Dr. Seiya Tokunaga, DO

Dr. Tokunaga practices at Dignity Health - St. Mary Medical Center in Long Beach, California, part of CommonSpirit Health.

Dr. Tokunaga's NPI, 1629572334, was assigned on March 19, 2018. Dr. Tokunaga holds California license 20A17872.

Dr. Tokunaga's primary practice is Dignity Health - St. Mary Medical Center, at 1050 Linden Ave, Long Beach, CA 90813 in Los Angeles County. The practice phone is (562) 491-9000.

Dr. Tokunaga's primary practice is Dignity Health - St. Mary Medical Center in Long Beach, California, part of CommonSpirit Health. Dr. Tokunaga is also affiliated with Dignity Health - St. John's Regional Medical Center. The medical group on file is Inpatient Specialist of California PC. Dmand AI also links Dr. Tokunaga to 1 more hospital and 1 medical group, each named with a free account.

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tokunaga practices, 3 sites in all. Vendor and product names are available with a free account.

Internal medicine is Dr. Tokunaga's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Tokunaga is licensed in California.

CMS data shows 186 Medicare services from Dr. Tokunaga across 3 procedure codes in 2024, for 50 Medicare patients. Medicare paid $15,927 for them. Every service was in a facility, such as a hospital, rather than an office.

CMS counts 50 Medicare patients who saw Dr. Tokunaga in 2024. The largest group is 65 to 74, with 21 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 78% are also on Medicaid. Their average risk score is 3.20, 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. Tokunaga's median patient age at 54, with 48% women.

In 2024, Dr. Tokunaga wrote 83 Medicare Part D claims for 30 patients. 73% of them were for generic drugs. CMS names the drug for 25 of them, across 2 drugs with 11 or more claims each, at $219 in total drug cost. In 2021, CMS named 13 claims across 1 drug.

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

Dmand AI links 5 papers to Dr. Tokunaga, published from 2010 to 2019. 2015 was the busiest year, with 2. The most frequent topics are Amyotrophic Lateral Sclerosis, RNA-Binding Protein FUS and Fibroblasts. Dr. Tokunaga has published most often in Proc Natl Acad Sci U S A. Dr. Tokunaga's most frequent co-authors are Albert Russell La Spada, MD, Eric Jinsheng Huang, MD and Hristelina S. Ilieva, MD.