Alexander Costin, ABO-C, NCLE-C
Alexander Costin, ABO-C, NCLE-C is a provider specialising in Optician in Wyoming, MI, registered under NPI 1740967967. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 355 54TH ST SW, Wyoming, MI 49548. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 250670 | MI | Optician primary |
| 250670 | MI | Contact Lens Technician/Technologist |
This provider holds licence 250670 issued in MI. 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 Optician covers
Opticians help fit eyeglasses and contact lenses, following prescriptions from Ophthalmologists and Optometrists. They also help customers decide which eyeglass frame or contact lenses to buy. NUCC Health Care Provider Taxonomy, code 156FX1800X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 156FX1800X | Optician Optician | 250670 | MI | primary |
| 156FC0800X | Contact Lens Technician/Technologist Contact Lens | 250670 | MI |
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-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1740967967 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 29, 2023 |
| Last updated | Feb 23, 2026 |
| Status | Active |
| Sole proprietor | No |
| Credential | ABO-C, NCLE-C |
| Practice address |
355 54TH ST SW Wyoming, MI 49548 (616) 552-6228 Fax (616) 534-2909 |
| Mailing address |
545 VAN ALLEN ST SE Wyoming, MI 49548 |
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 | 7 | 4 | 0 | 9 | 6 | 7 | 9 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 7 | 8 | 0 | 9 | 6 | 5 | 9 | 3 |
Sum = 73 · next multiple of 10 = 80 · check digit = 7 · actual last digit = 7
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.