NPPES file of Aug 9, 2026

Donald R. Marion, OD

Optometrist · Princeton, IL

Donald R. Marion, OD is an optometrist with a practice address in Princeton, Illinois, and NPI 1952488397, issued on Nov 1, 2006. Check the license (Illinois 046008161, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1952488397
Name
Donald R. Marion
Credential
OD
Primary taxonomy
Optometrist 152W00000X
License number
046008161 IL
Self-reported in NPPES; status is on the state search
Practice location
2 Park Avenue West, Princeton, IL 61356
Phone
(815) 879-2020
Enumerated
Nov 1, 2006
Record last updated
Dec 29, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(815) 879-2001
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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Verify Donald R. Marion 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 046008161
    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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39% fewer Medicare Part D claims than the average optometrist in 2024

168 Medicare Part D claims for 40 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.

  1. Donald Marion168
  2. Specialty average277

Most prescribed

  1. Latanoprost88 claims
  2. Timolol Maleate24 claims
  3. Lumigan16 claims
  4. Travoprost12 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.

Donald R. Marion among 2,697 optometrist records in Illinois

Donald R. Marion, OD 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 2006, is newer than 8% of them.

  • NPI issued2006 · 8% of these records are older, 63% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileNo · 56% of these records are
  • Record last updated2010 · 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).

3 optometrist records list a practice address in Princeton

They are 3 of the 126 NPPES records with a practice address in Princeton, and 2,697 optometrist records in Illinois.

The 8 optometrist records with the nearest ZIP codes

  1. Jeffrey Dzik, O.D.Princeton, IL 613561912932807
  2. Jon McCutchan, ODPrinceton, IL 613561104812650
  3. Joseph Jackson, ODPeru, IL 613541649352691
  4. Allyson Lamkin, ODPeru, IL 613541497678890
  5. Chase Ludford, ODPeru, IL 613541528945581
  6. David Ludford, ODPeru, IL 613541235115338
  7. Anne Neumann, O.D.Peru, IL 613541952689754
  8. Michael Rooney, ODPeru, IL 613541013993112

Common questions

What is Donald R. Marion, OD's NPI number?

Donald R. Marion, OD's National Provider Identifier (NPI) is 1952488397, issued on Nov 1, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Donald R. Marion, OD located?

The NPPES record lists a practice address at 2 Park Avenue West, Princeton, IL, 61356. Phone: (815) 879-2020. Providers update this record themselves, so call before visiting.

How can I verify Donald R. Marion, OD's license?

NPPES lists Illinois license number 046008161, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.

How much does Donald R. Marion, OD prescribe under Medicare Part D?

In 2024, Donald R. Marion, OD had 168 Medicare Part D claims for 40 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.