NPPES file of Aug 9, 2026

Mark A. Dumbauld, O.D.

Optometrist · East Palestine, OH

Mark A. Dumbauld, O.D. is an optometrist with a practice address in East Palestine, Ohio, and NPI 1891784658, issued on Oct 14, 2005. Check the license (Ohio 4276, as entered in NPPES) with the Ohio board that licenses this profession; 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
1891784658
Name
Mark A. Dumbauld
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
4276 OH
Self-reported in NPPES; status is on the state search
Practice location
55 W Martin St, East Palestine, OH 44413
Phone
(330) 426-3428
Enumerated
Oct 14, 2005
Record last updated
Jun 26, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(330) 426-3428
Medicaid ID
0843716 OH
Medicare enrollment
Enrolled (PECOS I20120406000331); accepts Medicare assignment
Medical or professional school
Ohio State University - College Of Optometry, 1991
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 A. Dumbauld in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Ohio board licenses this profession
    Search for license 4276
    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
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84% fewer Medicare Part D claims than the average optometrist in 2024

45 Medicare Part D claims, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 64% of claims.

  1. Mark Dumbauld45
  2. Specialty average277

Most prescribed

  1. Latanoprost28 claims
  2. Prednisolone Acetate12 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: $23.91

1 payment: food and beverage; the largest payer was Bausch & Lomb Americas Inc. The 34,453 providers of this specialty with any payment received $769.99 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Mark Dumbauld$23.91
  2. Specialty average$769.99

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

Mark A. Dumbauld among 2,443 optometrist records in Ohio

Mark A. Dumbauld, O.D. is one of 2,443 optometrist records with a practice address in Ohio. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 89% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1991 · median 2006 among the 1,466 with a school on file
  • Record last updated2008 · 70% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

1 optometrist record lists a practice address in East Palestine

They are 1 of the 46 NPPES records with a practice address in East Palestine, and 2,443 optometrist records in Ohio.

The 8 optometrist records with the nearest ZIP codes

  1. Sawyer Ellis, ODCortland, OH 444101679195531
  2. Martin Ellis, O.D.Cortland, OH 444101871664391
  3. Gregory Fagert, O.D.Columbiana, OH 444081366521726
  4. Randall Maceyko, O.D.Columbiana, OH 444081679553150
  5. Chad Moreschi, O.D.Columbiana, OH 444081881663607
  6. Betsy Ahlquist, O.D.Canfield, OH 444061578540092
  7. Michael Ambrose, O.D.Canfield, OH 444061922169713
  8. Tiffany Kubis, O.D.Canfield, OH 444061154779692

Common questions

What is Mark A. Dumbauld, O.D.'s NPI number?

Mark A. Dumbauld, O.D.'s National Provider Identifier (NPI) is 1891784658, issued on Oct 14, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Mark A. Dumbauld, O.D. located?

The NPPES record lists a practice address at 55 W Martin St, East Palestine, OH, 44413. Phone: (330) 426-3428. Providers update this record themselves, so call before visiting.

How can I verify Mark A. Dumbauld, O.D.'s license?

NPPES lists Ohio license number 4276, as entered by the provider. Search the Ohio board that licenses this profession; the NPPES record confirms identity only.

How much does Mark A. Dumbauld, O.D. prescribe under Medicare Part D?

In 2024, Mark A. Dumbauld, O.D. had 45 Medicare Part D claims; the average among optometrist prescribers was 277. 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.