Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Billy Hoon Chang, MD, PHD

Individual provider Pediatrics Physician · NPI 1710921739

Dr. Billy Hoon Chang, MD, PHD is a Pediatric Medicine in Portland, Oregon. Graduated from Ohio State University College of Medicine in 2000, 26 years ago. Practices with University Professional Services, a 1,704-clinician group and accepts Medicare assignment. Licensed in Oregon.

Years since qualifying
26
Trained at
Ohio State University College of Medicine
Licensed in
OR
In the registry since
2006
Specialties on file
2
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

3181 SW Sam Jackson Park Rd Mailcode Cdrcp Doernbecher Childrens Hospital
Portland, OR 97239-3098
Phone: (503) 494-1543
Fax: (503) 494-0714
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatric Hematology & Oncology Physician (primary) Taxonomy 2080P0207X · Licence MD24667 (OR)
Pediatrics Physician Taxonomy 208000000X · Licence MD24667 (OR)

Record details

NPI number1710921739
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedJune 16, 2006
Last updated in NPPESDecember 19, 2017

Medicare enrollment

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

Medicare specialtyPEDIATRIC MEDICINE
Medical schoolOHIO STATE UNIVERSITY COLLEGE OF MEDICINE
Graduated 2000 (26 years in practice)
Group practice University Professional Services — 1704 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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