DR. GREGORY MARK MATHIEN (M.D.) – Sports Medicine (Orthopaedic Surgery) Physician, NPI 1730156076
Sports Medicine (Orthopaedic Surgery) Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
161 SPORTS MEDICINE in TN
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Provider Addresses for DR. GREGORY MARK MATHIEN (M.D.)
8320 E WALKER SPRINGS LN STE 200
KNOXVILLE, TN 379233120
Phone: (865) 769-4500
Fax: (865) 769-4501
Type: Mailing
Old Weisgarber Road, Bearden, Knoxville, Knox County, Tennessee, 37919, United States
KNOXVILLE, TN 379091293
Phone: (865) 558-4400
Fax: (865) 558-4471
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $58.
Total Amount is formed as General ($58) + Research ($0) + Ownership ($0) = $58.
Last reported payment date: 2024-02-17 • Largest payer in this snapshot: Ethicon US, LLC ($58).
Total Amount
$58
General + Research + Ownership
Payments
1
Total payment records
General Amount
$58
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-02-17
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Ethicon US, LLC | $58 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2010-04-27
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20100427000037 | I | Sports Medicine | TN | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| J3301 | Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 364 | 73 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 170 | 115 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 133 | 114 | $0 |
| 73564 | X-ray of knee, 4 or more views | 113 | 91 | $0 |
| 20610 | Aspiration and/or injection of fluid from large joint | 81 | 73 | $0 |
Insurance plans in this area (ZIP 37923)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| SPORTS MEDICINE | TN | 20610 | Aspiration and/or injection of large joint or joint capsule | 120 | 91 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | TN | |
| - | TN | |
| Nurse Practitioner | TN | |
| Physician Assistant | TN | |
| Occupational Therapist In Private Practice | TN | |
| P O D I A T R Y | TN | |
| - | TN | |
| Orthopedic Surgery | TN | |
| - | TN | |
| - | TN |
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