NPPES file of Aug 9, 2026

Thomas A. Dettmer, O.D.

Optometrist · Osage Beach, MO

Thomas A. Dettmer, O.D. is an optometrist with a practice address in Osage Beach, Missouri, and NPI 1477548527, issued on Sep 14, 2005. Check the license (Missouri T03438, as entered in NPPES) with the Missouri 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
1477548527
Name
Thomas A. Dettmer
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
T03438 MO
Self-reported in NPPES; status is on the state search
Practice location
5962 Highway 54, Osage Beach, MO 65065
Phone
(573) 552-8569
Enumerated
Sep 14, 2005
Record last updated
Aug 17, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(573) 348-2747
Medicare enrollment
Enrolled (PECOS I20051201000075); accepts Medicare assignment
Medical or professional school
Illinois College Of Optometry At Chicago, 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 Thomas A. Dettmer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Missouri board licenses this profession
    Search for license T03438
    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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2.3 times the Medicare Part D claims of the average optometrist in 2024

648 Medicare Part D claims for 203 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 34% of claims.

  1. Thomas Dettmer648
  2. Specialty average277

Most prescribed

  1. Latanoprost192 claims
  2. Timolol Maleate95 claims
  3. Prednisolone Acetate91 claims
  4. Neomycin-Polymyxin-Dexameth70 claims
  5. Dorzolamide Hcl59 claims
  6. Doxycycline Hyclate29 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: $68.74

1 payment: 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. Thomas Dettmer$68.74
  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. Paige Hedgpath OdpcCamdenton, MO

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

Thomas A. Dettmer among 1,242 optometrist records in Missouri

Thomas A. Dettmer, O.D. is one of 1,242 optometrist records with a practice address in Missouri. 73% 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, 85% newer
  • In a Medicare fileYes · 73% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1995 · median 2007 among the 768 with a school on file
  • Record last updated2010 · 67% 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 Missouri practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in Missouri

There are 1,242 optometrist records in Missouri.

The 8 optometrist records with the nearest ZIP codes

  1. Erin Gagnon, O.D.Osage Beach, MO 650651356503494
  2. Medro Brodeur, ODOwensville, MO 650661821068487
  3. Brian Eveland, ODLake Ozark, MO 650491265449920
  4. Kelly Frisella, O.D.Lake Ozark, MO 650491750315065
  5. Lisa Groves, ODLake Ozark, MO 650491437182284
  6. Gary Giesler, O.D.Hermann, MO 650411396834552
  7. Devin ColemanLaurie, MO 650381457159790
  8. John Gazaway, ODLaurie, MO 650381114011913

Common questions

What is Thomas A. Dettmer, O.D.'s NPI number?

Thomas A. Dettmer, O.D.'s National Provider Identifier (NPI) is 1477548527, issued on Sep 14, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Thomas A. Dettmer, O.D. located?

The NPPES record lists a practice address at 5962 Highway 54, Osage Beach, MO, 65065. Phone: (573) 552-8569. Providers update this record themselves, so call before visiting.

How can I verify Thomas A. Dettmer, O.D.'s license?

NPPES lists Missouri license number T03438, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.

How much does Thomas A. Dettmer, O.D. prescribe under Medicare Part D?

In 2024, Thomas A. Dettmer, O.D. had 648 Medicare Part D claims for 203 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.