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

Individual provider Radiation Oncology Physician · NPI 1699011924

Eugene J Koay, MD, PHD is a Radiation Oncology in Houston, Texas. Graduated from Baylor College of Medicine in 2009, 17 years ago. Practices with Physicians Referral Service, a 2,727-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Texas.

Years since qualifying
17
Trained at
Baylor College of Medicine
Licensed in
TX
In the registry since
2012
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

1220 Holcombe Blvd MS 97
Houston, TX 77030-4004
Phone: (817) 805-2839
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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 BP20038551 (TX)

Record details

NPI number1699011924
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorYes
NPI enumeratedDecember 13, 2012
Last updated in NPPESDecember 13, 2012
Mailing address1220 Holcombe Blvd, Ms 97, Houston, TX 77030-4004

Medicare enrollment

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

Medicare specialtyRADIATION ONCOLOGY
Medical schoolBAYLOR COLLEGE OF MEDICINE
Graduated 2009 (17 years in practice)
Group practice Physicians Referral Service — 2727 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations4 on file with Medicare

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