Jo Johnson, D.O.
Jo Johnson, D.O. is a provider specialising in Personal Emergency Response Attendant in Fenton, MI, registered under NPI 1346262821. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 3220 W SILVER LAKE RD, Fenton, MI 48430. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 5101010026 | MI | Personal Emergency Response Attendant primary |
| 5101010026 | MI | Family Medicine Physician |
This provider holds licence 5101010026 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 Personal Emergency Response Attendant covers
Individuals that are specially trained to assist patients living at home with urgent/emergent situations. These individuals must be able to perform CPR and basic first aid and have sufficient counseling skills to allay fears and assist in working through processes necessary to resolve the crisis. Functions may include transportation to various facilities and businesses, contacting agencies to initiate remediation service or providing reassurance. NUCC Health Care Provider Taxonomy, code 146D00000X
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 | |
|---|---|---|---|---|
| 146D00000X | Personal Emergency Response Attendant | 5101010026 | MI | primary |
| 207Q00000X | Family Medicine Physician | 5101010026 | 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 | 1346262821 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 24, 2006 |
| Last updated | Sep 11, 2025 |
| Status | Active |
| Sole proprietor | No |
| Credential | D.O. |
| Practice address |
3220 W SILVER LAKE RD Fenton, MI 48430 (810) 750-1763 Fax (810) 750-1786 |
| Other identifiers |
4301746
(MI) |
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 | 3 | 4 | 6 | 2 | 6 | 2 | 8 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 3 | 8 | 6 | 4 | 6 | 4 | 8 | 4 |
Sum = 69 · next multiple of 10 = 70 · check digit = 1 · actual last digit = 1
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.