NPPES file of Aug 9, 2026

Diana Marie Douglas, O.D.

Optometrist · Warren, OH

Diana Marie Douglas, O.D. is an optometrist with a practice address in Warren, Ohio, and NPI 1144452459, issued on Aug 20, 2009. Check the license (Ohio 5534, 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
1144452459
Name
Diana Marie Douglas
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License numbers
5534 OH
1979 NC
Self-reported in NPPES; status is on the state search
Practice location
302 Niles Cortland RD NE, Warren, OH 44484
Phone
(330) 394-2020
Enumerated
Aug 20, 2009
Record last updated
Nov 21, 2025
Fax
(330) 395-7194
Medicare enrollment
Enrolled (PECOS I20091026000545); accepts Medicare assignment
Medical or professional school
Illinois College Of Optometry At Chicago, 1999
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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8 nearest optometrist records → All 2,443 in Ohio → Look up another NPI →

Also registered at 302 Niles Cortland RD NE

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

  1. Chad Douglas, O.D.Optometrist1609858240

Verify Diana Marie Douglas 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 5534    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
Find the Ohio license search

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Industry payments in 2024: $351.41

9 payments; by number, the most common kind was food and beverage; the largest payer was CooperVision 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. Diana Douglas$351.41
  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.

Bills Medicare through one group practice

  1. Douglas Family Eyecare, Inc.Warren, OH

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

Diana Marie Douglas among 2,443 optometrist records in Ohio

Diana Marie Douglas, 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 2009, is newer than 61% of them.

  • NPI issued2009 · 61% of these records are older, 37% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1999 · median 2006 among the 1,466 with a school on file
  • Record last updated2025 · 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).

Optometrist providers in Ohio

There are 2,443 optometrist records in Ohio.

All 2,443 in Ohio → Every provider in Warren → Optometrist nationwide →

The 8 optometrist records with the nearest ZIP codes

  1. Frank D'Apolito, O.D.Warren, OH 444841801898606
  2. Carla Darak-Bolino, O.D.Warren, OH 444841467454405
  3. Chad Douglas, O.D.Warren, OH 444841609858240
  4. Thomas Grischow, O.D.Warren, OH 444841932132818
  5. Nicholas Lawrence, O.D.Warren, OH 444841538475249
  6. Taylor Richards, ODWarren, OH 444841114619137
  7. Thomas Abruzzi, O.D.Warren, OH 444831588669790
  8. John Barnhart, O.D.Warren, OH 444831407975113

Common questions

What is Diana Marie Douglas, O.D.'s NPI number?

Diana Marie Douglas, O.D.'s National Provider Identifier (NPI) is 1144452459, issued on Aug 20, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Diana Marie Douglas, O.D. located?

The NPPES record lists a practice address at 302 Niles Cortland RD NE, Warren, OH, 44484. Phone: (330) 394-2020. Providers update this record themselves, so call before visiting.

How can I verify Diana Marie Douglas, O.D.'s license?

NPPES lists Ohio license number 5534, as entered by the provider. Search the Ohio board that licenses this profession; the NPPES record confirms identity 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.