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

Onechang William Lee, MD

Individual provider Neurological Surgery Physician · NPI 1881838662

Onechang William Lee, MD is a Neurosurgery in Fountain Valley, California. Graduated from Albany Medical College of Union University in 2008, 18 years ago. Practices with Tien T Nguyen MD Inc, a 6-clinician group and accepts Medicare assignment. Licensed in California and Illinois.

Years since qualifying
18
Trained at
Albany Medical College of Union University
Licensed in
CA, IL
In the registry since
2009
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

11190 Warner Ave Ste 305
Fountain Valley, CA 92708-4019
Phone: (714) 433-2000
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neurological Surgery Physician (primary) Taxonomy 207T00000X · Licence A143259 (CA)
Neurological Surgery Physician Taxonomy 207T00000X · Licence 125-055125 (IL)

Record details

NPI number1881838662
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedApril 24, 2009
Last updated in NPPESOctober 21, 2016

Medicare enrollment

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

Medicare specialtyNEUROSURGERY
Medical schoolALBANY MEDICAL COLLEGE OF UNION UNIVERSITY
Graduated 2008 (18 years in practice)
Group practice Tien T Nguyen M.D. Inc. — 6 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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