Mary Johnson, AGACNP
NPI 1891154092 · Acute Care Nurse Practitioner · Knoxville, TN
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mary Johnson, AGACNP is a Acute Care Nurse Practitioner provider in Knoxville, TN (NPI 1891154092).
Provider details
- NPI number
- 1891154092
- Entity type
- Individual
- Primary specialty
- Acute Care Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- AGACNP
- Sex
- Female
- Sole proprietor
- No
- License
- 020752 (TN)
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 tenure28% of score
10 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,293 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 588 | $100 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 | 192 | $11 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 156 | $62 |
| Anticoagulant Management of Patient Taking Warfarin93793 | 94 | $9 |
| Blood Test, Clotting Time85610 | 90 | $4 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report Only93010 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 42 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 586 | 143 |
| Atorvastatin Calcium | 339 | 112 |
| Metoprolol Tartrate | 329 | 98 |
| Furosemide | 309 | 108 |
| Metoprolol Succinate | 305 | 110 |
| Carvedilol | 288 | 98 |
| Clopidogrel Bisulfatebrand: Clopidogrel |
Practice location
Mailing address
Registry dates
- Enumerated
- 2016-02-16
- Last updated
- 2020-09-16
- Certified
- 2020-09-16
Frequently asked questions
- What is Mary Johnson's NPI number?
- Mary Johnson's National Provider Identifier (NPI) is 1891154092, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mary Johnson's specialty?
- Mary Johnson is listed in the NPPES registry with a primary specialty of Acute Care Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Mary Johnson located?
- Mary Johnson's practice location on file with NPPES is 9330 Park West Blvd, Knoxville, TN 37923-4308.
- What is Mary Johnson's phone number?
- The practice phone number listed in the NPPES registry for Mary Johnson is (865) 373-7100.
- Does Mary Johnson accept Medicare?
- Mary Johnson is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mary Johnson's NPI active?
- Yes — Mary Johnson's NPI (1891154092) is active in the NPPES registry as of the last update on 2020-09-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.