Dr. Nariman Nassiri, MD

Dr. Nassiri practices at Pacific Eye Institute - Upland in Upland, California.

Dr. Nassiri's NPI, 1174056857, was assigned on April 10, 2017. Dr. Nassiri graduated from Tehran University of Medical Sciences School of Medicine in 2005. Dr. Nassiri holds California license A172729.

Dr. Nassiri's primary practice is Pacific Eye Institute - Upland, at 555 N 13th Avenue, Upland, CA 91786. The practice phone is (909) 982-8846.

Dr. Nassiri's primary practice is Pacific Eye Institute - Upland in Upland, California. The medical group on file is City of Hope. Dmand AI also links Dr. Nassiri to 5 more group practices and clinics, 5 medical groups and 1 other site, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nassiri practices, 7 sites in all. Vendor and product names are available with a free account.

Ophthalmology is Dr. Nassiri's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dmand AI has Dr. Nassiri's licenses on file in 2 states: California and Michigan.

CMS data shows 594 Medicare services from Dr. Nassiri across 9 procedure codes in 2024, for 245 Medicare patients. Medicare paid $34,866 for them. Every service was in an office.

CMS counts 245 Medicare patients who saw Dr. Nassiri in 2024. The largest group is 65 to 74, with 96 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 23% are also on Medicaid. Their average risk score is 1.43, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Nassiri's median patient age at 72, with 59% women.

In 2024, Dr. Nassiri wrote 5,584 Medicare Part D claims for 1,346 patients. 61% of them were for generic drugs. CMS names the drug for 5,467 of them, across 31 drugs with 11 or more claims each, at $511,471 in total drug cost. In 2023, CMS named 1,040 claims across 22 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 93 out of 100 for Dr. Nassiri for performance year 2024, reported as part of a group. Dr. Nassiri accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 13 procedures of cataract surgery by Dr. Nassiri, more than 36% of the clinicians it reports for that procedure.

Dmand AI links 43 papers to Dr. Nassiri, published from 2011 to 2022. 2013 was the busiest year, with 5. The most frequent topics are Intraocular Pressure, Visual Acuity and Glaucoma, Open-Angle. Dr. Nassiri has published most often in J Ophthalmic Vis Res. Dr. Nassiri's most frequent co-authors are Bret Alan Hughes, MD, Mark S. Juzych, MD and Joseph Caprioli, MD.

Dmand AI links Dr. Nassiri to 1 clinical trial.

CMS Open Payments shows 52 general payments to Dr. Nassiri from 11 drug and device companies from 2018 to 2025. Food and beverage make up the largest share, 100% of the total. Amgen Inc. paid the most, $607.

Dr. Nassiri graduated from Tehran University of Medical Sciences School of Medicine in 2005.

Dr. Nassiri is in network with 15 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 10. Check the plan with the practice before a visit.