Cathryn Lorraine Ahearn, OD
Optometrist · Hannibal, MO
Cathryn Lorraine Ahearn, OD is an optometrist with a practice address in Hannibal, Missouri, and NPI 1881606200, issued on Aug 13, 2006. Check the license (Missouri 2002002532, as entered in NPPES) with the Missouri board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Cathryn Lorraine Ahearn
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- 2002002532 MO
046009514 IL
Self-reported in NPPES; status is on the state search - Practice location
- 100 Medical Dr, Hannibal, MO 63401
- Phone
- (573) 221-5250
- Enumerated
- Aug 13, 2006
- Record last updated
- May 19, 2011 (not updated in 15 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080414000043); accepts Medicare assignment
- Medical or professional school
- University Of Missouri St Louis - School Of Optometry, 2001
- Entity
- Type 1 · individual
8 nearest optometrist records → All 1,242 in Missouri → Look up another NPI →
Also registered at 100 Medical Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Misty Bowen, D.O.Family Medicine Physician1881038834
Verify Cathryn Lorraine Ahearn in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Missouri board licenses this profession
Search for license 2002002532Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% fewer Medicare Part D claims than the average optometrist in 2024
259 Medicare Part D claims for 101 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Latanoprost117 claims
- Erythromycin34 claims
- Timolol Maleate28 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: $114.90
3 payments; by number, the most common kind was food and beverage; the largest payer was Astellas Pharma US 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.
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
- Quincy Physicians And Surgeons Clinic, PLLCHannibal, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Cathryn Lorraine Ahearn among 1,242 optometrist records in Missouri
Cathryn Lorraine Ahearn, OD 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 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 52% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2001 · median 2007 among the 768 with a school on file
- Record last updated2011 · 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.
All 1,242 in Missouri → Every provider in Hannibal → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Amy Knickerbocker, O.D.Hannibal, MO 634011578517306
- Elizabeth Monroe, O.D.Hannibal, MO 634011356687412
- Kenneth Mueller, O.D.Hannibal, MO 634011013966076
- Marshall Munch, O.D.Hannibal, MO 634011962441220
- Kent Wolber, O.D.Hannibal, MO 634011104883560
- Jessica Downs, ODWinfield, MO 633891811159882
- Carli HaysWentzville, MO 633851902471758
- Diane Jessen, O.D.Wentzville, MO 633851063573400
Common questions
What is Cathryn Lorraine Ahearn, OD's NPI number?
Cathryn Lorraine Ahearn, OD's National Provider Identifier (NPI) is 1881606200, issued on Aug 13, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Cathryn Lorraine Ahearn, OD located?
The NPPES record lists a practice address at 100 Medical Dr, Hannibal, MO, 63401. Phone: (573) 221-5250. Providers update this record themselves, so call before visiting.
How can I verify Cathryn Lorraine Ahearn, OD's license?
NPPES lists Missouri license number 2002002532, as entered by the provider. Search the Missouri board that licenses this profession; the NPPES record confirms identity only.
How much does Cathryn Lorraine Ahearn, OD prescribe under Medicare Part D?
In 2024, Cathryn Lorraine Ahearn, OD had 259 Medicare Part D claims for 101 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.