Winnie Tseng, OD
Optometrist · Littleton, NH
Winnie Tseng, OD is an optometrist with a practice address in Littleton, New Hampshire, and NPI 1629140108, issued on Nov 14, 2006. Check the license (New Hampshire 0720, as entered in NPPES) with the New Hampshire board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Winnie Tseng
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License number
- 0720 NH
Self-reported in NPPES; status is on the state search - Practice location
- 104 Meadow St, Littleton, NH 03561
- Phone
- (603) 444-2592
- Enumerated
- Nov 14, 2006
- Record last updated
- Jun 16, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (603) 444-0804
- Medicaid ID
- 30352511 NH
- Medicare enrollment
- Enrolled (PECOS I20100326000211); accepts Medicare assignment
- Medical or professional school
- Pennsylvania College Of Optometry, 2001
- Entity
- Type 1 · individual
8 nearest optometrist records → All 293 in New Hampshire → Look up another NPI →
Also registered at 104 Meadow St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Erica Griffin, ODOptometrist1275948135
- William Holmes, ODOptometrist1669544144
- Laura Karle, ODOptometrist1659997070
- Kyle Keyser, ODOptometrist1538714035
- Samuel Stack, ODOptometrist1114542149
- Kevin Stratton, ODOptometrist1285706762
Verify Winnie Tseng in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich New Hampshire board licenses this profession
Search for license 0720Check 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% more Medicare Part D claims than the average optometrist in 2024
547 Medicare Part D claims for 126 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of claims.
Most prescribed
- Latanoprost197 claims
- Timolol Maleate49 claims
- Dorzolamide-Timolol36 claims
- Dorzolamide Hcl33 claims
- Brimonidine Tartrate30 claims
- Erythromycin21 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): 0 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: $351.84
5 payments; by number, the most common kind was food and beverage; the largest payer was Bausch & Lomb Americas 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.
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
- Envision Eye Care, PLLCLittleton, NH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Winnie Tseng among 293 optometrist records in New Hampshire
Winnie Tseng, OD is one of 293 optometrist records with a practice address in New Hampshire. 74% 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 9% of them.
- NPI issued2006 · 9% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2001 · median 2007 among the 202 with a school on file
- Record last updated2014 · 67% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a New Hampshire practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
10 optometrist records list a practice address in Littleton
They are 10 of the 304 NPPES records with a practice address in Littleton, and 293 optometrist records in New Hampshire.
All 293 in New Hampshire → Every provider in Littleton → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Erica Griffin, ODLittleton, NH 035611275948135
- William Holmes, ODLittleton, NH 035611669544144
- Laura Karle, ODLittleton, NH 035611659997070
- Kyle Keyser, ODLittleton, NH 035611538714035
- Samuel Stack, ODLittleton, NH 035611114542149
- Kevin Stratton, ODLittleton, NH 035611285706762
- Joel Tuite, O.D.Littleton, NH 035611912107285
- Ryan Watari, ODLittleton, NH 035611437761731
Common questions
What is Winnie Tseng, OD's NPI number?
Winnie Tseng, OD's National Provider Identifier (NPI) is 1629140108, issued on Nov 14, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Winnie Tseng, OD located?
The NPPES record lists a practice address at 104 Meadow St, Littleton, NH, 03561. Phone: (603) 444-2592. Providers update this record themselves, so call before visiting.
How can I verify Winnie Tseng, OD's license?
NPPES lists New Hampshire license number 0720, as entered by the provider. Search the New Hampshire board that licenses this profession; the NPPES record confirms identity only.
How much does Winnie Tseng, OD prescribe under Medicare Part D?
In 2024, Winnie Tseng, OD had 547 Medicare Part D claims for 126 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
What is Winnie Tseng, OD's MIPS final score?
The 2023 MIPS final score is 0 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.