Doctor profile · Federal record
Dr. John Stallworth, M.D.
Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Specialist · Knoxville, TN
- NPI 1669531836
- Accepts Medicare
- MIPS 99.1 / 100 · 2023
- 32 yrs in practice
- Male
- 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
- December 2006 — 20 yrs on file
- Profile last updated
- March 30, 2026
- Year of graduation
- 1994 — 32 yrs since
- Specialty taxonomy
- 2085R0202X — NUCC code
- State license (1)
- Tennessee #27487
- Medicaid
- TN #1517253
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1669531836. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
13,115
Distinct HCPCS
10
Medicare allowed
$251,625
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
Q9967 |
Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 9,040 | 100 | $0 | |
71045 |
X-ray of chest, 1 view | 313 | 296 | $8 | |
A9576 |
Injection, gadoteridol, (prohance multipack), per ml | 270 | 22 | $1 | |
77067 |
Screening mammography | 267 | 267 | $118 | |
70450 |
Ct scan head or brain without contrast | 262 | 257 | $38 | |
77067 |
Screening mammography | 205 | 205 | $35 | |
77063 |
Screening 3d breast mammography | 201 | 201 | $49 | |
77063 |
Screening 3d breast mammography | 183 | 183 | $28 | |
74176 |
Ct scan of abdomen and pelvis without contrast | 177 | 175 | $80 | |
71046 |
X-ray of chest, 2 views | 121 | 118 | $10 |
In context: peer comparison
Among 57 peers in Knoxville Diagnostic Radiology Physician, average services per provider: 108. This provider delivers 121× the peer median.Open Payments
Industry payments received
All-time total
$13
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Sirtex Medical INC | 1 | $12.58 |
By nature of payment
Hospital affiliations
Frequently asked questions
What is Dr. John Stallworth's medical specialty?
Dr. John Stallworth practices Diagnostic Radiology Physician in Knoxville, TN.
Where does Dr. John Stallworth practice?
Dr. John Stallworth practices at 4820 Old Kingston Pike, Knoxville, TN 379196424. Office phone: 8655589862.
What is Dr. John Stallworth's NPI?
Dr. John Stallworth's National Provider Identifier (NPI) is 1669531836, issued by NPPES.
Does Dr. John Stallworth accept Medicare assignment?
Yes. Dr. John Stallworth accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Stallworth commonly perform?
Top Medicare-reported procedures in 2023: Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); X-ray of chest, 1 view (HCPCS 71045); Injection, gadoteridol, (prohance multipack), per ml (HCPCS A9576). Source: CMS Medicare Physician & Other Practitioners file.