Doctor profile · Federal record
Dr. Allison Johnsen, M.D.
Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Diagnostic Radiology Physician · Knoxville, TN
- NPI 1730475252
- Accepts Medicare
- MIPS 99.1 / 100 · 2023
- 19 yrs in practice
- Licensed in 2 states
- Female
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
4820 Old Kingston Pike
Knoxville, TN 379196424
(865) 558-9862
fax (865) 584-3478
Credentials & registration
- NPI registered
- June 2011 — 15 yrs on file
- Profile last updated
- March 30, 2026
- Year of graduation
- 2007 — 19 yrs since
- Specialty taxonomy
- 2085R0202X — NUCC code
- State licenses (2)
- Tennessee #MD52135 · South Carolina #LL33755
- Medicaid
- TN #Q022970
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1730475252. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
6,437
Distinct HCPCS
10
Medicare allowed
$119,143
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
Q9967 |
Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 4,049 | 46 | $0 | |
A9576 |
Injection, gadoteridol, (prohance multipack), per ml | 305 | 23 | $1 | |
71045 |
X-ray of chest, 1 view | 228 | 207 | $8 | |
71046 |
X-ray of chest, 2 views | 175 | 168 | $12 | |
77067 |
Screening mammography | 142 | 142 | $118 | |
77063 |
Screening 3d breast mammography | 102 | 102 | $49 | |
70450 |
Ct scan head or brain without contrast | 89 | 88 | $38 | |
72148 |
Mri scan of lower spinal canal without contrast | 85 | 84 | $88 | |
77080 |
Dxa bone density measurement of hip, pelvis, spine | 69 | 69 | $33 | |
74176 |
Ct scan of abdomen and pelvis without contrast | 61 | 60 | $80 |
In context: peer comparison
Among 57 peers in Knoxville Diagnostic Radiology Physician, average services per provider: 108. This provider delivers 60× the peer median.Hospital affiliations
Frequently asked questions
What is Dr. Allison Johnsen's medical specialty?
Dr. Allison Johnsen practices Diagnostic Radiology Physician in Knoxville, TN.
Where does Dr. Allison Johnsen practice?
Dr. Allison Johnsen practices at 4820 Old Kingston Pike, Knoxville, TN 379196424. Office phone: 8655589862.
What is Dr. Allison Johnsen's NPI?
Dr. Allison Johnsen's National Provider Identifier (NPI) is 1730475252, issued by NPPES.
Does Dr. Allison Johnsen accept Medicare assignment?
Yes. Dr. Allison Johnsen accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Allison Johnsen commonly perform?
Top Medicare-reported procedures in 2023: Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); Injection, gadoteridol, (prohance multipack), per ml (HCPCS A9576); X-ray of chest, 1 view (HCPCS 71045). Source: CMS Medicare Physician & Other Practitioners file.