ROBERT DAVID SCHUMAKER (MD) – Hematology & Oncology Physician, NPI 1679573752
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 ROBERT DAVID SCHUMAKER (MD)
PO BOX 10988
KNOXVILLE, TN 379390988
Phone: (865) 862-0998
Fax: (865) 544-1861
Type: Mailing
Old Weisgarber Road, Bearden, Knoxville, Knox County, Tennessee, 37919, United States
SUITE 200
KNOXVILLE, TN 379091292
Phone: (865) 934-5800
Fax: (865) 934-5801
Type: Location
900 E HILL AVE STE 230
KNOXVILLE, TN 379152565
Phone: (865) 862-0998
Fax: (865) 544-1861
Type: Mailing
1415 OLD WEISGARBER RD STE 200
KNOXVILLE, TN 379091341
Phone: (865) 934-5800
Fax: (865) 934-5801
Type: Location
6016 BROOKVALE LN STE 200
KNOXVILLE, TN 379194092
Phone: (865) 862-0998
Fax: (865) 544-1861
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 332 Open Payments records for all available years, with a total value of $6,790.
Total Amount is formed as General ($6,790) + Research ($0) + Ownership ($0) = $6,790.
Last reported payment date: 2024-12-27 • Largest payer in this snapshot: Novartis Pharmaceuticals Corporation ($693).
Total Amount
$6,790
General + Research + Ownership
Payments
332
Total payment records
General Amount
$6,790
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-27
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Novartis Pharmaceuticals Corporation | $693 |
| PFIZER INC. | $314 |
| E.R. Squibb & Sons, L.L.C. | $269 |
| Seagen Inc. | $257 |
| McKesson Drug Company LLC | $253 |
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: 2005-07-06
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20040712001535 | I | Hematology/Oncology | TN | TBD |
| I20050706000402 | I | Hematology/Oncology | KY | 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 |
|---|---|---|---|---|
| Q0138 | Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use) | 39,780 | 40 | $0 |
| J1439 | Injection, ferric carboxymaltose, 1 mg | 24,750 | 12 | $0 |
| J0881 | Injection, darbepoetin alfa, 1 microgram (non-esrd use) | 17,100 | 13 | $0 |
| J0897 | Injection, denosumab, 1 mg | 11,220 | 50 | $0 |
| J1437 | Injection, ferric derisomaltose, 10 mg | 3,000 | 26 | $0 |
Insurance plans in this area (ZIP 37939)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| HEMATOLOGY/ONCOLOGY | TN | 81002 | Urinalysis, manual test | 43 | 13 |
| HEMATOLOGY/ONCOLOGY | TN | 85610 | Blood test, clotting time | 185 | 14 |
| HEMATOLOGY/ONCOLOGY | TN | 96367 | Infusion into a vein for therapy prevention or diagnosis additional sequential infusion up to 1 hour | 451 | 35 |
| HEMATOLOGY/ONCOLOGY | TN | 96375 | Injection of different drug or substance into a vein for therapy, diagnosis, or prevention | 302 | 29 |
| HEMATOLOGY/ONCOLOGY | TN | 96415 | Infusion of chemotherapy into a vein | 135 | 16 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Hematology/Oncology, Internal Medicine | TN | |
| Nurse Practitioner | TN | |
| Nurse Practitioner | TN | |
| Nurse Practitioner | TN | |
| Hematology/Oncology, Internal Medicine | TN | |
| Nurse Practitioner | TN | |
| Nurse Practitioner | TN | |
| Physician Assistant | TN | |
| Nurse Practitioner | TN | |
| Nurse Practitioner | TN |
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