and New York.

Years since qualifying
9
Licensed in
CT, NY
In the registry since
2017
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

80 Seymour St
Hartford, CT 06106-3315
Phone: (860) 545-2803
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Radiation Oncology Physician (primary) Taxonomy 2085R0001X · Licence 80229 (CT)
Radiation Oncology Physician Taxonomy 2085R0001X · Licence 314461 (NY)

Record details

NPI number1619409802
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMarch 28, 2017
Last updated in NPPESFebruary 25, 2025
Certification dateFebruary 25, 2025

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolOTHER
Graduated 2017 (9 years in practice)
Group practice Hartford Radiation Oncology Associates Pc — 11 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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