Dr. On-Tat Lee, MD

Dr. Lee practices at Delta Eye Medical Group, Inc. in Stockton, California.

Dr. Lee's NPI, 1194084517, was assigned on May 4, 2012. Dr. Lee graduated from UC Davis School of Medicine in 2014. Dr. Lee holds California license A138659.

Dr. Lee's primary practice is Delta Eye Medical Group, Inc., at 1617 St Marks Plz, Stockton, CA 95207 in San Joaquin County. The practice phone is (209) 478-1797.

Dr. Lee's primary practice is Delta Eye Medical Group, Inc. in Stockton, California. Dmand AI also links Dr. Lee to 1 group practice or clinic and 1 medical group, each named with a free account.

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

Ophthalmology is Dr. Lee's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Lee is licensed in California.

Dmand AI lists age-related macular degeneration, cataract, cold sores or genital herpes, conjunctivitis, dry eye, eye infection or inflammation, eyelid inflammation and glaucoma among the conditions Dr. Lee treats.

CMS data shows 6,356 Medicare services from Dr. Lee across 18 procedure codes in 2024, for 1,657 Medicare patients. Medicare paid $403,809 for them. Every service was in an office.

CMS counts 1,657 Medicare patients who saw Dr. Lee in 2024. The largest group is 65 to 74, with 641 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 23% are also on Medicaid. Their average risk score is 1.20, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Lee's median patient age at 71, with 57% women.

In 2024, Dr. Lee wrote 3,219 Medicare Part D claims for 754 patients. 45% of them were for generic drugs. CMS names the drug for 3,149 of them, across 34 drugs with 11 or more claims each, at $413,094 in total drug cost. In 2023, CMS named 2,438 claims across 26 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 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. CMS counts 37 procedures of cataract surgery by Dr. Lee, more than 57% of the clinicians it reports for that procedure.

Dmand AI links 12 papers to Dr. Lee, published from 2008 to 2018. 2008 was the busiest year, with 3. The most frequent topics are Fluorescein, Permeability and Collagen. Dr. Lee has published most often in Invest Ophthalmol Vis Sci. Dr. Lee's most frequent co-authors are Jay M. Stewart, MD, Robert B. Bhisitkul, MD and Shan C. Lin, MD.

CMS Open Payments shows 67 general payments to Dr. Lee from 19 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Alcon Laboratories Inc paid the most, $560.

Dr. Lee graduated from UC Davis School of Medicine in 2014.

Dr. Lee is in network with 20 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Elevance. HMO plans come from the most carriers, 12. Check the plan with the practice before a visit.