DR. GRANT MICHAEL CLARK (M.D.) – Radiation Oncology Physician, NPI 1700029626
Radiation Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
130 RADIATION ONCOLOGY in TN
Loading map...
Provider Addresses for DR. GRANT MICHAEL CLARK (M.D.)
1915, White Avenue, Fort Sanders, Knoxville, Knox County, East Tennessee, Tennessee, 37916, United States
KNOXVILLE, TN 379162300
Phone: (658) 331-1155
Type: Location
9711, Sherrill Boulevard, Cedar Bluff, Knoxville, Knox County, East Tennessee, Tennessee, 37923, United States
KNOXVILLE, TN 379323330
Phone: (658) 331-1155
Type: Mailing
P.O. BOX 24120
KNOXVILLE, TN 379332120
Phone: (865) 803-4321
Fax: (865) 988-5658
Type: Mailing
1915 WHITE AVENUE
KNOXVILLE, TN 379162399
Phone: (865) 331-1155
Fax: (865) 331-3165
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
No Open Payments data available for this provider.
This can happen when there are no reportable CMS Open Payments records.
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: 2014-06-24
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 |
|---|---|---|---|---|
| I20140624002493 | I | Radiation Oncology | 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 |
|---|---|---|---|---|
| 77014 | Ct guidance for insertion of radiation therapy fields | 1,049 | 52 | $0 |
| 77300 | Calculation of radiation therapy dose | 381 | 120 | $0 |
| 77334 | Design and construction of complex radiation treatment device | 352 | 125 | $0 |
| 77427 | Radiation treatment management, 5 treatment sessions | 285 | 78 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 252 | 198 | $0 |
Insurance plans in this area (ZIP 37916)
Loading plans...
Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Diagnostic Radiology | TN | |
| Radiation Oncology | FL | |
| Radiation Oncology | TN | |
| Radiation Oncology | TN | |
| - | TN | |
| Nurse Practitioner | TN | |
| Radiation Oncology | TN | |
| Radiation Oncology | OK |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.