Dr. Tomoki Sempokuya, MD

  • Boise, ID
  • Transplant hepatology physician
NPI1013370725PAC ID3274865605
Medicare services, 2024
443
Medicare patients, 2024
151
Part D claims, 2024
706
Publications
28
MIPS score, 2024
97
Practice address
190 East Bannock Street, Boise, ID 83712
Practice phone
Call (208) 381-2222
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

St. Luke's Boise Medical Center

Hospital · Boise, Idaho

See all 11 affiliations

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Dr. Tomoki Sempokuya is a transplant hepatology physician in Boise, Idaho

Dr. Sempokuya practices at St. Luke's Boise Medical Center in Boise, Idaho, part of St. Luke's Health System.

Dr. Sempokuya's NPI, 1013370725, was assigned on March 30, 2016. Dr. Sempokuya holds Hawaii license MD-20204.

NPI and contact details
Medicare PAC ID
3274865605
NPI enumeration date
March 30, 2016
NPI status
Active
Accepts Medicare assignment
Yes
Offers telehealth
Yes
Practice phone
(208) 381-2222
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
37
Medical school graduation
2015

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Tomoki Sempokuya practices at St. Luke's Boise Medical Center in Boise, Idaho

Dr. Sempokuya's primary practice is St. Luke's Boise Medical Center, at 190 East Bannock Street, Boise, ID 83712 in Ada County. The practice phone is (208) 381-2222.

Source: Dmand AI Affiliation Data

Dr. Tomoki Sempokuya is affiliated with 8 sites of care and 3 medical groups

Dr. Sempokuya's primary practice is St. Luke's Boise Medical Center in Boise, Idaho, part of St. Luke's Health System. Dr. Sempokuya is also affiliated with Intermountain Medical Center. The medical group on file is St. Luke's Health System. Dmand AI also links Dr. Sempokuya to 3 more hospitals, 2 group practices and clinics, 2 medical groups and 1 breast imaging center, each named with a free account.

See all 11 affiliations for Dr. Sempokuya

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Tomoki Sempokuya's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Sempokuya practices, 8 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
St. Luke's Boise Medical CenterAvailable with a free account
+7 more sites and 2 medical groupsAvailable with a free account

Source: Dmand AI Technology Install Data

For health IT teams

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Dr. Tomoki Sempokuya is one of 2 transplant hepatology physicians in Idaho

Transplant hepatology is Dr. Sempokuya's primary specialty in the NPI Registry, under taxonomy code 207RT0003X. Dr. Sempokuya is licensed in Hawaii.

Specialties and state licenses

  • Transplant hepatology, HawaiiPrimaryLicense MD-20204 · taxonomy 207RT0003X

Transplant hepatology physicians near Dr. Sempokuya

Counts of transplant hepatology physicians with a Dmand AI profile, by place and practice. Each opens the list.

2transplant hepatology physicians in Idaho

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Tomoki Sempokuya billed Medicare for 443 services in 2024

CMS data shows 443 Medicare services from Dr. Sempokuya across 6 procedure codes in 2024, for 151 Medicare patients. Medicare paid $40,708 for them.

Medicare services, 2024443
Medicare patients151
Paid by Medicare$40,708
Procedure codes6

Dr. Sempokuya's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1192024: 367208%
Other services
2023: 02024: 76
Tests and treatments
2023: 112024: 0100%

Where Dr. Sempokuya's Medicare services took place, 2024

  • In an office12729%
  • In a facility31671%

Dr. Sempokuya'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.

See all procedures by Dr. Sempokuya

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Source: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data

Dr. Tomoki Sempokuya treated 151 Medicare patients in 2024, average age 70

CMS counts 151 Medicare patients who saw Dr. Sempokuya in 2024. The largest group is 65 to 74, with 79 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 11% are also on Medicaid. 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 Dr. Sempokuya's median patient age at 68, with 52% women.

Medicare patients, 2024151
Average age70
Average risk score2.56
Also on Medicaid11%

Dr. Sempokuya's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Sempokuya's Medicare patients by sex, 2024

  • Women6543%
  • Men8657%

Chronic conditions among Dr. Sempokuya's Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Diabetes54%
  4. Chronic kidney disease50%
  5. Ischemic heart disease30%
  6. Arthritis25%
  7. Osteoporosis23%
  8. Alcohol and drug use disorders19%

Share of Medicare patients with each condition. A patient can have several.

Dr. Sempokuya's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 68

Patient panel by sex, all payers

  • Women52%
  • Men48%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Tomoki Sempokuya wrote 706 Medicare Part D claims in 2024

In 2024, Dr. Sempokuya wrote 706 Medicare Part D claims for 148 patients. 90% of them were for generic drugs. CMS names the drug for 525 of them, across 16 drugs with 11 or more claims each, at $86,588 in total drug cost. In 2023, CMS named 46 claims across 3 drugs.

Part D claims, 2024706
Drugs named by CMS16
Total drug cost$86,588
Part D patients148

Dr. Sempokuya's Part D claims by kind of drug, 2024

  • Generic636 claims90%
  • Brand-name and other70 claims10%

Dr. Sempokuya'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. Sempokuya's Part D claims, 2024

  • Antibiotics7%47 of 706 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: 462024: 5251041%

Drugs named by CMS: 16 in 2024, 3 in 2023.

See all prescribing by Dr. Sempokuya

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. Tomoki Sempokuya 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. Sempokuya for performance year 2024, reported through an alternative payment model (APM). Dr. Sempokuya accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Sempokuya as offering telehealth. CMS counts 14 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Sempokuya, more than 45% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes
Offers telehealth
Yes

Dr. Sempokuya'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.

