Erica Ma
Erica Ma is a Family Medicine Physician in Grand Blanc, MI, registered under NPI 1003700238. 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 Grand Blanc, based on OpenStreetMap data collected Sep 27, 2026. Parking is available about 485 ft away. The nearest transit stop is 0.20 mi away, served by Genesys Parkway & Health Park Boulevard.
Getting here and what is nearby
Transit Genesys Health Park 380 ft ~2 min
Parking 485 ft ~2 min
Transit Genesys Parkway & Health Park Boulevard 0.20 mi ~5 min
Restaurant Arby's 0.49 mi ~10 min
3465 Pollock Road, Grand Blanc 48439
Mo-Th 09:00-23:00; Fr-Sa 09:00-24:00; Su 09:00-23:00
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 |
|---|---|---|
| 5151017601 | MI | Family Medicine Physician primary |
This provider holds licence 5151017601 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 - Family Practice
- PAC ID
- 8527567577
- Enrollment ID
- I20250816000063
Medicare enrolment is recorded as approved under the provider type Order And Referring Only - Family Practice. 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 Family Medicine covers
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity. NUCC Health Care Provider Taxonomy, code 207Q00000X
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 | 1003700238 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 3, 2025 |
| Last updated | Jun 3, 2025 |
| Status | Active |
| Sole proprietor | Yes |
| Practice address |
1 GENESYS PKWY Grand Blanc, MI 48439 (810) 606-5000 |
| Mailing address |
4153 MONARCH AVE Canton, MI 48188 |
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 | 7 | 0 | 0 | 2 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 5 | 0 | 0 | 2 | 6 |
Sum = 42 · next multiple of 10 = 50 · check digit = 8 · actual last digit = 8
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.