Katie Londos
Katie Londos is a Pediatric Nurse Practitioner in Saginaw, MI, registered under NPI 1003448580.
Getting there
Here is what surrounds this office in Saginaw, based on OpenStreetMap data collected Sep 12, 2026. Parking is available about 494 ft away. A pharmacy sits 0.46 mi from the entrance (Walgreens), which helps if you leave with a prescription.
Getting here and what is nearby
Parking 179 ft ~1 min
Parking 200 ft ~1 min
Parking 494 ft ~2 min
Restaurant McDonald's 0.22 mi ~5 min
1454 North Michigan Avenue, Saginaw 48602
06:00-22:00
Restaurant Taco Bell 0.22 mi ~5 min
1472 North Michigan Avenue, Saginaw 48602
Mo-Th 07:00-03:00; Fr-Sa 07:00-04:00; Su 07:00-03:00
Restaurant Burger King 0.23 mi ~5 min
1420 North Michigan Avenue, Saginaw 48602
Mo-Sa 06:00-22:00; Su 07:00-22:00
Hotel McNally House 0.26 mi ~6 min
Convenience Fast Pax Food Stores 0.39 mi ~8 min
Gas station Marathon 0.39 mi ~8 min
1824 North Michigan Avenue, Saginaw 48602
Pharmacy Walgreens 0.46 mi ~10 min
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 |
|---|---|---|
| 4704308953 | MI | Pediatric Nurse Practitioner primary |
This provider holds licence 4704308953 issued in MI. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Order And Referring Only - Nurse Practitioner
- PAC ID
- 2466880307
- Enrollment ID
- I20260331004128
Medicare enrolment is recorded as approved under the provider type Order And Referring Only - Nurse Practitioner. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Pediatrics covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363LP0200X
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 | 1003448580 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 12, 2020 |
| Last updated | Apr 1, 2021 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Practice address |
1000 HOUGHTON AVE Saginaw, MI 48602 (989) 746-7500 |
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 | 4 | 4 | 8 | 5 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 4 | 7 | 5 | 7 |
Sum = 60 · next multiple of 10 = 60 · check digit = 0 · actual last digit = 0
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.