John Siano
Ophthalmology Physician · Hamden, CT
John Siano is an ophthalmology physician with a practice address in Hamden, Connecticut, and NPI 1326509506, issued on Mar 29, 2019. Check the license (Connecticut 73903, as entered in NPPES) on the Connecticut Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- John Siano
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 73903 CT
Self-reported in NPPES; status is on the state search - Practice location
- 2200 Whitney Ave Ste 300, Hamden, CT 06518
- Phone
- (203) 288-2020
- Enumerated
- Mar 29, 2019
- Record last updated
- Oct 31, 2023
- Fax
- (203) 288-2470
- Medicare enrollment
- Enrolled (PECOS I20230419002568); accepts Medicare assignment
- Medical or professional school
- New York College Of Osteo Medicine Of New York Institute Of Technology, 2019
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 336 in Connecticut → Look up another NPI →
Verify John Siano in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersConnecticut Medical Examining Board
Search for license 73903Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average ophthalmology physician in 2024
96 Medicare Part D claims for 47 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Prednisolone Acetate15 claims
- Latanoprost14 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: $1,015.75
29 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, 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.
Bills Medicare through one group practice
- Refocus Eye Health OF Central Connecticut PCHamden, CT
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Siano among 336 ophthalmology physician records in Connecticut
John Siano 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 2019, is newer than 95% of them.
- NPI issued2019 · 95% of these records are older, 4% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2019 · median 2000 among the 212 with a school on file
- Record last updated2023 · 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 Hamden → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Matthew Dombrow, MDHamden, CT 065181376798967
- Andrew Fezza, MDHamden, CT 065181265404164
- Jeffrey Gold, M.D.Hamden, CT 065181013956010
- Gregory Haffner, M.D.Hamden, CT 065181407886450
- Alice Kim, MDHamden, CT 065181154523553
- James Martone, MDHamden, CT 065181649242603
- Paul Masi, MDHamden, CT 065181669444105
- James Murphy, M.D.Hamden, CT 065181558653014
Common questions
What is John Siano's NPI number?
John Siano's National Provider Identifier (NPI) is 1326509506, issued on Mar 29, 2019. An NPI identifies a provider in billing; it is not a license.
Where is John Siano located?
The NPPES record lists a practice address at 2200 Whitney Ave Ste 300, Hamden, CT, 06518. Phone: (203) 288-2020. Providers update this record themselves, so call before visiting.
How can I verify John Siano's license?
NPPES lists Connecticut license number 73903, 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 John Siano prescribe under Medicare Part D?
In 2024, John Siano had 96 Medicare Part D claims for 47 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.