Doctor profile · Federal record

Dr. Winnie Tseng, OD

Optometrist (CMS: Optometry) · Littleton, NH

  • NPI 1629140108
  • Accepts Medicare
  • MIPS 0.0 / 100 · 2023
  • 25 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
104 Meadow St
Littleton, NH 035614026
(603) 444-2592
fax (603) 444-0804

Credentials & registration

NPPES · NUCC
NPI registered
November 2006 — 20 yrs on file
Profile last updated
June 16, 2014
Year of graduation
2001 — 25 yrs since
Specialty taxonomy
152W00000X — NUCC code
State license (1)
New Hampshire #0720
Medicaid
NH #30352511

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1629140108. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,212
Distinct HCPCS
10
Medicare allowed
$102,535
HCPCS Description Services Patients Avg allowed
92014 Established patient complete exam of visual system 277 277 $128
99213 Established patient office or other outpatient visit, 20-29 minutes 275 198 $91
92083 Exam of visual field with extended testing 159 139 $64
99214 Established patient office or other outpatient visit, 30-39 minutes 132 91 $128
92020 Exam of the internal drainage system of eye 90 88 $28
92133 Imaging of optic nerve 88 85 $35
92250 Photography of the retina 79 71 $37
92134 Imaging of retina 78 64 $41
92004 New patient complete exam of visual system 21 21 $152
76514 Ultrasound scan of cornea to determine thickness 13 13 $11

In context: peer comparison

Among 6 peers in this city , average services per provider: 149. This provider delivers 8.1× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$352
Transactions
5
Manufacturers
4
Payer (manufacturer) Industry Txns Amount
Bausch & Lomb Americas Inc. 2 $146.18
CooperVision Inc. 1 $109.29
Glaukos Corporation 1 $74.13
ABBVIE INC. 1 $22.24

By nature of payment

Food and Beverage
$352

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
345
Patients
68
Total drug cost
$29,770
Drug Type Claims Patients Total cost
Latanoprost Generic 175 53 $4,899
Timolol Maleate Generic 41 15 $673
Dorzolamide-Timolol (Dorzolamide Hcl/Timolol Maleat) Brand 30 0 $906
Travoprost Generic 27 0 $5,378
Dorzolamide Hcl Generic 26 0 $689
Brimonidine Tartrate Generic 20 0 $2,789
Vyzulta (Latanoprostene Bunod) Brand 14 0 $8,200
Alphagan P (Brimonidine Tartrate) Brand 12 0 $6,236

Frequently asked questions

Auto-generated from federal data
What is Dr. Winnie Tseng's medical specialty?
Dr. Winnie Tseng practices Optometrist in Littleton, NH.
Where does Dr. Winnie Tseng practice?
Dr. Winnie Tseng practices at 104 Meadow St, Littleton, NH 035614026. Office phone: 6034442592.
What is Dr. Winnie Tseng's NPI?
Dr. Winnie Tseng's National Provider Identifier (NPI) is 1629140108, issued by NPPES.
Does Dr. Winnie Tseng accept Medicare assignment?
Yes. Dr. Winnie Tseng accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Winnie Tseng commonly perform?
Top Medicare-reported procedures in 2023: Established patient complete exam of visual system (HCPCS 92014); Established patient office or other outpatient visit (HCPCS 99213); Exam of visual field with extended testing (HCPCS 92083). Source: CMS Medicare Physician & Other Practitioners file.