Angiotensin-Converting Enzyme InhibitorsAngiotensin Receptor AntagonistsAntineoplastic Combined Chemotherapy Protocols
Dr. Stuart Y. Tsuji, MD, PhD
NPI1558534602PAC ID9436298015
- Medicare services, 2024
- 1,156
- Medicare patients, 2024
- 124
- Part D claims, 2024
- 131
- Publications
- 1
- Clinical trials
- 3
- Practice address
- 1301 Punchbowl St, Honolulu, HI 96813
- Practice phone
- Call (808) 538-9011
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Tsuji'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. Stuart Y. Tsuji is a radiation oncologist in Honolulu, Hawaii
Dr. Tsuji practices at The Queen's Medical Center in Honolulu, Hawaii, part of The Queen's Health Systems.
Dr. Tsuji's NPI, 1558534602, was assigned on April 9, 2008. Dr. Tsuji graduated from Stanford University School of Medicine in 2004. Dr. Tsuji holds Hawaii license MD15308.
NPI and contact details
- NPI
- 1558534602NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436298015
- NPI enumeration date
- April 9, 2008
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (808) 538-9011
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 48
- Medical school graduation
- 2004
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stuart Y. Tsuji practices at The Queen's Medical Center in Honolulu, Hawaii
Dr. Tsuji's primary practice is The Queen's Medical Center, at 1301 Punchbowl St, Honolulu, HI 96813 in Honolulu County. The practice phone is (808) 538-9011.
- The Queen's Medical Center1301 Punchbowl St, Honolulu, HI 96813 · Honolulu CountyPhone(808) 538-9011
Source: Dmand AI Affiliation Data
Dr. Stuart Y. Tsuji is affiliated with 1 site of care and 2 medical groups
Dr. Tsuji's primary practice is The Queen's Medical Center in Honolulu, Hawaii, part of The Queen's Health Systems. The medical group on file is The Queen's Medical Center. Dmand AI also links Dr. Tsuji to 1 more medical group, named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Stuart Y. Tsuji's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Tsuji practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| The Queen's Medical Center | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
See the EHR and IT leaders at every hospital where Dr. Tsuji practices
Dmand AI maps EHR vendors, IT decision makers and buying committees across The Queen's Health Systems and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Stuart Y. Tsuji is one of 25 radiation oncologists in Hawaii
Radiation oncology is Dr. Tsuji's primary specialty in the NPI Registry, under taxonomy code 2085R0001X. Dmand AI has Dr. Tsuji's licenses on file in 2 states: Hawaii and California.
Specialties and state licenses
- Radiation oncology, HawaiiPrimary
- California license
Radiation oncologists near Dr. Tsuji
Counts of radiation oncologists with a Dmand AI profile, by place and practice. Each opens the list.
25radiation oncologists in Hawaii18radiation oncologists in Honolulu7radiation oncologists at The Queen's Medical Center
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Stuart Y. Tsuji billed Medicare for 1,156 services in 2024
CMS data shows 1,156 Medicare services from Dr. Tsuji across 15 procedure codes in 2024, for 124 Medicare patients. Medicare paid $83,445 for them. Every service was in a facility, such as a hospital, rather than an office.
Medicare services, 20241,156
Medicare patients124
Paid by Medicare$83,445
Procedure codes15
Dr. Tsuji's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 1,2782024: 1,02120%
- Office and hospital visits
- 2023: 692024: 8016%
- Other services
- 2023: 402024: 5538%
- Surgery
- 2023: 172024: 0100%
Dr. Tsuji compared with the Hawaii median for radiation oncologists, 2024
- Dr. Tsuji
- Hawaii median
- Medicare services
- 1,156vs 1,143Close to median
- Medicare patients
- 124vs 1347% below
- Part D claims
- 77vs 302.6 times
Medians across 26 radiation oncologists in Hawaii with Dmand AI profiles that report each measure.
Dr. Tsuji'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. Tsuji?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Tsuji and other radiation oncologists in Hawaii.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stuart Y. Tsuji treated 124 Medicare patients in 2024, average age 76
CMS counts 124 Medicare patients who saw Dr. Tsuji in 2024. The largest group is 75 to 84, with 59 patients. 75% of them have cancer, and 75% have high blood pressure. 10% are also on Medicaid. Their average risk score is 1.96, 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. Tsuji's median patient age at 75, with 30% women.
