Am J Clin Oncol
Dr. Hiroki Mitsuyama, MD
- Medicare services, 2024
- 1,091
- Medicare patients, 2024
- 126
- Part D claims, 2024
- 86
- Publications
- 2
- Hospital affiliations
- 4
- Practice address
- 34515 9th Avenue South, Federal Way, WA 98003
- Practice phone
- Call (253) 944-8100
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Mitsuyama's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Hiroki Mitsuyama is a radiation oncologist in Federal Way, Washington
Dr. Mitsuyama practices at St. Francis Hospital in Federal Way, Washington, part of CommonSpirit Health.
Dr. Mitsuyama's NPI, 1164488086, was assigned on April 21, 2006. Dr. Mitsuyama graduated from University of North Carolina School of Medicine in 2001. Dr. Mitsuyama's Washington license number on file is MD60178819.
- NPI
- 1164488086NPI Registry (opens in a new tab)
- Medicare PAC ID
- 5092727859
- NPI enumeration date
- April 21, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (253) 944-8100
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 51
- Medical school graduation
- 2001
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Hiroki Mitsuyama practices at St. Francis Hospital in Federal Way, Washington
Dr. Mitsuyama's primary practice is St. Francis Hospital, at 34515 9th Avenue South, Federal Way, WA 98003 in King County. The practice phone is (253) 944-8100.
- St. Francis Hospital34515 9th Avenue South, Federal Way, WA 98003 · King CountyPhone(253) 944-8100
Source: Dmand AI Affiliation Data
Dr. Hiroki Mitsuyama is affiliated with 6 sites of care and 2 medical groups
Dr. Mitsuyama's primary practice is St. Francis Hospital in Federal Way, Washington, part of CommonSpirit Health. Dr. Mitsuyama is also affiliated with St. Joseph Medical Center. The medical group on file is Franciscan Orthopedics - Silverdale. Dmand AI also links Dr. Mitsuyama to 2 more hospitals, 2 group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Hiroki Mitsuyama's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Mitsuyama practices, 6 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St. Francis Hospital | Available with a free account |
| +5 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across CommonSpirit Health and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Hiroki Mitsuyama is one of 162 radiation oncologists in Washington
Radiation oncology is Dr. Mitsuyama's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dr. Mitsuyama is board certified in radiation oncology by the American Board of Radiology. Dmand AI has Dr. Mitsuyama's licenses on file in 3 states: Washington, Arizona and Pennsylvania.
Specialties and state licenses
- Radiation oncology, WashingtonPrimary
- Arizona license
- Pennsylvania license
Clinical focus
Dmand AI lists anal cancer radiation, bladder cancer radiation, bone cancer radiation, brain cancer radiation, brain tumor radiation, breast cancer radiation, colorectal cancer radiation and head & neck cancer radiation among the conditions Dr. Mitsuyama treats.
Radiation oncologists near Dr. Mitsuyama
Counts of radiation oncologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Hiroki Mitsuyama billed Medicare for 1,091 services in 2024
CMS data shows 1,091 Medicare services from Dr. Mitsuyama across 17 procedure codes in 2024, for 126 Medicare patients. Medicare paid $72,504 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Mitsuyama's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 1,1452024: 86325%
- Office and hospital visits
- 2023: 1422024: 1364%
- Other services
- 2023: 452024: 92104%
Dr. Mitsuyama compared with the Washington median for radiation oncologists, 2024
- Dr. Mitsuyama
- Washington median
- Medicare services
- 1,091vs 1,1878% below
- Medicare patients
- 126vs 18632% below
- Part D claims
- 27vs 4439% below
Medians across 156 radiation oncologists in Washington with Dmand AI profiles that report each measure.
Dr. Mitsuyama's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
Need commercial claims for Dr. Mitsuyama?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Mitsuyama and other radiation oncologists in Washington.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Hiroki Mitsuyama treated 126 Medicare patients in 2024, average age 75
CMS counts 126 Medicare patients who saw Dr. Mitsuyama in 2024. The largest group is 75 to 84, with 58 patients. 75% of them have cancer, and 75% have high blood pressure. 12% are also on Medicaid. Their average risk score is 1.44, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Mitsuyama's median patient age at 74, with 47% women.
Dr. Mitsuyama's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Mitsuyama's Medicare patients by sex, 2024
- Women5241%
- Men7459%
Chronic conditions among Dr. Mitsuyama's Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol72%
- Arthritis38%
- Diabetes28%
- Ischemic heart disease23%
- Anxiety22%
- Atrial fibrillation21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Mitsuyama's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 74
Patient panel by sex, all payers
- Women47%
- Men52%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Hiroki Mitsuyama wrote 86 Medicare Part D claims in 2024
In 2024, Dr. Mitsuyama wrote 86 Medicare Part D claims for 35 patients. 95% of them were for generic drugs. CMS names the drug for 27 of them, across 2 drugs with 11 or more claims each, at $386 in total drug cost. In 2023, CMS named 35 claims across 1 drug.
Dr. Mitsuyama's Part D claims by kind of drug, 2024
- Generic82 claims95%
- Brand-name and other4 claims5%
Dr. Mitsuyama's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 352024: 2723%
Drugs named by CMS: 2 in 2024, 1 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Hiroki Mitsuyama takes part in Medicare
Dr. Mitsuyama accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Hiroki Mitsuyama has 2 publications on record
Dmand AI links 2 papers to Dr. Mitsuyama. Dr. Mitsuyama's most frequent co-authors are Peter F. Orio, DO and Jeffrey Bob Virgin, MD, PhD.
