Marian Ruth Walker, O.D.
Optometrist · Dubuque, IA
Marian Ruth Walker, O.D. is an optometrist with a practice address in Dubuque, Iowa, and NPI 1801842562, issued on May 25, 2006. Check the license (Iowa 02044, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Marian Ruth Walker
- Credential
- O.D.
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- 02044 IA
046-008889 IL
2610-035 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1500 Associates Dr, Dubuque, IA 52002
- Phone
- (563) 584-4415
- Enumerated
- May 25, 2006
- Record last updated
- Jul 22, 2011 (not updated in 15 years: call before relying on the address or phone)
- Fax
- (563) 584-4256
- Medicaid ID
- 014116 IA
- Entity
- Type 1 · individual
8 nearest optometrist records → All 676 in Iowa → Look up another NPI →
Also registered at 1500 Associates Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Edward Alt, MDObstetrics & Gynecology Physician1548432727
- Matthew Arensdorff, O.D.Optometrist1255644621
- Daniel Armstrong, PHYSICIAN ASSISTANTMedical Physician Assistant1699909028
- Jeffrey Artioli, CRNACertified Registered Nurse Anesthetist1558006411
- William Auer, ODOptometrist1598334971
- Kent Baumann, M.D.Ophthalmology Physician1316999725
Verify Marian Ruth Walker in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Iowa board licenses this profession
Search for license 02044Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5% more Medicare Part D claims than the average optometrist in 2024
290 Medicare Part D claims for 70 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.
Most prescribed
- Latanoprost225 claims
- Neomycin-Polymyxin-Dexameth33 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: $63.32
3 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.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Marian Ruth Walker among 676 optometrist records in Iowa
Marian Ruth Walker, O.D. is one of 676 optometrist records with a practice address in Iowa. 76% 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 18% of them.
- NPI issued2006 · 18% of these records are older, 44% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 68% of these records are
- Record last updated2011 · 74% 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 Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
23 optometrist records list a practice address in Dubuque
They are 23 of the 1,468 NPPES records with a practice address in Dubuque, and 676 optometrist records in Iowa.
All 676 in Iowa → Every provider in Dubuque → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Matthew Arensdorff, O.D.Dubuque, IA 520021255644621
- David Auer, ODDubuque, IA 520021497735260
- William Auer, ODDubuque, IA 520021598334971
- Erica Da Silva, ODDubuque, IA 520021083363360
- Michelle Gardner, ODDubuque, IA 520021639383599
- Corey Kelly, O.D.Dubuque, IA 520021720166945
- Kelli Lecher, O.D.Dubuque, IA 520021255746525
- Steven Maxwell, O.D.Dubuque, IA 520021861457657
Common questions
What is Marian Ruth Walker, O.D.'s NPI number?
Marian Ruth Walker, O.D.'s National Provider Identifier (NPI) is 1801842562, issued on May 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Marian Ruth Walker, O.D. located?
The NPPES record lists a practice address at 1500 Associates Dr, Dubuque, IA, 52002. Phone: (563) 584-4415. Providers update this record themselves, so call before visiting.
How can I verify Marian Ruth Walker, O.D.'s license?
NPPES lists Iowa license number 02044, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.
How much does Marian Ruth Walker, O.D. prescribe under Medicare Part D?
In 2024, Marian Ruth Walker, O.D. had 290 Medicare Part D claims for 70 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.