Medicare patients, 2024124
Average age76
Average risk score1.96
Also on Medicaid10%
Dr. Tsuji's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Tsuji's Medicare patients by sex, 2024
- Women3629%
- Men8871%
Chronic conditions among Dr. Tsuji's Medicare patients, 2024
- Cancer75%
- High blood pressure75%
- High cholesterol75%
- Chronic kidney disease41%
- Diabetes32%
- Arthritis31%
- Ischemic heart disease31%
- Atrial fibrillation23%
Share of Medicare patients with each condition. A patient can have several.
Dr. Tsuji's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women30%
- Men70%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stuart Y. Tsuji wrote 131 Medicare Part D claims in 2024
In 2024, Dr. Tsuji wrote 131 Medicare Part D claims for 48 patients. 94% of them were for generic drugs. CMS names the drug for 77 of them, across 4 drugs with 11 or more claims each, at $1,192 in total drug cost. In 2023, CMS named 73 claims across 3 drugs.
Part D claims, 2024131
Drugs named by CMS4
Total drug cost$1,192
Part D patients48
Dr. Tsuji's Part D claims by kind of drug, 2024
- Generic123 claims94%
- Brand-name and other8 claims6%
Dr. Tsuji'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.
Drug classes CMS tracks in Dr. Tsuji's Part D claims, 2024
- Opioids16%21 of 131 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 732024: 775%
Drugs named by CMS: 4 in 2024, 3 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
Dr. Stuart Y. Tsuji scored 97 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 97 out of 100 for Dr. Tsuji for performance year 2024, reported through an alternative payment model (APM). Dr. Tsuji accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Tsuji as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Tsuji's MIPS scores, performance year 2024
- 97of 100Final score
- 89.8of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
For MedTech and pharma teams
Find radiation oncologists like Dr. Tsuji by procedure volume and prescribing
Filter 7.4M+ HCPs by Medicare procedures, Part D drugs and Open Payments history, then reach them with verified contacts in one login.
Dr. Stuart Y. Tsuji has 1 publication on record
Dmand AI links 1 paper to Dr. Tsuji in 2016. Dr. Tsuji's most frequent co-authors are Alisa M. Ching, MD, Paul M. Harari, MD and Brett Aaron Morris, MD, PhD.
Papers1
Dr. Tsuji's most frequent co-authors
- Alisa M. Ching, MD1 shared paper
- Paul M. Harari, MD1 shared paper
- Brett Aaron Morris, MD, PhD1 shared paper
Recent publications by Dr. Tsuji
See who Dr. Tsuji researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Tsuji 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. Stuart Y. Tsuji has worked on 3 clinical trials
Dmand AI links Dr. Tsuji to 3 clinical trials, 3 of them phase 2 studies. 2 are still active or recruiting. Conditions studied include Breast Neoplasms, Cognitive Dysfunction and Breast Diseases. M.D. Anderson Cancer Center sponsors the most, 2.
Conditions in Dr. Tsuji's trials
- Breast Neoplasms
- Cognitive Dysfunction
- Breast Diseases
- Cognition Disorders
Investigators on the most trials with Dr. Tsuji
- Harish Gangaram Ahuja, MD1 shared trial
- Daniel H. Barnett, MD1 shared trial
- Stephen G. Chun, MD1 shared trial
Recent clinical trials with Dr. Tsuji
Cognitive DysfunctionCognition DisordersRamipril
Hypofractionated Vs. Conventional Regional Nodal Radiation Therapy for Patients with Invasive Breast Cancer (opens in a new tab)
Active, not recruitingPhase 2
Breast NeoplasmsBreast DiseasesRadiation TherapyHypofractionated Radiation Therapy
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Stuart Y. Tsuji received $2,049 in industry payments from 2016 to 2025
CMS Open Payments shows 47 general payments to Dr. Tsuji from 19 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. Varian Medical Systems, Inc. paid the most, $386.
