NPPES file of Aug 9, 2026

Thomas G. Geiler, O.D.

Optometrist · Prescott, AZ

Thomas G. Geiler, O.D. is an optometrist with a practice address in Prescott, Arizona, and NPI 1841418290, issued on Apr 23, 2007. Check the license (Arizona #308, as entered in NPPES) with the Arizona 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
1841418290
Name
Thomas G. Geiler
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
#308 AZ
Self-reported in NPPES; status is on the state search
Practice location
1000 Willow Creek RD Ste J, Prescott, AZ 86301
Phone
(928) 445-2060
Enumerated
Apr 23, 2007
Record last updated
Oct 29, 2007 (not updated in 19 years: call before relying on the address or phone)
Fax
(928) 445-2067
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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8 nearest optometrist records → All 1,336 in Arizona → Look up another NPI →

Also registered at 1000 Willow Creek RD Ste J

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

  1. Todd Geiler, O.D.Optometrist1851418719

Verify Thomas G. Geiler in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Arizona board licenses this profession
    Search for license #308    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 Arizona license search

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86% fewer Medicare Part D claims than the average optometrist in 2024

39 Medicare Part D claims for 13 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims.

  1. Thomas Geiler39
  2. Specialty average277

Most prescribed

  1. Timolol Maleate11 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.

Thomas G. Geiler among 1,336 optometrist records in Arizona

Thomas G. Geiler, O.D. is one of 1,336 optometrist records with a practice address in Arizona. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 38% of them.

  • NPI issued2007 · 38% of these records are older, 51% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 56% of these records are
  • Record last updated2007 · 62% 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 Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

26 optometrist records list a practice address in Prescott

They are 26 of the 1,818 NPPES records with a practice address in Prescott, and 1,336 optometrist records in Arizona.

All 1,336 in Arizona → Every provider in Prescott → Optometrist nationwide →

The 8 optometrist records with the nearest ZIP codes

  1. Rodney Bauer, ODPrescott, AZ 863011811182264
  2. Amy Champ, ODPrescott, AZ 863011649238346
  3. Todd Geiler, O.D.Prescott, AZ 863011851418719
  4. John Good, ODPrescott, AZ 863011831283498
  5. Priscilla Lee, O.D.Prescott, AZ 863011235126129
  6. John Markham, O DPrescott, AZ 863011225094550
  7. Steven Meyers, ODPrescott, AZ 863011467410225
  8. Carrie Miranda, O. D.Prescott, AZ 863011306896303

Common questions

What is Thomas G. Geiler, O.D.'s NPI number?

Thomas G. Geiler, O.D.'s National Provider Identifier (NPI) is 1841418290, issued on Apr 23, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Thomas G. Geiler, O.D. located?

The NPPES record lists a practice address at 1000 Willow Creek RD Ste J, Prescott, AZ, 86301. Phone: (928) 445-2060. Providers update this record themselves, so call before visiting.

How can I verify Thomas G. Geiler, O.D.'s license?

NPPES lists Arizona license number #308, as entered by the provider. Search the Arizona board that licenses this profession; the NPPES record confirms identity only.

How much does Thomas G. Geiler, O.D. prescribe under Medicare Part D?

In 2024, Thomas G. Geiler, O.D. had 39 Medicare Part D claims for 13 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.

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.