Doctor profile · Federal record
Dr. Maggie Johnson, RD
Registered Dietitian (CMS: Registered Dietitian or Nutrition Professional) · Knoxville, TN
- NPI 1104309301
- Accepts Medicare
- 8 yrs in practice
- Female
- Solo practice
- No sanctions
Practice & contact
Operates at 3 locations .
- Primary practice
-
1450 Dowell Springs Blvd, Suite 300
Knoxville, TN 37909
(865) 637-8812
fax (865) 637-8865 - Additional location
-
414 Greenbelt Dr
Maryville, TN 378045702
fax (865) 342-4678 - Additional location
-
800 Oak Ridge Tpke Ste A402
Oak Ridge, TN 378306951
fax (865) 824-4886
Credentials & registration
- NPI registered
- September 2018 — 8 yrs on file
- Profile last updated
- June 18, 2025
- Year of graduation
- 2018 — 8 yrs since
- Specialty taxonomy
- 133V00000X — NUCC code
- State license (1)
- Tennessee #3487
- Medicaid
- TN #Q045134
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1104309301. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
376
Distinct HCPCS
2
Medicare allowed
$16,216
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
G0108 |
Diabetes outpatient self-management training services, individual, per 30 minutes | 245 | 122 | $51 | |
97802 |
Therapy procedure for nutrition management, each 15 minutes | 131 | 42 | $29 |
In context: peer comparison
Among 3 peers in Knoxville Registered Dietitian, average services per provider: 152. This provider delivers 2.5× the peer median.Frequently asked questions
What is Dr. Maggie Johnson's medical specialty?
Dr. Maggie Johnson practices Registered Dietitian in Knoxville, TN.
Where does Dr. Maggie Johnson practice?
Dr. Maggie Johnson practices at 1450 Dowell Springs Blvd, Knoxville, TN 37909. Office phone: 8656378812.
What is Dr. Maggie Johnson's NPI?
Dr. Maggie Johnson's National Provider Identifier (NPI) is 1104309301, issued by NPPES.
Does Dr. Maggie Johnson accept Medicare assignment?
Yes. Dr. Maggie Johnson accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Maggie Johnson commonly perform?
Top Medicare-reported procedures in 2023: Diabetes outpatient self-management training services, individual, per 30 minutes (HCPCS G0108); Therapy procedure for nutrition management (HCPCS 97802). Source: CMS Medicare Physician & Other Practitioners file.