DR. JOHN THORNTON FOUST (MD) – Hematology & Oncology Physician, NPI 1205834835
Hematology & Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
337 HEMATOLOGY/ONCOLOGY in TN
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Provider Addresses for DR. JOHN THORNTON FOUST (MD)
East Hill Avenue, Knoxville, Knox County, Tennessee, 37929, United States
SUITE 230
KNOXVILLE, TN 379152566
Phone: (865) 862-0998
Fax: (865) 544-1861
Type: Mailing
Oak Ridge Turnpike, Emory Hills, Oak Ridge, Anderson County, Tennessee, 37830, United States
BUILDING A, STE 600
OAK RIDGE, TN 378306957
Phone: (865) 444-3050
Fax: (865) 544-1861
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 398 Open Payments records for all available years, with a total value of $7,722.
Total Amount is formed as General ($7,722) + Research ($0) + Ownership ($0) = $7,722.
Last reported payment date: 2024-12-20 • Largest payer in this snapshot: Novartis Pharmaceuticals Corporation ($687).
Total Amount
$7,722
General + Research + Ownership
Payments
398
Total payment records
General Amount
$7,722
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Novartis Pharmaceuticals Corporation | $687 |
| Janssen Biotech, Inc. | $639 |
| E.R. Squibb & Sons, L.L.C. | $529 |
| Celgene Corporation | $467 |
| PFIZER INC. | $322 |
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: 2010-09-22
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 |
|---|---|---|---|---|
| I20100922000030 | I | Hematology/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 |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 523 | 246 | $0 |
| 99215 | Established patient office or other outpatient visit, 40-54 minutes | 154 | 86 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 54 | 44 | $0 |
| 99205 | New patient office or other outpatient visit, 60-74 minutes | 32 | 32 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 25 | 25 | $0 |
Insurance plans in this area (ZIP 37915)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | TN | |
| Certified Nurse Midwife (Cnm) | TN | |
| - | TN | |
| Surgical Oncology | TN | |
| - | SC | |
| - | TN | |
| - | TN | |
| - | TN | |
| - | TN | |
| - | TN |
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