Dr. Mark S. Humayun, MD

Dr. Humayun practices at Keck Hospital of USC in Los Angeles, California, part of University of Southern California.

Dr. Humayun's NPI, 1548322381, was assigned on December 15, 2006. Dr. Humayun graduated from Duke University School Of Medicine in 1989. Dr. Humayun holds California license A52637.

Dr. Humayun's primary practice is Keck Hospital of USC, at 1500 San Pablo Street, Los Angeles, CA 90033 in Los Angeles County. The practice phone is (323) 442-8656.

Dr. Humayun's primary practice is Keck Hospital of USC in Los Angeles, California, part of University of Southern California. The medical group on file is USC Care Medical Group. Dmand AI also links Dr. Humayun to 1 more group practice or clinic, 1 other site and 1 urgent care center, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Humayun practices, 4 sites in all. Vendor and product names are available with a free account.

Ophthalmology is Dr. Humayun's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Humayun is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Humayun's licenses on file in 4 states: California, Maryland, Florida and North Carolina.

Dmand AI lists age-related macular degeneration, cataract, conjunctivitis, dry eye, eyelid inflammation, laser destruction of retinal or choroid lesions, retinal detachment and retinal occlusion among the conditions Dr. Humayun treats.

CMS data shows 418 Medicare services from Dr. Humayun across 5 procedure codes in 2024, for 99 Medicare patients. Medicare paid $18,037 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 99 Medicare patients who saw Dr. Humayun in 2024. The largest group is 75 to 84, with 53 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 25% are also on Medicaid. Their average risk score is 1.47, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Humayun's median patient age at 74, with 59% women.

In 2019, Dr. Humayun wrote 12 Medicare Part D claims. Every claim was for a generic drug. They cover 1 drug, with $314 in total drug cost. In 2018, CMS named 52 claims across 2 drugs.

Dr. Humayun accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Dmand AI links 67 papers to Dr. Humayun, published from 2003 to 2025. 2018 was the busiest year, with 8. The most frequent topics are Cornea and Retina. Dr. Humayun has published most often in IEEE Trans Biomed Eng. Dr. Humayun's most frequent co-authors are Dean Eliott, MD, Hossein Ameri, MD and Lucian V. Del Priore, MD.

CMS Open Payments shows 116 general payments to Dr. Humayun from 17 drug and device companies from 2016 to 2025. Royalties and licenses make up the largest share, 97% of the total. Alcon Pharmaceuticals Ltd paid the most, $2,716,000.

Dmand AI lists 6 awards for Dr. Humayun, most recently America's Top Doctors in 2014.

Dr. Humayun graduated from Duke University School Of Medicine in 1989. Dr. Humayun is a member of AAO.

Dr. Humayun is in network with 11 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. Medicare plans come from the most carriers, 8. Check the plan with the practice before a visit.