Doctor profile · Federal record
Dr. Gwenda Gnadt, O.D., M.P.H.
Optometrist (CMS: Optometry) · Nesconset, NY
- NPI 1689676728
- Accepts Medicare
- 35 yrs in practice
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
271 Smithtown Blvd
Nesconset, NY 117672041
(631) 588-5100
fax (631) 588-5185
Credentials & registration
- NPI registered
- June 2005 — 21 yrs on file
- Profile last updated
- December 5, 2018
- Year of graduation
- 1991 — 35 yrs since
- Specialty taxonomy
- 152W00000X — NUCC code
- State license (1)
- New York #V5220
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1689676728. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
724
Distinct HCPCS
9
Medicare allowed
$55,359
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
92012 |
Established patient problem focused exam of visual system | 158 | 108 | $101 | |
92014 |
Established patient complete exam of visual system | 136 | 127 | $140 | |
92083 |
Exam of visual field with extended testing | 134 | 125 | $70 | |
92250 |
Photography of the retina | 117 | 112 | $38 | |
92134 |
Imaging of retina | 66 | 57 | $44 | |
92133 |
Imaging of optic nerve | 43 | 42 | $40 | |
92020 |
Exam of the internal drainage system of eye | 30 | 29 | $30 | |
92201 |
Extended exam of the back part of the eye with retinal drawing | 25 | 23 | $27 | |
92285 |
Photography of content of eyes | 15 | 15 | $25 |
In context: peer comparison
Among 1 peers in Nesconset Optometrist, average services per provider: 80. This provider delivers 9.1× the peer median.Open Payments
Industry payments received
All-time total
$697
Transactions
8
Manufacturers
7
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Bausch & Lomb Americas INC. | 2 | $248.82 | |
| Johnson & Johnson Vision Care, INC. | 1 | $131.53 | |
| Ocular Therapeutix, INC. | 1 | $125.00 | |
| Amgen INC. | 1 | $117.56 | |
| Oyster Point Pharma, INC. | 1 | $30.97 | |
| Astellas Pharma US INC | 1 | $25.21 | |
| Harrow Eye, LLC | 1 | $17.77 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
73
Patients
12
Total drug cost
$16,739
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Latanoprost | Generic | 33 | 12 | $474 |
| Restasis (Cyclosporine) | Brand | 14 | 0 | $13,856 |
| Dorzolamide Hcl | Generic | 13 | 0 | $557 |
| Timolol Maleate | Generic | 13 | 0 | $1,853 |
Frequently asked questions
What is Dr. Gwenda Gnadt's medical specialty?
Dr. Gwenda Gnadt practices Optometrist in Nesconset, NY.
Where does Dr. Gwenda Gnadt practice?
Dr. Gwenda Gnadt practices at 271 Smithtown Blvd, Nesconset, NY 117672041. Office phone: 6315885100.
What is Dr. Gwenda Gnadt's NPI?
Dr. Gwenda Gnadt's National Provider Identifier (NPI) is 1689676728, issued by NPPES.
Does Dr. Gwenda Gnadt accept Medicare assignment?
Yes. Dr. Gwenda Gnadt accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gwenda Gnadt commonly perform?
Top Medicare-reported procedures in 2023: Established patient problem focused exam of visual system (HCPCS 92012); Established patient complete exam of visual system (HCPCS 92014); Exam of visual field with extended testing (HCPCS 92083). Source: CMS Medicare Physician & Other Practitioners file.