NPPES file of Aug 9, 2026

Keith R. Hamm, O.D.

Optometrist · Shiloh, IL

Keith R. Hamm, O.D. is an optometrist with a practice address in Shiloh, Illinois, and NPI 1225023401, issued on Sep 14, 2005. Check the license (Illinois 046-009444, as entered in NPPES) with the Illinois 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1225023401
Name
Keith R. Hamm
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License numbers
046-009444 IL
20020153161 MO
Self-reported in NPPES; status is on the state search
Practice location
3248 Green Mount Crossing Dr, Shiloh, IL 62269
Phone
(618) 622-9225
Enumerated
Sep 14, 2005
Record last updated
Aug 17, 2022
Fax
(618) 624-6731
Medicaid IDs
046-009444 MO
046-009444 IL
Medicare enrollment
Enrolled (PECOS I20050517000181); accepts Medicare assignment
Medical or professional school
Southern College Of Optometry, 2002
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 Keith R. Hamm in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Illinois board licenses this profession
    Search for license 046-009444
    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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16% fewer Medicare Part D claims than the average optometrist in 2024

232 Medicare Part D claims for 92 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 43% of claims.

  1. Keith Hamm232
  2. Specialty average277

Most prescribed

  1. Latanoprost105 claims
  2. Timolol Maleate22 claims
  3. Loteprednol Etabonate16 claims
  4. Lumigan13 claims
  5. Prednisolone Acetate13 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score100.0
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $377.20

12 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas 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. Keith Hamm$377.20
  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. Avc Optometry IncFreeburg, IL

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

Keith R. Hamm among 2,697 optometrist records in Illinois

Keith R. Hamm, O.D. is one of 2,697 optometrist records with a practice address in Illinois. 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 92% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 56% of these records are
  • Graduated2002 · median 2008 among the 1,513 with a school on file
  • Record last updated2022 · 68% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Optometrist providers in Illinois

There are 2,697 optometrist records in Illinois.

The 8 optometrist records with the nearest ZIP codes

  1. Kelli Cadion Crago, ODO Fallon, IL 622691386752681
  2. David Ernst, O.D.O Fallon, IL 622691306076518
  3. Vivian Kloke, ODO Fallon, IL 622691346358645
  4. Aideen McEnaney, ODO Fallon, IL 622691770343246
  5. Sherri Morris, ODO Fallon, IL 622691033534086
  6. Holly Regel, ODO Fallon, IL 622691679144067
  7. Chih Jen Wang, O.D.O Fallon, IL 622691861443079
  8. J Weber, O.D.O Fallon, IL 622691205845187

Common questions

What is Keith R. Hamm, O.D.'s NPI number?

Keith R. Hamm, O.D.'s National Provider Identifier (NPI) is 1225023401, issued on Sep 14, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Keith R. Hamm, O.D. located?

The NPPES record lists a practice address at 3248 Green Mount Crossing Dr, Shiloh, IL, 62269. Phone: (618) 622-9225. Providers update this record themselves, so call before visiting.

How can I verify Keith R. Hamm, O.D.'s license?

NPPES lists Illinois license number 046-009444, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Keith R. Hamm, O.D. prescribe under Medicare Part D?

In 2024, Keith R. Hamm, O.D. had 232 Medicare Part D claims for 92 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

What is Keith R. Hamm, O.D.'s MIPS final score?

The 2023 MIPS final score is 100 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.