Dr. Jay Kenneth Mattheis, MD

Dr. Mattheis practices at Riverside University Medical Center in Moreno Valley, California.

Dr. Mattheis' NPI, 1154311058, was assigned on October 24, 2005. Dr. Mattheis graduated from Loma Linda University School Of Medicine in 1988. Dr. Mattheis' California license number on file is G66270.

Dr. Mattheis' primary practice is Riverside University Medical Center, at 26520 Cactus Ave, Moreno Valley, CA 92555 in Riverside County. The practice phone is (951) 486-4458.

Dr. Mattheis' primary practice is Riverside University Medical Center in Moreno Valley, California. Dr. Mattheis is also affiliated with Riverside University Health System - Medical Center. The medical group on file is Loma Linda University Faculty Medical Group (LLUFMG). Dmand AI also links Dr. Mattheis to 1 more hospital, 2 group practices and clinics and 1 medical group, each named with a free account.

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

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

Dmand AI lists cataract, conjunctivitis, dry eye, eye infection or inflammation, glaucoma, hereditary corneal conditions, inflammation of iris and secondary membranaous cataract surgery among the conditions Dr. Mattheis treats.

CMS data shows 1,521 Medicare services from Dr. Mattheis across 9 procedure codes in 2024, for 623 Medicare patients. Medicare paid $84,905 for them.

CMS counts 623 Medicare patients who saw Dr. Mattheis in 2024. The largest group is 65 to 74, with 245 patients. 75% of them have high blood pressure, and 72% have high cholesterol. 48% are also on Medicaid. Their average risk score is 1.57, 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. Mattheis' median patient age at 64, with 59% women.

In 2024, Dr. Mattheis wrote 3,435 Medicare Part D claims for 715 patients. 61% of them were for generic drugs. CMS names the drug for 3,286 of them, across 28 drugs with 11 or more claims each, at $557,827 in total drug cost. In 2023, CMS named 561 claims across 11 drugs.

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 89 out of 100 for Dr. Mattheis for performance year 2024, reported as part of a group. Dr. Mattheis accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Cataract surgery: 1 to 10 procedures (CMS shows small counts as a range)

CMS Open Payments shows 806 general payments to Dr. Mattheis from 24 drug and device companies from 2016 to 2025. Speaker and faculty fees make up the largest share, 47% of the total. Shire North American Group Inc paid the most, $172,329.

Dmand AI lists 2 awards for Dr. Mattheis, most recently Top Docs - Las Vegas in 2023.

Dr. Mattheis graduated from Loma Linda University School Of Medicine in 1988. Dr. Mattheis is a member of AOA, AAO, ACS, AMA, ASCRS and Delta Omega, National Public Heath Honor Society.

Dr. Mattheis is in network with 18 carriers, including Aetna, Blue Cross Blue Shield of Michigan and Excellus BlueCross BlueShield. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.