SEIDENBERG PROTZKO EYE ASSOCIATES
SEIDENBERG PROTZKO EYE ASSOCIATES is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003276825, based in Chestertown, MD. It is classified under Eyewear Supplier.
Getting there
Here is what surrounds this office in Chestertown, based on OpenStreetMap data collected Sep 15, 2026. Parking is available about 0.36 mi away. There is EV charging 0.32 mi from the office — useful if you are driving in from out of town.
Getting here and what is nearby
Convenience Royal Farms 804 ft ~4 min
859 High Street, Chestertown 21620
Gas station Royal Farms 807 ft ~4 min
Convenience Lewes Market 820 ft ~4 min
Gas station Liberty 878 ft ~4 min
Parking 0.22 mi ~5 min
EV charging 0.32 mi ~7 min
Parking 0.35 mi ~8 min
Parking 0.36 mi ~8 min
Restaurant Domino's 0.46 mi ~10 min
518 Washington Avenue, Chestertown 21620
Mo-Th 10:30-24:00; Fr-Sa 10:30-01:00; Su 10:30-24:00
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| TA1239 | MD | Eyewear Supplier primary |
This provider holds licence TA1239 issued in MD. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Eyewear Supplier covers
An organization that provides spectacles, contact lenses, and other vision enhancement devices prescribed by an optometrist or ophthalmologist. NUCC Health Care Provider Taxonomy, code 332H00000X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003276825 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | Mar 7, 2016 |
| Last updated | Mar 7, 2016 |
| Status | Active |
| Practice address |
120 SPEER RD STE 1 Chestertown, MD 21620 (410) 939-6477 |
| Mailing address |
2023 PULASKI HWY Havre De Grace, MD 21078 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 2 | 7 | 6 | 8 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 7 | 3 | 8 | 4 |
Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.