NPPES file of Aug 9, 2026

William Martin Grovenburg, OD

Optometrist · Collinsville, OK

William Martin Grovenburg, OD is an optometrist with a practice address in Collinsville, Oklahoma, and NPI 1336820547, issued on Jul 31, 2023. Check the license (Oklahoma 3225, as entered in NPPES) with the Oklahoma 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
1336820547
Name
William Martin Grovenburg
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License number
3225 OK
Self-reported in NPPES; status is on the state search
Practice location
1103 W Center St, Collinsville, OK 74021
Phone
(918) 371-3339
Enumerated
Jul 31, 2023
Record last updated
Feb 20, 2026
Fax
(918) 371-9600
Medicare enrollment
Enrolled (PECOS I20240605003820); accepts Medicare assignment
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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Also registered at 1103 W Center St

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

  1. Leonard Hart, O.D.Optometrist1518907765

Verify William Martin Grovenburg in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Oklahoma board licenses this profession
    Search for license 3225
    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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88% fewer Medicare Part D claims than the average optometrist in 2024

34 Medicare Part D claims for 25 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D.

  1. William Grovenburg34
  2. Specialty average277

Most prescribed

  1. Tobramycin-Dexamethasone13 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. Beatty-Jtjv LLCCollinsville, OK

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

2 optometrist records list a practice address in Collinsville

They are 2 of the 92 NPPES records with a practice address in Collinsville, and 892 optometrist records in Oklahoma.

Other optometrist records in Oklahoma

  1. Candace Acord, O.D.LHarrah, OK1932416930
  2. Britton Adams, ODShawnee, OK1447737960
  3. Daniel Adams, O.D.Stillwater, OK1487755898
  4. Kaylee Aguilar, ODEdmond, OK1215619556
  5. Faisal Ahmed, DOCTOR OF OPTOMETRYMidwest City, OK1417640194
  6. Laura Alexander, O.D.Lawton, OK1356601728
  7. Lykourgos AlexopoulosEdmond, OK1427721539
  8. Tyson Allard, O.D.Hobart, OK1013116524
  9. Nicholas Allensworth, ODEdmond, OK1730798281
  10. Jacob AllredGlenpool, OK1215729371

Common questions

What is William Martin Grovenburg, OD's NPI number?

William Martin Grovenburg, OD's National Provider Identifier (NPI) is 1336820547, issued on Jul 31, 2023. An NPI identifies a provider in billing; it is not a license.

Where is William Martin Grovenburg, OD located?

The NPPES record lists a practice address at 1103 W Center St, Collinsville, OK, 74021. Phone: (918) 371-3339. Providers update this record themselves, so call before visiting.

How can I verify William Martin Grovenburg, OD's license?

NPPES lists Oklahoma license number 3225, as entered by the provider. Search the Oklahoma board that licenses this profession; the NPPES record confirms identity only.

How much does William Martin Grovenburg, OD prescribe under Medicare Part D?

In 2024, William Martin Grovenburg, OD had 34 Medicare Part D claims for 25 beneficiaries; 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.