NPPES file of Aug 9, 2026

Martin J. Theobald, O.D.

Optometrist · Duluth, MN

Martin J. Theobald, O.D. is an optometrist with a practice address in Duluth, Minnesota, and NPI 1609842210, issued on Feb 23, 2006. Check the license (Minnesota 2549, as entered in NPPES) with the Minnesota 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
1609842210
Name
Martin J. Theobald
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
2549 MN
Self-reported in NPPES; status is on the state search
Practice location
3308 W Arrowhead RD, Duluth, MN 55811
Phone
(218) 727-6400
Enumerated
Feb 23, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20100922000701); accepts Medicare assignment
Medical or professional school
University Of Houston - College Of Optometry, 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.
Download card Updates feed

Also registered at 3308 W Arrowhead RD

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

  1. Teresa Theobald, O.D.Optometrist1902872518

Verify Martin J. Theobald in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Minnesota board licenses this profession
    Search for license 2549
    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 Minnesota 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.

Is this page about you? You can ask us to correct, restrict or remove it: how.

34% more Medicare Part D claims than the average optometrist in 2024

372 Medicare Part D claims for 90 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 25% of claims.

  1. Martin Theobald372
  2. Specialty average277

Most prescribed

  1. Latanoprost195 claims
  2. Dorzolamide Hcl41 claims
  3. Timolol Maleate35 claims
  4. Dorzolamide-Timolol32 claims
  5. Brimonidine Tartrate12 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. Theobald Family Eye Care, LLPDuluth, MN

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

Optometrist providers in Minnesota

There are 1,142 optometrist records in Minnesota.

Other optometrist records in Minnesota

  1. Michael Ackermann, ODLake City, MN1063441830
  2. Bradley Adams, O.D.Brainerd, MN1477652212
  3. Kristin Adams, ODMinneapolis, MN1447779442
  4. Anna Aho, ODAnnandale, MN1518537786
  5. Kamran Ahrar, ODLakeville, MN1134156755
  6. Stephen Akre, O.D.New Ulm, MN1881680056
  7. Afrouz Alai, O.DCottage Grove, MN1861920266
  8. Mitchell Albers, O.D.Maplewood, MN1407806763
  9. Toni Albrecht, ODEdina, MN1679580500
  10. Franklin AlexanderWhite Bear Lake, MN1134955933

Common questions

What is Martin J. Theobald, O.D.'s NPI number?

Martin J. Theobald, O.D.'s National Provider Identifier (NPI) is 1609842210, issued on Feb 23, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Martin J. Theobald, O.D. located?

The NPPES record lists a practice address at 3308 W Arrowhead RD, Duluth, MN, 55811. Phone: (218) 727-6400. Providers update this record themselves, so call before visiting.

How can I verify Martin J. Theobald, O.D.'s license?

NPPES lists Minnesota license number 2549, as entered by the provider. Search the Minnesota board that licenses this profession; the NPPES record confirms identity only.

How much does Martin J. Theobald, O.D. prescribe under Medicare Part D?

In 2024, Martin J. Theobald, O.D. had 372 Medicare Part D claims for 90 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.