Margaret Gressle, ACNP-BC
Margaret Gressle, ACNP-BC is an Acute Care Nurse Practitioner in Port Huron, MI, registered under NPI 1003119132. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in Port Huron, based on OpenStreetMap data collected Sep 6, 2026. Parking is available about 942 ft away.
Getting here and what is nearby
Parking 788 ft ~3 min
Parking 863 ft ~4 min
Parking 942 ft ~4 min
Restaurant Chicken In The Rough 0.35 mi ~7 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 |
|---|---|---|
| 4704235966 | MI | Acute Care Nurse Practitioner primary |
| 4704235966 | MI | Registered Nurse |
This provider holds licence 4704235966 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
- Practitioner - Nurse Practitioner
- PAC ID
- 2961648050
- Enrollment ID
- I20221115002306
Medicare enrolment is recorded as approved under the provider type Practitioner - 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 Acute Care covers
Definition to come... NUCC Health Care Provider Taxonomy, code 363LA2100X
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 | |
|---|---|---|---|---|
| 363LA2100X | Acute Care Nurse Practitioner Acute Care | 4704235966 | MI | primary |
| 163W00000X | Registered Nurse | 4704235966 | 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 | 1003119132 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 12, 2010 |
| Last updated | Mar 17, 2018 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | ACNP-BC |
| Practice address |
1221 PINE GROVE AVE Port Huron, MI 48060 (810) 987-5000 |
| Mailing address |
3050 COMMERCE DR Fort Gratiot, 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 | 1 | 1 | 9 | 1 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 1 | 9 | 1 | 6 |
Sum = 48 · next multiple of 10 = 50 · check digit = 2 · actual last digit = 2
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.