Dr. Stuart J. Thomas, MD

  • Clackamas, OR
  • Gastroenterologist
NPI1639445471
Medicare services, 2022
164
Part D claims, 2024
54
Publications
3
Industry payments
$634
Affiliated sites
1
Practice address
9900 Se Sunnyside Rd, Clackamas, OR 97015-9777
Practice phone
Call (800) 813-2000
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

Kfhp Portland Metropolitan Area - Clackamas (9900 SE Sunnyside Rd)

Multi-specialty group site · Clackamas, Oregon

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Dr. Stuart J. Thomas is a gastroenterologist in Clackamas, Oregon

Dr. Thomas practices at Kfhp Portland Metropolitan Area - Clackamas (9900 SE Sunnyside Rd) in Clackamas, Oregon.

Dr. Thomas' NPI, 1639445471, was assigned on March 27, 2012. Dr. Thomas graduated from Saint Louis University School of Medicine in 2012. Dr. Thomas holds Kansas license 0441030.

NPI and contact details
NPI enumeration date
March 27, 2012
NPI status
Active
Practice phone
(800) 813-2000
Professional email
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Personal email
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Mobile number
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Sex
Male
Estimated age
40
Medical school graduation
2012

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

Dr. Stuart J. Thomas practices at Kfhp Portland Metropolitan Area - Clackamas (9900 SE Sunnyside Rd) in Clackamas, Oregon

Dr. Thomas' primary practice is Kfhp Portland Metropolitan Area - Clackamas (9900 SE Sunnyside Rd), at 9900 Se Sunnyside Rd, Clackamas, OR 97015-9777. The practice phone is (800) 813-2000.

  • Kfhp Portland Metropolitan Area - Clackamas (9900 SE Sunnyside Rd)
    9900 Se Sunnyside Rd, Clackamas, OR 97015-9777Phone(800) 813-2000

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Stuart J. Thomas is affiliated with 1 site of care and 1 medical group

Dr. Thomas' primary practice is Kfhp Portland Metropolitan Area - Clackamas (9900 SE Sunnyside Rd) in Clackamas, Oregon. The medical group on file is Kaiser Permanente Northwest.

Kfhp Portland Metropolitan Area - Clackamas (9900 SE Sunnyside Rd)Multi-specialty group site · Clackamas, OregonPrimary
Kaiser Permanente NorthwestPrimary care group, Portland, OR

Sources: Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

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

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

EHR by site
SiteEHR vendor and product
Kfhp Portland Metropolitan Area - Clackamas (9900 SE Sunnyside Rd)Available with a free account

Source: Dmand AI Technology Install Data

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Dr. Stuart J. Thomas is one of 226 gastroenterologists in Oregon

Gastroenterology is Dr. Thomas' primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Thomas is licensed in Kansas.

Specialties and state licenses

  • Gastroenterology, KansasPrimaryLicense 441030 · taxonomy 207RG0100X

Gastroenterologists near Dr. Thomas

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. Stuart J. Thomas billed Medicare for 164 services in 2022

CMS data shows 164 Medicare services from Dr. Thomas across 7 procedure codes in 2022. Medicare paid $15,218 for them.

Medicare services, 2022164
Paid by Medicare$15,218
Procedure codes7

Dr. Thomas' Medicare services by type, 2021 to 2022

  • 2021
  • 2022
Surgery
2021: 3542022: 10271%
Office and hospital visits
2021: 2272022: 3585%
Tests and treatments
2021: 642022: 2758%

Where Dr. Thomas' Medicare services took place, 2022

  • In an office4125%
  • In a facility12375%

Dr. Thomas compared with the Oregon median for gastroenterologists, 2022

  • Dr. Thomas
  • Oregon median
Medicare services
164vs 27340% below
Part D claims
228vs 34033% below

Medians across 224 gastroenterologists in Oregon with Dmand AI profiles that report each measure.

Dr. Thomas' most billed Medicare procedure codes, 2022

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. Stuart J. Thomas' patients have a median age of 70

Across all payers, Dmand AI patient panel data puts Dr. Thomas' median patient age at 70, with 60% women.

