Cheri Johnston, M.D.
NPI 1639186455 · Family Medicine Physician · Knoxville, TN
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Cheri Johnston, M.D. is a Family Medicine Physician provider in Knoxville, TN (NPI 1639186455).
Provider details
- NPI number
- 1639186455
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- MD017443 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,669 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Remote Monitoring of Physiologic Parameters, Initial Supply of Devices With Daily Recordings Or Programmed Alerts Transmission, Each 30 Days99454 | 367 | $42 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 283 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 228 | $118 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 208 | $84 |
| Management Using the Results of Remote Vital Sign Monitoring Per Calendar Month, First 20 Minutes99457 | 191 | $45 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent Visit |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 111 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 458 | 137 |
| Levothyroxine Sodium | 392 | 107 |
| Losartan Potassium | 212 | 64 |
| Lisinopril | 191 | 55 |
| Amlodipine Besylate | 169 | 58 |
| Omeprazole | 145 | 45 |
| Hydrochlorothiazide |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$1,117 across 50 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-08-02
- Last updated
- 2022-07-21
- Certified
- 2020-09-02
Frequently asked questions
- What is Cheri Johnston's NPI number?
- Cheri Johnston's National Provider Identifier (NPI) is 1639186455, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Cheri Johnston's specialty?
- Cheri Johnston is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Cheri Johnston located?
- Cheri Johnston's practice location on file with NPPES is 10810 Parkside Dr Ste 108, Knoxville, TN 37934-1980.
- What is Cheri Johnston's phone number?
- The practice phone number listed in the NPPES registry for Cheri Johnston is (865) 647-3650.
- Does Cheri Johnston accept Medicare?
- Cheri Johnston is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Cheri Johnston's NPI active?
- Yes — Cheri Johnston's NPI (1639186455) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.