Dr. Benjamin Stuart Thomas, MD

  • Kailua, HI
  • Infectious disease specialist
NPI1164658019PAC ID4981820081
Medicare services, 2024
1,479
Medicare patients, 2024
387
Part D claims, 2024
1,144
Publications
13
MIPS score, 2024
94
Practice address
640 Ulukahiki St, Kailua, HI 96734
Practice phone
Call (808) 263-5015
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Adventist Health Castle

Hospital · Kailua, Hawaii

See all 5 affiliations

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Dr. Benjamin Stuart Thomas is an infectious disease specialist in Kailua, Hawaii

Dr. Thomas practices at Adventist Health Castle in Kailua, Hawaii, part of Adventist Health.

Dr. Thomas' NPI, 1164658019, was assigned on June 5, 2009. Dr. Thomas graduated from Mercer University School of Medicine in 2009. Dr. Thomas holds Hawaii license MD-18023.

NPI and contact details
Medicare PAC ID
4981820081
NPI enumeration date
June 5, 2009
NPI status
Active
Offers telehealth
Yes
Practice phone
(808) 263-5015
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
43
Medical school graduation
2009

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

Dr. Benjamin Stuart Thomas practices at Adventist Health Castle in Kailua, Hawaii

Dr. Thomas' primary practice is Adventist Health Castle, at 640 Ulukahiki St, Kailua, HI 96734 in Honolulu County. The practice phone is (808) 263-5015.

Source: Dmand AI Affiliation Data

Dr. Benjamin Stuart Thomas is affiliated with 4 sites of care and 1 medical group

Dr. Thomas' primary practice is Adventist Health Castle in Kailua, Hawaii, part of Adventist Health. Dr. Thomas is also affiliated with The Queen's Medical Center. The medical group on file is Hilo Benioff Medical Center. Dmand AI also links Dr. Thomas to 2 more hospitals, each named with a free account.

See all 5 affiliations for Dr. Thomas

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

Dmand AI tracks the EHR system at Dr. Benjamin Stuart Thomas' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Thomas practices, 4 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
Adventist Health CastleAvailable with a free account
+3 more affiliated sitesAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Benjamin Stuart Thomas is one of 37 infectious disease specialists in Hawaii

Infectious disease is Dr. Thomas' primary specialty in the NPI Registry, under taxonomy code 207RI0200X. Dmand AI has Dr. Thomas' licenses on file in 3 states: Hawaii, Georgia and Missouri.

Specialties and state licenses

  • Infectious disease, HawaiiPrimaryLicense MD-18023 · taxonomy 207RI0200X
  • Internal medicine, GeorgiaLicense 073163 · taxonomy 207R00000X
  • Missouri licenseLicense 2013015515

Infectious disease specialists near Dr. Thomas

Counts of infectious disease specialists 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. Benjamin Stuart Thomas billed Medicare for 1,479 services in 2024

CMS data shows 1,479 Medicare services from Dr. Thomas across 7 procedure codes in 2024, for 387 Medicare patients. Medicare paid $146,471 for them.

Medicare services, 20241,479
Medicare patients387
Paid by Medicare$146,471
Procedure codes7

Dr. Thomas' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1,6212024: 1,4799%

Where Dr. Thomas' Medicare services took place, 2024

  • In an office36725%
  • In a facility1,11275%

Dr. Thomas compared with the Hawaii median for infectious disease specialists, 2024

  • Dr. Thomas
  • Hawaii median
Medicare services
1,479vs 3704.0 times
Medicare patients
387vs 1263.1 times
Part D claims
966vs 1208.1 times

Medians across 33 infectious disease specialists in Hawaii with Dmand AI profiles that report each measure.

Dr. Thomas' 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.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Benjamin Stuart Thomas treated 387 Medicare patients in 2024, average age 74

CMS counts 387 Medicare patients who saw Dr. Thomas in 2024. The largest group is 65 to 74, with 143 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 20% are also on Medicaid. Their average risk score is 3.49, 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. Thomas' median patient age at 70, with 41% women.

Medicare patients, 2024387
Average age74
Average risk score3.49
Also on Medicaid20%

Dr. Thomas' Medicare patients by age, 2024

Dr. Thomas' Medicare patients by sex, 2024

  • Women17044%
  • Men21756%

Chronic conditions among Dr. Thomas' Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Chronic kidney disease60%
  4. Diabetes60%
  5. Arthritis45%
  6. Ischemic heart disease42%
  7. Atrial fibrillation41%
  8. Heart failure41%

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

Dr. Thomas' 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

  • Women41%
  • Men57%

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

Dr. Benjamin Stuart Thomas wrote 1,144 Medicare Part D claims in 2024

In 2024, Dr. Thomas wrote 1,144 Medicare Part D claims for 201 patients. 90% of them were for generic drugs. CMS names the drug for 966 of them, across 25 drugs with 11 or more claims each, at $718,366 in total drug cost. In 2023, CMS named 651 claims across 20 drugs.

Part D claims, 20241,144
Drugs named by CMS25
Total drug cost$718,366
Part D patients201

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

  • Generic1,033 claims90%
  • Brand-name111 claims10%

Dr. Thomas' 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. Thomas' Part D claims, 2024

  • Antibiotics75%862 of 1,144 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: 6512024: 96648%

Drugs named by CMS: 25 in 2024, 20 in 2023.

See all prescribing by Dr. Thomas

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. Benjamin Stuart Thomas scored 94 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 94 out of 100 for Dr. Thomas for performance year 2024, reported individually. CMS lists Dr. Thomas as offering telehealth.

