NPPES file of Aug 9, 2026

Mark D. Cumings, M.D.

Gastroenterology Physician · Olympia, WA

Mark D. Cumings, M.D. is a gastroenterology physician with a practice address in Olympia, Washington, and NPI 1629132584, issued on Dec 21, 2006. Check the license (Washington MD00042468, as entered in NPPES) on the Washington Medical Commission; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1629132584
Name
Mark D. Cumings
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
MD00042468 WA
Self-reported in NPPES; status is on the state search
Practice location
209lilly RD NE, Olympia, WA 98506
Phone
(360) 413-8250
Enumerated
Dec 21, 2006
Record last updated
Apr 21, 2021 (not updated in 5 years: call before relying on the address or phone)
Fax
(360) 413-8830
Medicare enrollment
Enrolled (PECOS I20070329000214); accepts Medicare assignment
Medical or professional school
Jc Edwards School Of Medicine, Marshall University, 1995
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Mark D. Cumings in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWashington Medical Commission
    Search for license MD00042468
    Check 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 Washington license search

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55% fewer Medicare Part D claims than the average gastroenterology physician in 2024

369 Medicare Part D claims for 135 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.

  1. Mark Cumings369
  2. Specialty average811

Most prescribed

  1. Pantoprazole Sodium59 claims
  2. Peg-3350 And Electrolytes37 claims
  3. Gavilyte-G35 claims
  4. Omeprazole32 claims
  5. Spironolactone20 claims
  6. Furosemide16 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.

Bills Medicare through one group practice

  1. Puget Sound Gastroenterology PLLCKirkland, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mark D. Cumings among 533 gastroenterology physician records in Washington

Mark D. Cumings, M.D. is one of 533 gastroenterology physician records with a practice address in Washington. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.

  • NPI issued2006 · 13% of these records are older, 48% newer
  • In a Medicare fileYes · 76% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated1995 · median 2003 among the 373 with a school on file
  • Record last updated2021 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Washington practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Gastroenterology Physician providers in Washington

There are 533 gastroenterology physician records in Washington.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Harpreet Brar, MDOlympia, WA 985061528058658
  2. Richard Elloway, MDOlympia, WA 985061003841958
  3. Rodney Joe, MDOlympia, WA 985061558342501
  4. James Kruidenier, MDOlympia, WA 985061497736573
  5. Maria Theresa Kurtz, D.O.Olympia, WA 985061750608329
  6. Lucas Leonard, M.D.Olympia, WA 985061992796528
  7. Benjamin Merrifield, MDOlympia, WA 985061083695167
  8. David Owens, M.D.Olympia, WA 985061144302159

Common questions

What is Mark D. Cumings, M.D.'s NPI number?

Mark D. Cumings, M.D.'s National Provider Identifier (NPI) is 1629132584, issued on Dec 21, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark D. Cumings, M.D. located?

The NPPES record lists a practice address at 209lilly RD NE, Olympia, WA, 98506. Phone: (360) 413-8250. Providers update this record themselves, so call before visiting.

How can I verify Mark D. Cumings, M.D.'s license?

NPPES lists Washington license number MD00042468, as entered by the provider. Search the Washington Medical Commission at https://wahelms.my.site.com/s/license-search. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Mark D. Cumings, M.D. prescribe under Medicare Part D?

In 2024, Mark D. Cumings, M.D. had 369 Medicare Part D claims for 135 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.