Michael S. Ruddat, MD
Ophthalmology Physician · Hartford, CT
Michael S. Ruddat, MD is an ophthalmology physician with a practice address in Hartford, Connecticut, and NPI 1326021056, issued on Nov 28, 2005. Check the license (Connecticut 033808, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Michael S. Ruddat
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 033808 CT
Self-reported in NPPES; status is on the state search - Practice location
- 85 Seymour St, Hartford, CT 06106
- Phone
- (860) 525-3900
- Enumerated
- Nov 28, 2005
- Record last updated
- Jun 28, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (860) 241-8112
- Medicare enrollment
- Enrolled (PECOS I20101211000136); accepts Medicare assignment
- Medical or professional school
- University Of Chicago, Pritzker School Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 336 in Connecticut → Look up another NPI →
Also registered at 85 Seymour St
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Verify Michael S. Ruddat in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 033808Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
83% fewer Medicare Part D claims than the average ophthalmology physician in 2024
252 Medicare Part D claims for 83 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 63% of claims.
Most prescribed
- Prolensa65 claims
- Prednisolone Acetate55 claims
- Lotemax Sm23 claims
- Bromfenac Sodium19 claims
- Ketorolac Tromethamine17 claims
- Neomycin-Polymyxin-Dexameth12 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 practice group's MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Retina Consultants PCHartford, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael S. Ruddat among 336 ophthalmology physician records in Connecticut
Michael S. Ruddat, MD is one of 336 ophthalmology physician records with a practice address in Connecticut. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 81% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1989 · median 2000 among the 212 with a school on file
- Record last updated2021 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Connecticut
There are 336 ophthalmology physician records in Connecticut.
All 336 in Connecticut → Every provider in Hartford → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Herbert Becker, MDHartford, CT 061061801852314
- Paul Gaudio, M.D.Hartford, CT 061061942271895
- John Huang, M.D.Hartford, CT 061061801822754
- Vito Larocca, MDHartford, CT 061061679569321
- Nannette Refice, M.D.Hartford, CT 061061821055294
- Duane Austin, M.D.West Hartford, CT 061071477654838
- Alexander Gaudio, M.D.West Hartford, CT 061071467454728
- Jeremy Hwang, MD, PHDWest Hartford, CT 061071841581154
Common questions
What is Michael S. Ruddat, MD's NPI number?
Michael S. Ruddat, MD's National Provider Identifier (NPI) is 1326021056, issued on Nov 28, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Michael S. Ruddat, MD located?
The NPPES record lists a practice address at 85 Seymour St, Hartford, CT, 06106. Phone: (860) 525-3900. Providers update this record themselves, so call before visiting.
How can I verify Michael S. Ruddat, MD's license?
NPPES lists Connecticut license number 033808, as entered by the provider. Search the Connecticut Medical Examining Board at https://www.elicense.ct.gov/Lookup/LicenseLookup.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Michael S. Ruddat, MD prescribe under Medicare Part D?
In 2024, Michael S. Ruddat, MD had 252 Medicare Part D claims for 83 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Michael S. Ruddat, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100, reported for the practice group. 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.