Doctor profile · Federal record
Dr. Gregory Mathien, M.D.
Sports Medicine (Orthopaedic Surgery) Physician (CMS: Sports Medicine) · Orthopaedic Surgery Physician · Knoxville, TN
- NPI 1730156076
- Accepts Medicare
- MIPS 91.5 / 100 · 2023
- 40 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
1422 Old Weisgarber RD
Knoxville, TN 379091293
(865) 558-4400
fax (865) 558-4471 - Mailing address
-
8320 E Walker Springs Ln Ste 200
Knoxville, TN 379233120
Credentials & registration
- NPI registered
- March 2006 — 20 yrs on file
- Profile last updated
- January 15, 2026
- Year of graduation
- 1986 — 40 yrs since
- Specialty taxonomy
- 207XX0005X — NUCC code
- State licenses (2)
- Tennessee #21414 · Tennessee #MD21414
- Medicaid
- TN #3059706
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1730156076. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
1,083
Distinct HCPCS
10
Medicare allowed
$97,738
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
J3301 |
Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 364 | 73 | $1 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 170 | 115 | $84 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 133 | 114 | $119 | |
73564 |
X-ray of knee, 4 or more views | 113 | 91 | $42 | |
20610 |
Aspiration and/or injection of fluid from large joint | 81 | 73 | $63 | |
73562 |
X-ray of knee, 3 views | 75 | 58 | $37 | |
77073 |
X-ray for bone length assessment | 47 | 47 | $41 | |
27447 |
Replacement of knee joint, both sides of knee | 37 | 36 | $1,176 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 37 | 37 | $152 | |
73721 |
Mri scan of leg joint without contrast | 26 | 26 | $132 |
In context: peer comparison
Among 7 peers in Knoxville Sports Medicine (Orthopaedic Surgery) Physician, average services per provider: 90. This provider delivers 12× the peer median.Open Payments
Industry payments received
All-time total
$58
Transactions
1
Manufacturers
1
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Ethicon US, LLC | 1 | $58.28 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
352
Patients
265
Total drug cost
$2,135
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Diclofenac Sodium | Generic | 62 | 51 | $717 |
| Sulfamethoxazole-Trimethoprim (Sulfamethoxazole/Trimethoprim) | Brand | 56 | 46 | $153 |
| Meloxicam | Generic | 54 | 37 | $141 |
| Prednisone | Generic | 44 | 28 | $200 |
| Promethazine Hcl | Generic | 42 | 40 | $108 |
| Amoxicillin | Generic | 31 | 18 | $42 |
| Gabapentin | Generic | 28 | 28 | $198 |
| Oxycodone-Acetaminophen (Oxycodone Hcl/Acetaminophen) | Brand | 20 | 17 | $221 |
| Ciprofloxacin Hcl | Generic | 15 | 0 | $355 |
Frequently asked questions
What is Dr. Gregory Mathien's medical specialty?
Dr. Gregory Mathien practices Sports Medicine (Orthopaedic Surgery) Physician in Knoxville, TN.
Where does Dr. Gregory Mathien practice?
Dr. Gregory Mathien practices at 1422 Old Weisgarber RD, Knoxville, TN 379091293. Office phone: 8655584400.
What is Dr. Gregory Mathien's NPI?
Dr. Gregory Mathien's National Provider Identifier (NPI) is 1730156076, issued by NPPES.
Does Dr. Gregory Mathien accept Medicare assignment?
Yes. Dr. Gregory Mathien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Gregory Mathien commonly perform?
Top Medicare-reported procedures in 2023: Injection, triamcinolone acetonide, not otherwise specified, 10 mg (HCPCS J3301); Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.