Physician Profile
Unclaimed ProfileAbout MATHIEN
Gregory Mark Mathien, M.D. practises sports medicine in Knoxville, TN. Gregory is a 1986 graduate of State University of Ny Upstate Medical University. Gregory is also listed as specialising in orthopaedic sports medicine and orthopaedic surgery.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What is Dr. Mathien's specialty?
Dr. Mathien is a sports medicine in Knoxville, TN. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “SPORTS MEDICINE”.
NPI registry
Where can I find Dr. Mathien?
Dr. Mathien is listed at 1422 OLD WEISGARBER RD, Knoxville, TN 37909. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Mathien?
The number on file is (865) 558-4400. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Mathien's NPI number?
Dr. Mathien's National Provider Identifier is 1730156076. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
What is Dr. Mathien's medical education?
Dr. Mathien attended State University of Ny Upstate Medical University, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Mathien been practising?
Dr. Mathien has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Mathien known for?
According to Medicare billing data, Dr. Mathien performs procedures including aspiration and/or injection of fluid from large joint and replacement of knee joint, both sides of knee; reads or performs imaging such as x-ray for bone length assessment and x-ray of knee, 4 or more views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Mathien confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Mathien. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (865) 558-4400
- Email not available
Practice Locations
1422 OLD WEISGARBER RD
Knoxville, TN 37909
Procedures Most Often Billed to Medicare
1,254 services · 807 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
93 |
| Replacement of knee joint, both sides of knee | Procedure | 27447 |
39 |
| X-ray for bone length assessment | Imaging | 77073 |
144 |
| X-ray of knee, 4 or more views | Imaging | 73564 |
142 |
| X-ray of knee, 3 views | Imaging | 73562 |
67 |
| Mri scan of leg joint without contrast | Imaging | 73721 |
19 |
| Injection, triamcinolone acetonide, not otherwise specified, 10 mg | Drug given | J3301 |
436 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
142 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
123 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
49 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other sports medicines at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 28 related providers in 4 groups
Other sports medicines in Knoxville 7
Same specialty, same city.
Trained at State University of Ny Upstate Medical University 5
Other providers in the same specialty who trained at the same institution.
Class of 1986 at State University of Ny Upstate Medical University 8
Providers who graduated from the same medical school in the same year.
Also performs Aspiration and/or injection of fluid from large joint 8
Providers in TN who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.