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

  • Women60%
  • Men40%

Source: Dmand AI Patient Panel Data

Dr. Stuart J. Thomas wrote 54 Medicare Part D claims in 2024

In 2024, Dr. Thomas wrote 54 Medicare Part D claims for 23 patients. 69% of them were for generic drugs. They cover 3 drugs, with $8,837 in total drug cost. In 2022, CMS named 180 claims across 4 drugs.

Part D claims, 202454
Drugs named by CMS3
Total drug cost$8,837
Part D patients23

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

  • Generic37 claims69%
  • Brand-name17 claims31%

Dr. Thomas' most prescribed drugs by claims, 2023

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, 2022 to 2023

  • 2022
  • 2023
Claims for drugs CMS names
2022: 1802023: 22827%

Drugs named by CMS: 3 in 2023, 4 in 2022.

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

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Dr. Stuart J. Thomas has 3 publications on record

Dmand AI links 3 papers to Dr. Thomas, published from 2015 to 2017. Dr. Thomas' most frequent co-author is Douglas A. Corley, MD.

Papers3
Years published2015 to 2017

Dr. Thomas' most frequent co-authors

Recent publications by Dr. Thomas

See all 3 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 gastroenterologists.

How network discovery works

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

Dr. Stuart J. Thomas received $634 in industry payments from 2016 to 2020

CMS Open Payments shows 30 general payments to Dr. Thomas from 9 drug and device companies from 2016 to 2020. Food and beverage make up the largest share, 98% of the total. Abbvie Inc. paid the most, $285.

General payments to Dr. Thomas by program year, 2016 to 2020

General payments to Dr. Thomas by kind, 2016 to 2020

$634in total
  • Food and beverage$61998%
  • Education$152%

Companies that paid Dr. Thomas the most, 2016 to 2020

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. Stuart J. Thomas graduated from Saint Louis University School of Medicine

Dr. Thomas graduated from Saint Louis University School of Medicine in 2012.

  1. Medical schoolSaint Louis University School of Medicine

Source: Dmand AI Professional Profile Data

Sources for Dr. Stuart J. 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 DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Primary practice, affiliations and health systemDmand AI Affiliation DataDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
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 Data
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)
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. Stuart J. 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. Stuart J. Thomas' NPI number?

Dr. Stuart J. Thomas' NPI number is 1639445471. It was assigned on March 27, 2012, and it is active in the NPI Registry.

What kind of doctor is Dr. Stuart J. Thomas?

Dr. Stuart J. Thomas is a gastroenterologist in Clackamas, Oregon. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. Stuart J. Thomas practice?

Dr. Thomas practices at 9900 Se Sunnyside Rd, Clackamas, OR 97015-9777. Dr. Thomas' primary practice is Kfhp Portland Metropolitan Area - Clackamas (9900 SE Sunnyside Rd) in Clackamas, Oregon.

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

The practice phone on file for Dr. Thomas is (800) 813-2000.

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

Dr. Thomas holds Kansas license 0441030.

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

Dr. Thomas is linked to Kaiser Permanente Northwest.

Does Dr. Stuart J. Thomas accept Medicare?

Yes. CMS data shows Dr. Thomas billed Medicare for 164 services in 2022.

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

In 2022, Dr. Thomas' most billed Medicare services were surgery: digestive system (45385), digestive system test (91200) and surgery: digestive system (43239).

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

Dr. Thomas graduated from Saint Louis University School of Medicine in 2012.

What drugs does Dr. Stuart J. Thomas prescribe most?

In 2023 Medicare Part D data, Dr. Thomas' most prescribed drugs by claims were Gavilyte-C, Pantoprazole Sodium and Lubiprostone.

Show 4 more questionsShow fewer questions

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

CMS Open Payments shows $634 in general payments to Dr. Thomas from 9 companies from 2016 to 2020. The largest total came from Abbvie Inc.

How long has Dr. Stuart J. Thomas been practicing?

Dr. Thomas graduated from medical school in 2012, 14 years ago.

Does Dr. Stuart J. Thomas do research?

Dmand AI links 3 publications to Dr. Thomas, published from 2015 to 2017.

Who does Dr. Stuart J. Thomas publish with?

Dr. Thomas' most frequent co-authors are Douglas A. Corley, MD (2 shared papers).

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