Dr. Onechang William Lee, MD

Dr. Lee practices at Tien T Nguyen M.D. Inc. in Fountain Valley, California.

Dr. Lee's NPI, 1881838662, was assigned on April 24, 2009. Dr. Lee graduated from Albany Medical College in 2008. Dr. Lee holds California license A143259.

Dr. Lee's primary practice is Tien T Nguyen M.D. Inc., at 18035 Brookhurst St, Fountain Valley, CA 92708 in Orange County. The practice phone is (714) 433-2000.

Dr. Lee's primary practice is Tien T Nguyen M.D. Inc. in Fountain Valley, California. Dr. Lee is also affiliated with Orange Coast Medical Center. The medical group on file is Orange County Brain & Spine Group. Dmand AI also links Dr. Lee to 2 more hospitals, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lee practices, 3 sites in all. Vendor and product names are available with a free account.

Neurological surgery is Dr. Lee's primary specialty in the NPI Registry, under taxonomy code 207T00000X. Dr. Lee is board certified in neurological surgery by the American Board of Neurological Surgery. Dmand AI has Dr. Lee's licenses on file in 3 states: California, Virginia and Illinois.

Dmand AI lists craniotomy, lower back pain, neck pain and spine problems and spinal fusion among the conditions Dr. Lee treats.

CMS data shows 348 Medicare services from Dr. Lee across 5 procedure codes in 2024, for 169 Medicare patients. Medicare paid $42,938 for them.

CMS counts 169 Medicare patients who saw Dr. Lee in 2024. The largest group is 65 to 74, with 64 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 62% are also on Medicaid. Their average risk score is 1.98, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Lee's median patient age at 63, with 53% women.

In 2024, Dr. Lee wrote 17 Medicare Part D claims. 100% of them were for generic drugs. CMS names the drug for 16 of them, across 1 drug with 11 or more claims each, at $683 in total drug cost. In 2018, CMS named 11 claims across 1 drug.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 90 out of 100 for Dr. Lee for performance year 2024, reported as part of a group. Dr. Lee accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Laminectomy or laminotomy (partial removal of spine bones): 1 to 10 procedures (CMS shows small counts as a range)

Spinal fusion: 1 to 10 procedures (CMS shows small counts as a range)

CMS Open Payments shows 36 general payments to Dr. Lee from 10 drug and device companies from 2016 to 2024. Food and beverage make up the largest share, 100% of the total. Horizon Pharma plc paid the most, $174.

Dr. Lee graduated from Albany Medical College in 2008. Dr. Lee is a member of CNS.

Dr. Lee is in network with 12 carriers, including United Healthcare, Blue Cross Blue Shield of Michigan and Blue Cross Blue Shield of Massachusetts. PPO plans come from the most carriers, 7. Check the plan with the practice before a visit.