Justine Schrader
Justine Schrader is a Primary Care Nurse Practitioner in Port Huron, MI, registered under NPI 1003285859. This provider registers 5 separate taxonomy codes, which usually means they practise across more than one recognised specialty. 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 Port Huron, based on OpenStreetMap data collected Sep 16, 2026. Parking is available about 0.37 mi away. The nearest transit stop is 0.48 mi away, served by Port Haven. A pharmacy sits 544 ft from the entrance (CVS Pharmacy), which helps if you leave with a prescription.
Getting here and what is nearby
Pharmacy CVS Pharmacy 544 ft ~3 min
Restaurant Great Wall 647 ft ~3 min
3554 Pine Grove Avenue, Port Huron
Convenience Marathon 851 ft ~4 min
Gas station Marathon 884 ft ~4 min
Restaurant Arby's 883 ft ~4 min
3502 Pine Grove Avenue, Port Huron 48060
10:00-24:00
Restaurant Burger King 923 ft ~4 min
3584 Pine Grove Avenue, Port Huron 48060
07:00-21:00
Parking 0.26 mi ~6 min
Transit 0.29 mi ~6 min
Parking 0.34 mi ~7 min
Parking 0.37 mi ~8 min
Convenience Speedy Q 0.40 mi ~8 min
3786 Pine Grove Avenue, Fort Gratiot 48059
Gas station Speedy Q 0.40 mi ~9 min
3786 Pine Grove Avenue, Fort Gratiot 48059
Gas station Shell 0.47 mi ~10 min
3805 Pine Grove Avenue, Port Huron 48061
Transit Port Haven 0.48 mi ~10 min
Convenience Shell 0.49 mi ~10 min
3805 Pine Grove Avenue, Port Huron 48061
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 |
|---|---|---|
| 4704278975 | MI | Primary Care Nurse Practitioner primary |
| 4704278975 | MI | Nurse Practitioner |
| 4704278975 | MI | Adult Health Clinical Nurse Specialist |
| 4704278975 | MI | Gerontology Clinical Nurse Specialist |
| 4704278975 | MI | Perioperative Clinical Nurse Specialist |
This provider holds licence 4704278975 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 Primary Care covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363LP2300X
All registered taxonomy codes
This provider registers 5 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 363LP2300X | Primary Care Nurse Practitioner Primary Care | 4704278975 | MI | primary |
| 363L00000X | Nurse Practitioner | 4704278975 | MI | |
| 364SA2200X | Adult Health Clinical Nurse Specialist Adult Health | 4704278975 | MI | |
| 364SG0600X | Gerontology Clinical Nurse Specialist Gerontology | 4704278975 | MI | |
| 364SP2800X | Perioperative Clinical Nurse Specialist Perioperative | 4704278975 | 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 | 1003285859 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 23, 2015 |
| Last updated | Mar 17, 2018 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Practice address |
1979 HOLLAND AVE Port Huron, MI 48060 (810) 982-1200 |
| Mailing address |
7244 2ND ST Lakeport, MI 48059 |
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 | 8 | 5 | 8 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 8 | 1 | 8 | 1 |
Sum = 51 · next multiple of 10 = 60 · check digit = 9 · actual last digit = 9
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.