Dr. Gregory Jason Lam, MD

Dr. Lam practices at UCI Health - Orange in Orange, California, part of UC Irvine.

Dr. Lam's NPI, 1871955922, was assigned on March 27, 2016. Dr. Lam graduated from UCSF School of Medicine in 2016. Dr. Lam holds California license A151470.

Dr. Lam's primary practice is UCI Health - Orange, at 101 City Drive South, Orange, CA 92868 in Orange County. The practice phone is (714) 456-7890.

Dr. Lam's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine. The medical group on file is Regents Of The University Of California. Dmand AI also links Dr. Lam to 1 more group practice or clinic, named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Lam practices, 2 sites in all. Vendor and product names are available with a free account.

Internal medicine is Dr. Lam's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Lam is board certified in internal medicine by the American Board of Internal Medicine. Dmand AI has Dr. Lam's licenses on file in 2 states: California and Minnesota.

Dmand AI lists acid reflux, acute kidney failure, acute sinusitis, acute skin infection, alzheimer's disease, aneurysm, anxiety and arthritis among the conditions Dr. Lam treats.

CMS data shows 146 Medicare services from Dr. Lam across 4 procedure codes in 2024, for 109 Medicare patients. Medicare paid $12,598 for them. Every service was in an office.

CMS counts 109 Medicare patients who saw Dr. Lam in 2024. The largest group is 65 to 74, with 52 patients. 75% of them have high cholesterol, and 64% have high blood pressure. 17% are also on Medicaid. Their average risk score is 1.25, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Lam's median patient age at 58, with 35% women.

In 2024, Dr. Lam wrote 364 Medicare Part D claims for 172 patients. 94% of them were for generic drugs. CMS names the drug for 101 of them, across 5 drugs with 11 or more claims each, at $880 in total drug cost. In 2023, CMS named 2,583 claims across 70 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 100 out of 100 for Dr. Lam for performance year 2024, reported through an alternative payment model (APM). Dr. Lam accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Lam as offering telehealth.

CMS Open Payments shows 1 general payment to Dr. Lam from 1 drug or device company in 2025. Education make up the largest share, 100% of the total. Boehringer Ingelheim Pharmaceuticals, Inc. paid the most, $19.

Dr. Lam graduated from UCSF School of Medicine in 2016.

Dr. Lam is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Highmark. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.