Katherine M. Mattison, FNP-C

Katherine Mattison practices at Riverside University Medical Center in Moreno Valley, California.

Katherine Mattison's NPI, 1104215888, was assigned on January 17, 2015. Katherine Mattison holds California license NP95001682.

Katherine Mattison's 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.

Katherine Mattison's primary practice is Riverside University Medical Center in Moreno Valley, California. Katherine Mattison 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 tracks the electronic health record (EHR) system at each site where Katherine Mattison practices. Vendor and product names are available with a free account.

Nurse practitioner is Katherine Mattison's primary specialty in the NPI Registry, under taxonomy code 363L00000X. Katherine Mattison is board certified in family nurse practitioner by the American Academy of Nurse Practitioners Certification Program (AANPCP). Katherine Mattison is licensed in California.

CMS data shows 57 Medicare services from Katherine Mattison across 1 procedure code in 2024, all of them office visits, for 35 Medicare patients. Medicare paid $1,111 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 35 Medicare patients who saw Katherine Mattison in 2024. The largest group is 65 to 74, with 21 patients. 75% of them have high blood pressure, and 71% have cancer. Their average risk score is 2.56, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Katherine Mattison's median patient age at 58, with 80% women.

In 2024, Katherine Mattison wrote 182 Medicare Part D claims for 25 patients. 72% of them were for generic drugs. CMS names the drug for 134 of them, across 8 drugs with 11 or more claims each, at $358,641 in total drug cost.

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

CMS Open Payments shows 7 general payments to Katherine Mattison from 4 drug and device companies from 2024 to 2025. Education make up the largest share, 61% of the total. Astellas Pharma US Inc paid the most, $175.