Offers telehealth
Yes

Dr. Thomas' MIPS scores, performance year 2024

  • 94of 100Final score
  • 72.1of 100Quality
  • 100of 100Promoting Interoperability
  • 40of 100Improvement Activities
  • 85of 100Cost

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

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Dr. Benjamin Stuart Thomas has 13 publications on record

Dmand AI links 13 papers to Dr. Thomas, published from 2011 to 2016. 2014 was the busiest year, with 2. The most frequent topics are Missouri, Sepsis and International Classification of Diseases. Dr. Thomas has published most often in J Clin Microbiol. Dr. Thomas' most frequent co-authors are Victoria J. Fraser, MD, Todd Blake Seto, MD and William Kien Ki Lau, MD.

Papers13
Years published2011 to 2016

Dr. Thomas' papers by year, 2011 to 2016

Topics Dr. Thomas writes about most

  • Missouri
  • Sepsis
  • International Classification of Diseases
  • Tertiary Care Centers
  • Clinical Coding
  • Gram-Positive Bacterial Infections
  • Hospital Mortality
  • Meningitis, Bacterial

Dr. Thomas' most frequent co-authors

Recent publications by Dr. Thomas

See all 13 publications and co-authors

See who Dr. Thomas researches with

Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Thomas works with, so you can find a warm path to the right infectious disease specialists.

How network discovery works

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

Dr. Benjamin Stuart Thomas received $4,035 in industry payments from 2017 to 2025

CMS Open Payments shows 219 general payments to Dr. Thomas from 11 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 96% of the total. Insmed, Inc. paid the most, $2,425.

General payments to Dr. Thomas by program year, 2017 to 2025

General payments to Dr. Thomas by kind, 2017 to 2025

$4Kin total
  • Food and beverage$3,87096%
  • Education$1654%

Companies that paid Dr. Thomas the most, 2017 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Thomas

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

Dr. Benjamin Stuart Thomas graduated from Mercer University School of Medicine

Dr. Thomas graduated from Mercer University School of Medicine in 2009.

  1. Medical schoolMercer University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Benjamin Stuart Thomas'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)
State medians for the same specialtyDmand AI Peer Benchmarks
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)
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)
Training, board certification and membershipsDmand AI Professional Profile Data
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. Benjamin Stuart Thomas

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. Benjamin Stuart Thomas' NPI number?

Dr. Benjamin Stuart Thomas' NPI number is 1164658019. It was assigned on June 5, 2009, and it is active in the NPI Registry.

What kind of doctor is Dr. Benjamin Stuart Thomas?

Dr. Benjamin Stuart Thomas is an infectious disease specialist in Kailua, Hawaii. The primary specialty in the NPI Registry is Infectious Disease Physician (taxonomy code 207RI0200X).

Where does Dr. Benjamin Stuart Thomas practice?

Dr. Thomas practices at 640 Ulukahiki St, Kailua, HI 96734. Dr. Thomas' primary practice is Adventist Health Castle in Kailua, Hawaii, part of Adventist Health. Dmand AI also links Dr. Thomas to 2 hospitals.

What is Dr. Benjamin Stuart Thomas' office phone number?

The practice phone on file for Dr. Thomas is (808) 263-5015.

What is Dr. Benjamin Stuart Thomas' medical license number?

Dr. Thomas holds Hawaii license MD-18023, one of the licenses on file in 3 states.

Which states has Dr. Benjamin Stuart Thomas been licensed in?

Dmand AI has state licenses on file for Dr. Thomas in Hawaii, Georgia and Missouri.

Which hospitals is Dr. Benjamin Stuart Thomas affiliated with?

Dr. Thomas practices at Adventist Health Castle in Kailua, Hawaii. Dr. Thomas is also affiliated with The Queen's Medical Center. Dmand AI links Dr. Thomas to 2 more hospitals.

What medical group is Dr. Benjamin Stuart Thomas part of?

Dr. Thomas is linked to Hilo Benioff Medical Center.

Does Dr. Benjamin Stuart Thomas accept Medicare?

Yes. CMS data shows Dr. Thomas billed Medicare for 1,479 services in 2024.

Does Dr. Benjamin Stuart Thomas offer telehealth?

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

Show 9 more questionsShow fewer questions

What is Dr. Benjamin Stuart Thomas' MIPS score?

Dr. Thomas' MIPS final score for performance year 2024 is 94 out of 100, reported individually.

How many Medicare patients does Dr. Benjamin Stuart Thomas see?

CMS counts 387 Medicare patients who saw Dr. Thomas in 2024, with an average age of 74.

What services does Dr. Benjamin Stuart Thomas bill to Medicare?

In 2024, Dr. Thomas' most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99223) and office visit, established patient (99214).

Where did Dr. Benjamin Stuart Thomas go to medical school?

Dr. Thomas graduated from Mercer University School of Medicine in 2009.

What drugs does Dr. Benjamin Stuart Thomas prescribe most?

In 2024 Medicare Part D data, Dr. Thomas' most prescribed drugs by claims were Ertapenem, Ceftriaxone and Daptomycin.

Has Dr. Benjamin Stuart Thomas received payments from drug or device companies?

CMS Open Payments shows $4,035 in general payments to Dr. Thomas from 11 companies from 2017 to 2025. The largest total came from Insmed, Inc.

How long has Dr. Benjamin Stuart Thomas been practicing?

Dr. Thomas graduated from medical school in 2009, 17 years ago.

Does Dr. Benjamin Stuart Thomas do research?

Dmand AI links 13 publications to Dr. Thomas, published from 2011 to 2016.

Who does Dr. Benjamin Stuart Thomas publish with?

Dr. Thomas' most frequent co-authors are Victoria J. Fraser, MD (4 shared papers), Todd Blake Seto, MD (2 shared papers) and William Kien Ki Lau, MD (1 shared paper).

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