NPPES file of Aug 9, 2026

Margaret M. Ritterbusch, O.D.

Optometrist · Princeton, NJ

Margaret M. Ritterbusch, O.D. is an optometrist with a practice address in Princeton, New Jersey, and NPI 1215934302, issued on Jul 5, 2005. Check the license (New Jersey 27TO00029000, as entered in NPPES) with the New Jersey 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
1215934302
Name
Margaret M. Ritterbusch
Credential
O.D.
Primary taxonomy
Optometrist 152W00000X
License numbers
27TO00029000 NJ
270A00463000 NJ
Self-reported in NPPES; status is on the state search
Practice location
100 Canal Pointe Blvd, Princeton, NJ 08540
Phone
(609) 419-1920
Enumerated
Jul 5, 2005
Record last updated
Sep 6, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(609) 419-1905
Medicare enrollment
Enrolled (PECOS I20050329000924); accepts Medicare assignment
Medical or professional school
New England College Of Optometry, 1985
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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Also registered at 100 Canal Pointe Blvd

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

  1. John Rotondi, D.M.D.General Practice Dentistry1821213182

Verify Margaret M. Ritterbusch in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New Jersey board licenses this profession
    Search for license 27TO00029000
    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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3% more Medicare Part D claims than the average optometrist in 2024

285 Medicare Part D claims for 84 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 54% of claims.

  1. Margaret Ritterbusch285
  2. Specialty average277

Most prescribed

  1. Latanoprost72 claims
  2. Tobramycin-Dexamethasone25 claims
  3. Cyclosporine22 claims
  4. Lumigan21 claims
  5. Restasis21 claims
  6. Prednisolone Acetate18 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 MIPS final score for 2023 (Medicare payment program): 91.7 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score90.2
  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; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $160.17

5 payments; by number, the most common kind was food and beverage; the largest payer was Amgen 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. Margaret Ritterbusch$160.17
  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. Associated Retinal Consultants LLCMonroe Township, NJ

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

22 optometrist records list a practice address in Princeton

They are 22 of the 1,622 NPPES records with a practice address in Princeton, and 1,542 optometrist records in New Jersey.

Other optometrist records in New Jersey

  1. Silvana Abadeer, O.D.East Brunswick, NJ1447550645
  2. Charles Abady, O.D.Oakhurst, NJ1205817517
  3. Komal Abbas, ODAnnandale, NJ1811419914
  4. Laila Abbas, OD (OPTOMETRIST)Clifton, NJ1942722277
  5. Diamond Abbate, ODBurlington, NJ1932940210
  6. Gregg Abbate, O.D.Cherry Hill, NJ1568511921
  7. Aayh Abdelgawad, ODEast Windsor, NJ1760214183
  8. Rita Abdul- Massih, O.D.Little Silver, NJ1538178371
  9. Diellnor Abduramani, ODRiverdale, NJ1609768316
  10. Travis Abel, O.D.Woodcliff Lake, NJ1154760429

Common questions

What is Margaret M. Ritterbusch, O.D.'s NPI number?

Margaret M. Ritterbusch, O.D.'s National Provider Identifier (NPI) is 1215934302, issued on Jul 5, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Margaret M. Ritterbusch, O.D. located?

The NPPES record lists a practice address at 100 Canal Pointe Blvd, Princeton, NJ, 08540. Phone: (609) 419-1920. Providers update this record themselves, so call before visiting.

How can I verify Margaret M. Ritterbusch, O.D.'s license?

NPPES lists New Jersey license number 27TO00029000, as entered by the provider. Search the New Jersey board that licenses this profession; the NPPES record confirms identity only.

How much does Margaret M. Ritterbusch, O.D. prescribe under Medicare Part D?

In 2024, Margaret M. Ritterbusch, O.D. had 285 Medicare Part D claims for 84 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.

What is Margaret M. Ritterbusch, O.D.'s MIPS final score?

The 2023 MIPS final score is 91.7 of 100. 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.