General payments to Dr. Tsuji by program year, 2016 to 2025
General payments to Dr. Tsuji by kind, 2016 to 2025
$2Kin total
- Food and beverage$2,02899%
- Education$211%
Companies that paid Dr. Tsuji the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Stuart Y. Tsuji graduated from Stanford University School of Medicine
Dr. Tsuji graduated from Stanford University School of Medicine in 2004.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stuart Y. Tsuji'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)Clinician Public Reporting: Overall MIPS Performance (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 |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile 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. Stuart Y. Tsuji
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. Stuart Y. Tsuji's NPI number?
Dr. Stuart Y. Tsuji's NPI number is 1558534602. It was assigned on April 9, 2008, and it is active in the NPI Registry.
What kind of doctor is Dr. Stuart Y. Tsuji?
Dr. Stuart Y. Tsuji is a radiation oncologist in Honolulu, Hawaii. The primary specialty in the NPI Registry is Radiation Oncology Physician (taxonomy code 2085R0001X).
Where does Dr. Stuart Y. Tsuji practice?
Dr. Tsuji practices at 1301 Punchbowl St, Honolulu, HI 96813. Dr. Tsuji's primary practice is The Queen's Medical Center in Honolulu, Hawaii, part of The Queen's Health Systems. Dmand AI also links Dr. Tsuji to 1 medical group.
What is Dr. Stuart Y. Tsuji's office phone number?
The practice phone on file for Dr. Tsuji is (808) 538-9011.
What is Dr. Stuart Y. Tsuji's medical license number?
Dr. Tsuji holds Hawaii license MD15308, one of the licenses on file in 2 states.
Which states has Dr. Stuart Y. Tsuji been licensed in?
Dmand AI has state licenses on file for Dr. Tsuji in Hawaii and California.
Which hospitals is Dr. Stuart Y. Tsuji affiliated with?
Dr. Tsuji practices at The Queen's Medical Center in Honolulu, Hawaii.
What medical group is Dr. Stuart Y. Tsuji part of?
Dr. Tsuji is linked to The Queen's Medical Center. Dmand AI links Dr. Tsuji to 1 more medical group.
Does Dr. Stuart Y. Tsuji accept Medicare?
Yes. CMS data shows Dr. Tsuji billed Medicare for 1,156 services in 2024, and Dr. Tsuji accepts Medicare assignment.
Does Dr. Stuart Y. Tsuji offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Tsuji as offering telehealth services.
Show 9 more questionsShow fewer questions
What is Dr. Stuart Y. Tsuji's MIPS score?
Dr. Tsuji's MIPS final score for performance year 2024 is 97 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. Stuart Y. Tsuji see?
CMS counts 124 Medicare patients who saw Dr. Tsuji in 2024, with an average age of 76.
What services does Dr. Stuart Y. Tsuji bill to Medicare?
In 2024, Dr. Tsuji's most billed Medicare services were radiation oncology (77014), radiation oncology (77427) and radiation oncology (77300).
Where did Dr. Stuart Y. Tsuji go to medical school?
Dr. Tsuji graduated from Stanford University School of Medicine in 2004.
What drugs does Dr. Stuart Y. Tsuji prescribe most?
In 2024 Medicare Part D data, Dr. Tsuji's most prescribed drugs by claims were Tamsulosin HCl, Gabapentin and Hydrocodone-Acetaminophen.
Has Dr. Stuart Y. Tsuji received payments from drug or device companies?
CMS Open Payments shows $2,049 in general payments to Dr. Tsuji from 19 companies from 2016 to 2025. The largest total came from Varian Medical Systems, Inc.
How long has Dr. Stuart Y. Tsuji been practicing?
Dr. Tsuji graduated from medical school in 2004, 22 years ago.
Does Dr. Stuart Y. Tsuji do research?
Dmand AI links 1 publication to Dr. Tsuji. Dr. Tsuji has worked on 3 clinical trials.
Who does Dr. Stuart Y. Tsuji publish with?
Dr. Tsuji's most frequent co-authors are Alisa M. Ching, MD (1 shared paper), Paul M. Harari, MD (1 shared paper) and Brett Aaron Morris, MD, PhD (1 shared paper).
Selling to radiation oncology practices?
See radiation oncologists in Hawaii by site of care and group
Find the practices, groups and hospitals they work with, and the right people to contact at each.
- 30 days free
- Self-serve
- No credit card