Registry data as of Aug 27, 2026

Matthew Karowe, M.D.

Gastroenterology Physician · Boulder, CO

Matthew Karowe, M.D. is a gastroenterology physician with a practice address in Boulder, Colorado, and NPI 1851310478, issued on Jul 18, 2006. Check the license on the Colorado Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1851310478
Name
Matthew Karowe
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
Practice location
1755 48TH St, Boulder, CO 80301
Phone
(303) 604-5000
Enumerated
Jul 18, 2006
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1755 48TH St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Dean Beasley, M.D.Family Medicine Physician1295718633
  2. William Burton, M.D.Sports Medicine (Family Medicine) Physician1871576991
  3. Jason Cannell, DOFamily Medicine Physician1841279940
  4. Zara Frankel, MDFamily Medicine Physician1437141017
  5. Cheryl Grasmick, P.A.Physician Assistant1417930314
  6. Sue Griffith, P.A.Physician Assistant1134103286

Verify Matthew Karowe in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersColorado Medical BoardCheck the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Open the Colorado license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

48% fewer Medicare Part D claims than the average gastroenterology physician in 2024

440 Medicare Part D claims for 149 beneficiaries, against an average of 848 among the 13,066 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.

  1. Matthew Karowe440
  2. Specialty average848

Most prescribed

  1. Pantoprazole Sodium96 claims
  2. Famotidine91 claims
  3. Budesonide Dr33 claims
  4. Omeprazole33 claims
  5. Humira(Cf) Pen29 claims
  6. Dexlansoprazole Dr19 claims

Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.

Industry payments in 2024: $92.91

4 payments, mostly food and beverage; the largest payer was Gilead Sciences, Inc.. The 10,593 providers of this specialty with any payment received $4,948.62 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Matthew Karowe$92.91
  2. Specialty average$4,948.62

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Gastroenterology Physician providers in Colorado

There are 272 gastroenterology physician records in Colorado.

Other gastroenterology physician records in Colorado

  1. David Adams, MDUsaf Academy, CO1477521011
  2. Douglas Adler, M.D.Colorado Springs, CO1891748687
  3. Abdullah Al-ShahraniAurora, CO1033598297
  4. Sam Anouna, M.D.Thornton, CO1639119365
  5. Kevin Ashby, M.D.Durango, CO1245209907
  6. Augustin Attwell, MDLakewood, CO1275620304
  7. Gregory Austin, MDAurora, CO1750503876
  8. Arash Babaei, M.D.Denver, CO1598716482
  9. Jehad Barakat, MDCentennial, CO1770598229
  10. Collin Beckstrom, DOCentennial, CO1558999482

Common questions

What is Matthew Karowe, M.D.'s NPI number?

Matthew Karowe, M.D.'s National Provider Identifier (NPI) is 1851310478, issued on Jul 18, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Matthew Karowe, M.D. located?

The NPPES record lists a practice address at 1755 48TH St, Boulder, CO, 80301. Phone: (303) 604-5000. Providers update this record themselves, so call before visiting.

How can I verify Matthew Karowe, M.D.'s license?

Search the Colorado Medical Board at https://dpo.colorado.gov/Medical. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Matthew Karowe, M.D. prescribe under Medicare Part D?

In 2024, Matthew Karowe, M.D. had 440 Medicare Part D claims for 149 beneficiaries; the average among gastroenterology physician prescribers was 848. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.