NPPES file of Aug 9, 2026

Maria C. Ruduski - Downey, O.D.

Optometrist · Shillington, PA

Maria C. Ruduski - Downey, O.D. is an optometrist with a practice address in Shillington, Pennsylvania, and NPI 1679543664, issued on Jan 24, 2006. Check the license (Pennsylvania OEG000210, as entered in NPPES) with the Pennsylvania 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
1679543664
Name
Maria C. Ruduski - Downey
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License number
OEG000210 PA
Self-reported in NPPES; status is on the state search
Practice location
453 E Lancaster Ave, Shillington, PA 19607
Phone
(610) 775-3321
Enumerated
Jan 24, 2006
Record last updated
Mar 17, 2018 (not updated in 8 years: call before relying on the address or phone)
Fax
(610) 775-8542
Medicare enrollment
Enrolled (PECOS I20100322000219); accepts Medicare assignment
Medical or professional school
State University Of New York - State College Optometry, 1998
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.
Download card Updates feed

Also registered at 453 E Lancaster Ave

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

  1. Michael Mohn, O.D.Optometrist1023016284
  2. Karen Rule, O.D.Optometrist1164492039
  3. W. Rule, O.D.Optometrist1790783959

Verify Maria C. Ruduski - Downey in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
    Search for license OEG000210
    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 Pennsylvania license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

38% fewer Medicare Part D claims than the average optometrist in 2024

171 Medicare Part D claims for 66 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.

  1. Maria Ruduski - Downey171
  2. Specialty average277

Most prescribed

  1. Latanoprost80 claims
  2. Neomycin-Polymyxin-Dexameth16 claims
  3. Erythromycin11 claims
  4. Lumigan11 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: $67.03

4 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. 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. Maria Ruduski - Downey$67.03
  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 3 group practices

  1. Margaret A. Shirk O.D. And Associates IncElverson, PA
  2. Renny S Sardella OD PCCoatesville, PA
  3. Shillington Eye AssociatesShillington, PA

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

Maria C. Ruduski - Downey among 2,640 optometrist records in Pennsylvania

Maria C. Ruduski - Downey, O.D. is one of 2,640 optometrist records with a practice address in Pennsylvania. 72% 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 14% of them.

  • NPI issued2006 · 14% of these records are older, 48% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 60% of these records are
  • Graduated1998 · median 2004 among the 1,588 with a school on file
  • Record last updated2018 · 69% 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 Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

4 optometrist records list a practice address in Shillington

They are 4 of the 141 NPPES records with a practice address in Shillington, and 2,640 optometrist records in Pennsylvania.

The 8 optometrist records with the nearest ZIP codes

  1. Lisa McDevitt, O.D.Reading, PA 196071750384863
  2. Michael Mohn, O.D.Shillington, PA 196071023016284
  3. W. Rule, O.D.Shillington, PA 196071790783959
  4. Karen Rule, O.D.Shillington, PA 196071164492039
  5. Daivd Altenderfer, ODReading, PA 196061194848994
  6. Julie Foster, ODReading, PA 196061457812505
  7. David Foster, O.D.Reading, PA 196061770575276
  8. Jacquelyn Horst, O.D.Reading, PA 196061164652772

Common questions

What is Maria C. Ruduski - Downey, O.D.'s NPI number?

Maria C. Ruduski - Downey, O.D.'s National Provider Identifier (NPI) is 1679543664, issued on Jan 24, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Maria C. Ruduski - Downey, O.D. located?

The NPPES record lists a practice address at 453 E Lancaster Ave, Shillington, PA, 19607. Phone: (610) 775-3321. Providers update this record themselves, so call before visiting.

How can I verify Maria C. Ruduski - Downey, O.D.'s license?

NPPES lists Pennsylvania license number OEG000210, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.

How much does Maria C. Ruduski - Downey, O.D. prescribe under Medicare Part D?

In 2024, Maria C. Ruduski - Downey, O.D. had 171 Medicare Part D claims for 66 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.