John J. Byun, MD
Psychiatry Physician · McKinney, TX
John J. Byun, MD is a psychiatry physician with a practice address in McKinney, Texas, and NPI 1932763620, issued on Apr 28, 2019. Check the license (Texas T4716, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- John J. Byun
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- T4716 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1515 Heritage Dr, McKinney, TX 75069
- Phone
- (972) 562-0190
- Enumerated
- Apr 28, 2019
- Record last updated
- Mar 10, 2026
- Medicare enrollment
- Enrolled (PECOS I20221107000363); accepts Medicare assignment
- Medical or professional school
- Boston University School Of Medicine, 2019
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 3,318 in Texas → Look up another NPI →
Also registered at 1515 Heritage Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Florence Abioye, DNP, APRN, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1245730753
- Jennifer AlvaradoPediatric Occupational Therapist1427241561
- Alexandria Anderson, LCSWClinical Social Worker1558868448
- Issac Antony, APRNPsychiatric/Mental Health Nurse Practitioner1598633737
- Yogita Bapat, OTOccupational Therapist1831369586
- Favour BartholomewMental Health Counselor1942143722
Verify John J. Byun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license T4716Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average psychiatry physician in 2024
121 Medicare Part D claims for 29 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Trazodone Hcl14 claims
- Lamotrigine13 claims
- Sertraline Hcl12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $81.79
3 payments; by number, the most common kind was food and beverage; the largest payer was Alkermes, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Collin County Mental Health Mental Retardation CenterMcKinney, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John J. Byun among 3,318 psychiatry physician records in Texas
John J. Byun, MD is one of 3,318 psychiatry physician records with a practice address in Texas. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2019, is newer than 82% of them.
- NPI issued2019 · 82% of these records are older, 15% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 45% of these records are
- Graduated2019 · median 2006 among the 1,481 with a school on file
- Record last updated2026 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Psychiatry Physician providers in Texas
There are 3,318 psychiatry physician records in Texas.
All 3,318 in Texas → Every provider in McKinney → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Bashir Ahmed, M.D.Fairview, TX 750691659537827
- Maximus Anitube, M.D.McKinney, TX 750691316250483
- Cassandra Boduch, MDMcKinney, TX 750691083177497
- Asim Farooqui, MDMcKinney, TX 750691134290471
- Bradly Keller, MDMcKinney, TX 750691265462378
- Darren Meyer, MDMcKinney, TX 750691467460204
- Praveen Moolamalla, MDMcKinney, TX 750691114935954
- Gayatri Singh, M.D.McKinney, TX 750691396880316
Common questions
What is John J. Byun, MD's NPI number?
John J. Byun, MD's National Provider Identifier (NPI) is 1932763620, issued on Apr 28, 2019. An NPI identifies a provider in billing; it is not a license.
Where is John J. Byun, MD located?
The NPPES record lists a practice address at 1515 Heritage Dr, McKinney, TX, 75069. Phone: (972) 562-0190. Providers update this record themselves, so call before visiting.
How can I verify John J. Byun, MD's license?
NPPES lists Texas license number T4716, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does John J. Byun, MD prescribe under Medicare Part D?
In 2024, John J. Byun, MD had 121 Medicare Part D claims for 29 beneficiaries; the average among psychiatry physician prescribers was 1,000. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.