William R. Maron, MD
Ophthalmology Physician · Hartford, CT
William R. Maron, MD is an ophthalmology physician with a practice address in Hartford, Connecticut, and NPI 1811921356, issued on Jul 10, 2006. Check the license (Connecticut 018676, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- William R. Maron
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 018676 CT
Self-reported in NPPES; status is on the state search - Practice location
- 21 Woodland St, Hartford, CT 06105
- Phone
- (860) 522-5215
- Enumerated
- Jul 10, 2006
- Record last updated
- Mar 14, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (860) 247-3347
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 336 in Connecticut → Look up another NPI →
Also registered at 21 Woodland St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William R. Maron in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 018676Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average ophthalmology physician in 2024
40 Medicare Part D claims for 13 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 53% of claims.
Most prescribed
- Travoprost12 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: $227.73
12 payments; by number, the most common kind was food and beverage; the largest payer was Sun Pharmaceutical Industries Inc. The 13,221 providers of this specialty with any payment received $4,535.02 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.
William R. Maron among 336 ophthalmology physician records in Connecticut
William R. Maron, 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 2006, is newer than 19% of them.
- NPI issued2006 · 19% of these records are older, 35% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2008 · 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
- William Maron, M.DHartford, CT 061051942646898
- Edmund Suski, MDHartford, CT 061051982778635
- 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
- Michael Ruddat, MDHartford, CT 061061326021056
Common questions
What is William R. Maron, MD's NPI number?
William R. Maron, MD's National Provider Identifier (NPI) is 1811921356, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William R. Maron, MD located?
The NPPES record lists a practice address at 21 Woodland St, Hartford, CT, 06105. Phone: (860) 522-5215. Providers update this record themselves, so call before visiting.
How can I verify William R. Maron, MD's license?
NPPES lists Connecticut license number 018676, 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 William R. Maron, MD prescribe under Medicare Part D?
In 2024, William R. Maron, MD had 40 Medicare Part D claims for 13 beneficiaries; the average among ophthalmology physician prescribers was 1,518. 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.