Nga Yan Siu, DO
Ophthalmology Physician · Southampton, NY
Nga Yan Siu, DO is an ophthalmology physician with a practice address in Southampton, New York, and NPI 1902284169, issued on May 8, 2015. Check the license (New York 288888, as entered in NPPES) on the NYS Education Department, Office of the Professions; the Medicare figures below come from public CMS files.
- Name
- Nga Yan Siu
- Credential
- DO
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License numbers
- 288888 NY
25MB11046700 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 67 Hampton RD, Southampton, NY 11968
- Phone
- (631) 444-4796
- Enumerated
- May 8, 2015
- Record last updated
- Dec 8, 2022
- Medicare enrollment
- Enrolled (PECOS I20230217000870); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 1,822 in New York → Look up another NPI →
Also registered at 67 Hampton RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Richard Nesi, DDSDentist1407950124
Verify Nga Yan Siu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
Search for license 288888Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
43% more Medicare Part D claims than the average ophthalmology physician in 2024
2,168 Medicare Part D claims for 481 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.
Most prescribed
- Latanoprost453 claims
- Dorzolamide-Timolol316 claims
- Brimonidine Tartrate202 claims
- Timolol Maleate149 claims
- Restasis111 claims
- Rocklatan105 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): 98.5 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.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $439.10
13 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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
- Stony Brook Ophthalmology, University Faculty Practice CorporationStony Brook, NY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Nga Yan Siu among 1,822 ophthalmology physician records in New York
Nga Yan Siu, DO is one of 1,822 ophthalmology physician records with a practice address in New York. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 90% of them.
- NPI issued2015 · 90% of these records are older, 9% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2015 · median 1995 among the 1,215 with a school on file
- Record last updated2022 · 71% 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 New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in New York
There are 1,822 ophthalmology physician records in New York.
All 1,822 in New York → Every provider in Southampton → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Paul Choinski, MDSouthampton, NY 119681174599062
- Frank Dileo, MDSouthampton, NY 119681285604652
- Peter MichalosSouthampton, NY 119681528094414
- Grace Omalley Dickinson, MDSouthampton, NY 119681689640575
- Keith Scheinblum, M.D.Shirley, NY 119671528134806
- Pamela WeberShirley, NY 119671235111089
- Lawrence Buono, M.D.Southold, NY 119711871546192
- Paul Austin, MDAmsterdam, NY 120101316007891
Common questions
What is Nga Yan Siu, DO's NPI number?
Nga Yan Siu, DO's National Provider Identifier (NPI) is 1902284169, issued on May 8, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Nga Yan Siu, DO located?
The NPPES record lists a practice address at 67 Hampton RD, Southampton, NY, 11968. Phone: (631) 444-4796. Providers update this record themselves, so call before visiting.
How can I verify Nga Yan Siu, DO's license?
NPPES lists New York license number 288888, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Nga Yan Siu, DO prescribe under Medicare Part D?
In 2024, Nga Yan Siu, DO had 2,168 Medicare Part D claims for 481 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Nga Yan Siu, DO's MIPS final score?
The 2023 MIPS final score is 98.5 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.