Dr. Mitsuyama's most frequent co-authors
Recent publications by Dr. Mitsuyama
See who Dr. Mitsuyama researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Mitsuyama works with, so you can find a warm path to the right radiation oncologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Hiroki Mitsuyama received $181 in industry payments from 2016 to 2019
CMS Open Payments shows 3 general payments to Dr. Mitsuyama from 2 drug and device companies from 2016 to 2019. Food and beverage make up the largest share, 100% of the total. Varian Medical Systems, Inc. paid the most, $167.
General payments to Dr. Mitsuyama by program year, 2016 to 2019
Companies that paid Dr. Mitsuyama the most, 2016 to 2019
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Hiroki Mitsuyama has 1 award and honors on record
Dmand AI lists 1 award for Dr. Mitsuyama, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Mitsuyama
- 2013
- CMS Stage 1 EHR
Source: Dmand AI Professional Profile Data
Dr. Hiroki Mitsuyama graduated from University of North Carolina School of Medicine
Dr. Mitsuyama graduated from University of North Carolina School of Medicine in 2001. Dr. Mitsuyama is a member of ASTRO.
- Medical school
- Board certified in radiation oncology
Source: Dmand AI Professional Profile Data
Dr. Hiroki Mitsuyama accepts plans from 17 insurance carriers
Dr. Mitsuyama is in network with 17 carriers, including United Healthcare, Blue Cross Blue Shield of Michigan and Aetna. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
- United Healthcare
- Blue Cross Blue Shield of Michigan
- Aetna
- Elevance
- HCSC
- Humana
- Blue Cross Blue Shield of Massachusetts
- Regence Health Plans
- +9 more carriersWith a free account
Plan types Dr. Mitsuyama accepts, by number of carriers
- PPO11
- HMO8
- Medicare7
- EPO4
- POS3
- Medicaid1
Source: Dmand AI Insurance Network Data
Sources for Dr. Hiroki Mitsuyama's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Hiroki Mitsuyama
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Hiroki Mitsuyama's NPI number?
Dr. Hiroki Mitsuyama's NPI number is 1164488086. It was assigned on April 21, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Hiroki Mitsuyama?
Dr. Hiroki Mitsuyama is a radiation oncologist in Federal Way, Washington. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Hiroki Mitsuyama practice?
Dr. Mitsuyama practices at 34515 9th Avenue South, Federal Way, WA 98003. Dr. Mitsuyama's primary practice is St. Francis Hospital in Federal Way, Washington, part of CommonSpirit Health. Dmand AI also links Dr. Mitsuyama to 2 hospitals, 2 group practices and clinics and 1 medical group.
What is Dr. Hiroki Mitsuyama's office phone number?
The practice phone on file for Dr. Mitsuyama is (253) 944-8100.
What is Dr. Hiroki Mitsuyama's medical license number?
Dr. Mitsuyama's Washington license number on file is MD60178819, one of the licenses on file in 3 states.
Which states has Dr. Hiroki Mitsuyama been licensed in?
Dmand AI has state licenses on file for Dr. Mitsuyama in Washington (2002 to 2025), Arizona (2006 to 2012) and Pennsylvania (2001 to 2002).
Which hospitals is Dr. Hiroki Mitsuyama affiliated with?
Dr. Mitsuyama practices at St. Francis Hospital in Federal Way, Washington. Dr. Mitsuyama is also affiliated with St. Joseph Medical Center. Dmand AI links Dr. Mitsuyama to 2 more hospitals.
What medical group is Dr. Hiroki Mitsuyama part of?
Dr. Mitsuyama is linked to Franciscan Orthopedics - Silverdale. Dmand AI links Dr. Mitsuyama to 1 more medical group.
Does Dr. Hiroki Mitsuyama accept Medicare?
Yes. CMS data shows Dr. Mitsuyama billed Medicare for 1,091 services in 2024, and Dr. Mitsuyama accepts Medicare assignment.
How many Medicare patients does Dr. Hiroki Mitsuyama see?
CMS counts 126 Medicare patients who saw Dr. Mitsuyama in 2024, with an average age of 75.
Show 9 more questionsShow fewer questions
Is Dr. Hiroki Mitsuyama board certified?
Yes. Dr. Mitsuyama is board certified in radiation oncology by the American Board of Radiology.
What services does Dr. Hiroki Mitsuyama bill to Medicare?
In 2024, Dr. Mitsuyama's most billed Medicare services were radiation oncology (77014), radiation oncology (77427) and radiation oncology (77300).
Where did Dr. Hiroki Mitsuyama go to medical school?
Dr. Mitsuyama graduated from University of North Carolina School of Medicine in 2001.
What drugs does Dr. Hiroki Mitsuyama prescribe most?
In 2024 Medicare Part D data, Dr. Mitsuyama's most prescribed drugs by claims were Tamsulosin HCl and Pentoxifylline.
Has Dr. Hiroki Mitsuyama received payments from drug or device companies?
CMS Open Payments shows $181 in general payments to Dr. Mitsuyama from 2 companies from 2016 to 2019. The largest total came from Varian Medical Systems, Inc.
How long has Dr. Hiroki Mitsuyama been practicing?
Dr. Mitsuyama graduated from medical school in 2001, 25 years ago.
Does Dr. Hiroki Mitsuyama do research?
Dmand AI links 2 publications to Dr. Mitsuyama.
Who does Dr. Hiroki Mitsuyama publish with?
Dr. Mitsuyama's most frequent co-authors are Peter F. Orio, DO (1 shared paper) and Jeffrey Bob Virgin, MD, PhD (1 shared paper).
What insurance does Dr. Hiroki Mitsuyama accept?
Dr. Mitsuyama is in network with 17 carriers, including United Healthcare, Blue Cross Blue Shield of Michigan and Aetna. PPO plans come from the most carriers, 11. Check the plan with the practice before a visit.
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