Dr. Parshaw Jonathan Dorriz, MD

Dr. Dorriz practices at Mission Hospital - Unit in Mission Viejo, California.

Dr. Dorriz's NPI, 1972940625, was assigned on June 3, 2013. Dr. Dorriz graduated from American University of the Caribbean School of Medicine in 2012. Dr. Dorriz holds California license A137931.

Dr. Dorriz's primary practice is Mission Hospital - Unit, at 27700 Medical Center Rd, Mission Viejo, CA 92691 in Orange County. The practice phone is (949) 365-2447.

Dr. Dorriz's primary practice is Mission Hospital - Unit in Mission Viejo, California. Dr. Dorriz is also affiliated with Providence Mission Hospital. The medical group on file is St. Jude Heritage Medical Group. Dmand AI also links Dr. Dorriz to 1 more hospital and 1 group practice or clinic, each named with a free account.

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

Neurology is Dr. Dorriz's primary specialty in the NPI Registry, under taxonomy code 2084N0400X. Dr. Dorriz is board certified in epilepsy by the American Board of Psychiatry and Neurology. Dmand AI has Dr. Dorriz's licenses on file in 15 states: California, Illinois, Maine, Colorado, Georgia, Louisiana, New Jersey, New York, Arkansas, Connecticut, Iowa, Kansas, Michigan, North Carolina and Ohio.

Dmand AI lists alzheimer's disease, cerebrovascular disease, epilepsy, head injury, hypersomnia, non-alzheimer's dementia (chronic) and parkinson's disease among the conditions Dr. Dorriz treats.

CMS data shows 992 Medicare services from Dr. Dorriz across 19 procedure codes in 2024, for 475 Medicare patients. Medicare paid $144,992 for them.

CMS counts 475 Medicare patients who saw Dr. Dorriz in 2024. The largest group is 75 to 84, with 198 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 21% are also on Medicaid. Their average risk score is 1.93, 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. Dorriz's median patient age at 70, with 52% women.

In 2024, Dr. Dorriz wrote 1,051 Medicare Part D claims for 171 patients. 84% of them were for generic drugs. CMS names the drug for 793 of them, across 21 drugs with 11 or more claims each, at $143,997 in total drug cost. In 2023, CMS named 794 claims across 19 drugs.

Dr. Dorriz accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Dorriz as offering telehealth.

Dmand AI links 3 papers to Dr. Dorriz, published from 2023 to 2025. The most frequent topics are Electroencephalography, Seizures and Status Epilepticus. Dr. Dorriz's most frequent co-authors are Kapil Gururangan, MD, Matthew Aaron Kaplan, DO and Richard Joseph Kozak, MD.

CMS Open Payments shows 590 general payments to Dr. Dorriz from 58 drug and device companies from 2018 to 2025. Consulting fees make up the largest share, 99% of the total. Ceribell, Inc. paid the most, $1,519,180.

Dr. Dorriz graduated from American University of the Caribbean School of Medicine in 2012. Dr. Dorriz is a member of AAN and AES.

Dr. Dorriz is in network with 14 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 9. Check the plan with the practice before a visit.