Dr. Stephen K. Buto, MD
- Medicare services, 2024
- 445
- Medicare patients, 2024
- 161
- Part D claims, 2024
- 313
- Hospital affiliations
- 1
- Industry payments
- $3,970
- Practice address
- 2226 Liliha St, Honolulu, HI 96817
- Practice phone
- Call (808) 531-5828
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
St Francis Medical Center of Hawaii
Honolulu, Hawaii
Find Dr. Buto'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. Stephen K. Buto is a gastroenterologist in Honolulu, Hawaii
Dr. Buto practices at St Francis Medical Center of Hawaii in Honolulu, Hawaii.
Dr. Buto's NPI, 1962486753, was assigned on December 5, 2005. Dr. Buto graduated from University of Hawaii John A. Burns School of Medicine in 1985. Dr. Buto holds Hawaii license 7479.
- NPI
- 1962486753NPI Registry (opens in a new tab)
- Medicare PAC ID
- 3577462274
- NPI enumeration date
- December 5, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (808) 531-5828
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Stephen K. Buto practices at St Francis Medical Center of Hawaii in Honolulu, Hawaii
Dr. Buto's primary practice is St Francis Medical Center of Hawaii, at 2226 Liliha St, Honolulu, HI 96817 in Honolulu County. The practice phone is (808) 531-5828.
- St Francis Medical Center of Hawaii2226 Liliha St, Honolulu, HI 96817 · Honolulu CountyPhone(808) 531-5828
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Stephen K. Buto is affiliated with 3 sites of care
Dr. Buto's primary practice is St Francis Medical Center of Hawaii in Honolulu, Hawaii. Dr. Buto is also affiliated with The Queen's Medical Center. Dmand AI also links Dr. Buto to 1 more physician office, named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Stephen K. Buto's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Buto practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| St Francis Medical Center of Hawaii | Available with a free account |
| +2 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Stephen K. Buto is one of 76 gastroenterologists in Hawaii
Gastroenterology is Dr. Buto's primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Buto is licensed in Hawaii.
Specialties and state licenses
- Gastroenterology, HawaiiPrimary
Gastroenterologists near Dr. Buto
Counts of gastroenterologists 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. Stephen K. Buto billed Medicare for 445 services in 2024
CMS data shows 445 Medicare services from Dr. Buto across 9 procedure codes in 2024, for 161 Medicare patients. Medicare paid $48,123 for them.
Dr. Buto's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 2312024: 26716%
- Surgery
- 2023: 1322024: 15820%
- Other services
- 2023: 382024: 2047%
Where Dr. Buto's Medicare services took place, 2024
- In an office26760%
- In a facility17840%
Dr. Buto compared with the Hawaii median for gastroenterologists, 2024
- Dr. Buto
- Hawaii median
- Medicare services
- 445vs 30148% above
- Medicare patients
- 161vs 1705% below
- Part D claims
- 250vs 30017% below
Medians across 72 gastroenterologists in Hawaii with Dmand AI profiles that report each measure.
Dr. Buto'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. Buto?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Buto and other gastroenterologists in Hawaii.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Stephen K. Buto treated 161 Medicare patients in 2024, average age 75
CMS counts 161 Medicare patients who saw Dr. Buto in 2024. The largest group is 65 to 74, with 83 patients. 75% of them have high blood pressure, and 75% have high cholesterol. Their average risk score is 0.95, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Buto's median patient age at 70, with 54% women.
Dr. Buto's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Buto's Medicare patients by sex, 2024
- Women9056%
- Men7144%
Chronic conditions among Dr. Buto's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis32%
- Chronic kidney disease30%
- Diabetes29%
- Osteoporosis25%
- Ischemic heart disease24%
- Cancer20%
Share of Medicare patients with each condition. A patient can have several.
Dr. Buto's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women54%
- Men46%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Stephen K. Buto wrote 313 Medicare Part D claims in 2024
In 2024, Dr. Buto wrote 313 Medicare Part D claims for 201 patients. 72% of them were for generic drugs. CMS names the drug for 250 of them, across 6 drugs with 11 or more claims each, at $29,534 in total drug cost. In 2023, CMS named 238 claims across 5 drugs.
Dr. Buto's Part D claims by kind of drug, 2024
- Generic225 claims72%
- Brand-name88 claims28%
Dr. Buto'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: 2382024: 2505%
Drugs named by CMS: 6 in 2024, 5 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. Stephen K. Buto ranks in the 84th percentile for colonoscopy in Medicare
Dr. Buto accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 120 procedures of colonoscopy by Dr. Buto, more than 84% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Where Dr. Buto ranks in Medicare procedure volume
- Colonoscopy
- 84th percentile120 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 76th percentile98 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Stephen K. Buto received $3,970 in industry payments from 2016 to 2025
CMS Open Payments shows 55 general payments to Dr. Buto from 17 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 75% of the total. Boston Scientific Corporation paid the most, $1,469.
General payments to Dr. Buto by program year, 2016 to 2025
General payments to Dr. Buto by kind, 2016 to 2025
- Food and beverage$2,98775%
- Travel and lodging$98425%
Companies that paid Dr. Buto 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. Stephen K. Buto graduated from University of Hawaii John A. Burns School of Medicine
Dr. Buto graduated from University of Hawaii John A. Burns School of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Stephen K. Buto'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand 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)Doctors and Clinicians Utilization Data (CMS) (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. Stephen K. Buto
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. Stephen K. Buto's NPI number?
Dr. Stephen K. Buto's NPI number is 1962486753. It was assigned on December 5, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Stephen K. Buto?
Dr. Stephen K. Buto is a gastroenterologist in Honolulu, Hawaii. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).
Where does Dr. Stephen K. Buto practice?
Dr. Buto practices at 2226 Liliha St, Honolulu, HI 96817. Dr. Buto's primary practice is St Francis Medical Center of Hawaii in Honolulu, Hawaii. Dmand AI also links Dr. Buto to 1 physician office.
What is Dr. Stephen K. Buto's office phone number?
The practice phone on file for Dr. Buto is (808) 531-5828.
What is Dr. Stephen K. Buto's medical license number?
Dr. Buto holds Hawaii license 7479.
Which hospitals is Dr. Stephen K. Buto affiliated with?
Dr. Buto is affiliated with The Queen's Medical Center.
Does Dr. Stephen K. Buto accept Medicare?
Yes. CMS data shows Dr. Buto billed Medicare for 445 services in 2024, and Dr. Buto accepts Medicare assignment.
How many Medicare patients does Dr. Stephen K. Buto see?
CMS counts 161 Medicare patients who saw Dr. Buto in 2024, with an average age of 75.
What services does Dr. Stephen K. Buto bill to Medicare?
In 2024, Dr. Buto's most billed Medicare services were office visit, established patient (99214), office visit, new patient (99203) and surgery: digestive system (45385).
Where did Dr. Stephen K. Buto go to medical school?
Dr. Buto graduated from University of Hawaii John A. Burns School of Medicine in 1985.
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What drugs does Dr. Stephen K. Buto prescribe most?
In 2024 Medicare Part D data, Dr. Buto's most prescribed drugs by claims were Peg 3350-Electrolyte, Peg3350-Sod Sul-Nacl-Kcl-Asb-C and Omeprazole.
Has Dr. Stephen K. Buto received payments from drug or device companies?
CMS Open Payments shows $3,970 in general payments to Dr. Buto from 17 companies from 2016 to 2025. The largest total came from Boston Scientific Corporation.
How long has Dr. Stephen K. Buto been practicing?
Dr. Buto graduated from medical school in 1985, 41 years ago.
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