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

Individual provider Psychiatry Physician · NPI 1932763620

John J Byun, MD is a Psychiatry in McKinney, Texas. Graduated from Boston University School of Medicine in 2019, 7 years ago. Practices with Collin County Mental Health Mental Retardation Center, a 22-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
7
Trained at
Boston University School of Medicine
Licensed in
TX
In the registry since
2019
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

1515 Heritage Dr
McKinney, TX 75069-3256
Phone: (972) 562-0190
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence T4716 (TX)

Record details

NPI number1932763620
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedApril 28, 2019
Last updated in NPPESMarch 10, 2026
Certification dateMarch 10, 2026
Mailing address6800 Park Ten Blvd Ste 200s, San Antonio, TX 78213-4293

Medicare enrollment

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

Medicare specialtyPSYCHIATRY
Medical schoolBOSTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 2019 (7 years in practice)
Group practice Collin County Mental Health Mental Retardation Center — 22 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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