Where Dr. Sempokuya ranks in Medicare procedure volume

Upper gastrointestinal (GI) endoscopy for acid reflux
45th percentile14 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

For MedTech and pharma teams

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Dr. Tomoki Sempokuya has 28 publications on record

Dmand AI links 28 papers to Dr. Sempokuya, published from 2011 to 2024. 2023 was the busiest year, with 5. The most frequent topics are Hawaii, Liver Neoplasms and SEER Program. Dr. Sempokuya has published most often in Hawaii J Health Soc Welf. Dr. Sempokuya's most frequent co-authors are Veeravich Jaruvongvanich, MD, Patompong Ungprasert, MD and Nicholas Michael McDonald, MD.

Papers28
Years published2011 to 2024

Dr. Sempokuya's papers by year, 2011 to 2024

Topics Dr. Sempokuya writes about most

  • Hawaii
  • Liver Neoplasms
  • SEER Program

Dr. Sempokuya's most frequent co-authors

Recent publications by Dr. Sempokuya

See all 28 publications and co-authors

See who Dr. Sempokuya researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Sempokuya works with, so you can find a warm path to the right transplant hepatology physicians.

How network discovery works

Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage

Dr. Tomoki Sempokuya received $5,454 in industry payments from 2023 to 2025

CMS Open Payments shows 132 general payments to Dr. Sempokuya from 23 drug and device companies from 2023 to 2025. Food and beverage make up the largest share, 100% of the total. Gilead Sciences, Inc. paid the most, $1,695.

General payments to Dr. Sempokuya by program year, 2023 to 2025

Companies that paid Dr. Sempokuya the most, 2023 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Sempokuya

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Sources for Dr. Tomoki Sempokuya's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare 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 percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Publications, topics and co-authorsPubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage
Industry paymentsOpen Payments (CMS) (opens in a new tab)
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Tomoki Sempokuya

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. Tomoki Sempokuya's NPI number?

Dr. Tomoki Sempokuya's NPI number is 1013370725. It was assigned on March 30, 2016, and it is active in the NPI Registry.

What kind of doctor is Dr. Tomoki Sempokuya?

Dr. Tomoki Sempokuya is a transplant hepatology physician in Boise, Idaho. The primary specialty in the NPI Registry is Transplant Hepatology Physician (taxonomy code 207RT0003X).

Where does Dr. Tomoki Sempokuya practice?

Dr. Sempokuya practices at 190 East Bannock Street, Boise, ID 83712. Dr. Sempokuya's primary practice is St. Luke's Boise Medical Center in Boise, Idaho, part of St. Luke's Health System. Dmand AI also links Dr. Sempokuya to 3 hospitals, 2 group practices and clinics, 2 medical groups and 1 breast imaging center.

What is Dr. Tomoki Sempokuya's office phone number?

The practice phone on file for Dr. Sempokuya is (208) 381-2222.

What is Dr. Tomoki Sempokuya's medical license number?

Dr. Sempokuya holds Hawaii license MD-20204.

Which hospitals is Dr. Tomoki Sempokuya affiliated with?

Dr. Sempokuya practices at St. Luke's Boise Medical Center in Boise, Idaho. Dr. Sempokuya is also affiliated with Intermountain Medical Center. Dmand AI links Dr. Sempokuya to 3 more hospitals.

What medical group is Dr. Tomoki Sempokuya part of?

Dr. Sempokuya is linked to St. Luke's Health System. Dmand AI links Dr. Sempokuya to 2 more medical groups.

Does Dr. Tomoki Sempokuya accept Medicare?

Yes. CMS data shows Dr. Sempokuya billed Medicare for 443 services in 2024, and Dr. Sempokuya accepts Medicare assignment.

Does Dr. Tomoki Sempokuya offer telehealth?

Yes. The CMS Doctors and Clinicians file lists Dr. Sempokuya as offering telehealth services.

What is Dr. Tomoki Sempokuya's MIPS score?

Dr. Sempokuya's MIPS final score for performance year 2024 is 97 out of 100, reported through an alternative payment model (APM).

Show 7 more questionsShow fewer questions

How many Medicare patients does Dr. Tomoki Sempokuya see?

CMS counts 151 Medicare patients who saw Dr. Sempokuya in 2024, with an average age of 70.

What services does Dr. Tomoki Sempokuya bill to Medicare?

In 2024, Dr. Sempokuya's most billed Medicare services were office visit, established patient (99215), medicare service (G2211) and office visit, established patient (99214).

What drugs does Dr. Tomoki Sempokuya prescribe most?

In 2024 Medicare Part D data, Dr. Sempokuya's most prescribed drugs by claims were Entecavir, Tacrolimus and Carvedilol.

Has Dr. Tomoki Sempokuya received payments from drug or device companies?

CMS Open Payments shows $5,454 in general payments to Dr. Sempokuya from 23 companies from 2023 to 2025. The largest total came from Gilead Sciences, Inc.

How long has Dr. Tomoki Sempokuya been practicing?

Dr. Sempokuya graduated from medical school in 2015, 11 years ago.

Does Dr. Tomoki Sempokuya do research?

Dmand AI links 28 publications to Dr. Sempokuya, published from 2011 to 2024.

Who does Dr. Tomoki Sempokuya publish with?

Dr. Sempokuya's most frequent co-authors are Veeravich Jaruvongvanich, MD (4 shared papers), Patompong Ungprasert, MD (3 shared papers) and Nicholas Michael McDonald, MD (2 shared papers).

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