Marsha Leek, LPN
Marsha Leek, LPN is a Licensed Practical Nurse in Lansing, MI, registered under NPI 1003550146. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Lansing, based on OpenStreetMap data collected Sep 8, 2026. Parking is available about 462 ft away. The nearest transit stop is 847 ft away. A pharmacy sits 0.41 mi from the entrance (Walgreens), which helps if you leave with a prescription.
Getting here and what is nearby
Parking 290 ft ~2 min
Parking 299 ft ~2 min
Transit 160 422 ft ~2 min
Parking 462 ft ~2 min
Transit 750 ft ~3 min
Transit 847 ft ~4 min
Convenience Admiral 876 ft ~4 min
5200 South Pennsylvania Avenue, Lansing 48911
Gas station Marathon 918 ft ~4 min
5200 South Pennsylvania Avenue, Lansing 48911
Grocery International Market One 0.25 mi ~6 min
Grocery Asean Food Mart 0.29 mi ~6 min
Restaurant Subway 0.32 mi ~7 min
5025 South Cedar Street, Lansing 48910
09:00-22:00
Pharmacy Walgreens 0.41 mi ~9 min
410 East Jolly Road, Lansing 48910
Grocery Global Food Market 0.41 mi ~9 min
Restaurant McDonald's 0.45 mi ~10 min
4700 South Cedar Street, Lansing 48910-5470
05:00-23:00
Gas station Citgo 0.48 mi ~10 min
4600 South Cedar Street, Lansing 48910
Convenience Lansing Gas Station 0.49 mi ~10 min
4600 South Cedar Street, Lansing 48910
Restaurant Dan's Coney Island 0.50 mi ~11 min
5600 South Pennsylvania Avenue
Mo-Fr 07:00-20:00; Sa, Su 07:00-15:00
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 |
|---|---|---|
| 4703120370 | MI | Licensed Practical Nurse primary |
This provider holds licence 4703120370 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 Licensed Practical Nurse covers
An individual with post-high school vocational training and practical experience in the provision of nursing care at a level less than that required for certification as a Registered Nurse. Requirements for education, experience, licensure, and job responsibilities vary among the states. NUCC Health Care Provider Taxonomy, code 164W00000X
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 | 1003550146 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 25, 2022 |
| Last updated | Apr 25, 2022 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | LPN |
| Practice address |
812 E JOLLY RD Lansing, MI 48910 (517) 346-8200 |
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 | 5 | 5 | 0 | 1 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 5 | 0 | 1 | 8 |
Sum = 44 · next multiple of 10 = 50 · check digit = 6 · actual last digit = 6
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.