Karen Johnson
NPI 1538849906 · Family Nurse Practitioner · Ypsilanti, MI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Johnson is a Family Nurse Practitioner provider in Ypsilanti, MI (NPI 1538849906).
Provider details
- NPI number
- 1538849906
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- No
- License
- 4704359784 (MI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Metformin Hcl | 27 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 27 | 11 |
| Fluticasone Propionate | 21 | 12 |
| Gabapentin | 21 | — |
| Levothyroxine Sodium | 21 | — |
| Amlodipine Besylate | 19 | — |
| Amoxicillin/Potassium Clav |
Practice location
Mailing address
Additional practice locations (1)
- 28280 Schroeder StFarmington Hills, MI 48331-3175Phone: (248) 345-2047
Registry dates
- Enumerated
- 2023-07-20
- Last updated
- 2023-09-01
- Certified
- 2023-09-01
Frequently asked questions
- What is Karen Johnson's NPI number?
- Karen Johnson's National Provider Identifier (NPI) is 1538849906, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Johnson's specialty?
- Karen Johnson is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Karen Johnson located?
- Karen Johnson's practice location on file with NPPES is 200 Arnet St, Ypsilanti, MI 48198-5753.
- What is Karen Johnson's phone number?
- The practice phone number listed in the NPPES registry for Karen Johnson is (734) 985-7200.
- Does Karen Johnson accept Medicare?
- Karen Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Johnson's NPI active?
- Yes — Karen Johnson's NPI (1538849906) is active in the NPPES registry as of the last update on 2023-09-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.