Dr. Eric S. Schaefer, M.D.
Hematology & Oncology (Hematology & Oncology Physician)
- Medicare participating
At a glance
- Medical school
- Medical College of Ohio (2003)
- Years since graduation
- 23
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 1,492
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2003Medical school: Medical College of Ohio
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Hematology & Oncology Physician primary
AR license E-6041
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Mercy Hospital Northwest Arkansas Rogers, AR
- Washington Regional Medical Center Fayetteville, AR
- Baxter Health Mountain Home, AR
Medical groups
- Highlands Oncology Group PA (84 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 1,492
- Services billed
- 313,522
- Patients’ average age
- 74
| Service | Times | Patients |
|---|---|---|
| Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 56,255 | 282 |
| Injection, gadoterate meglumine, 0.1 ml | 29,506 | 101 |
| Injection, pembrolizumab, 1 mg | 28,800 | 53 |
| Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use) | 28,050 | 46 |
| Injection, nivolumab, 1 mg | 23,520 | 26 |
| Injection, filgrastim-aafi, biosimilar, (nivestym), 1 microgram | 21,420 | 30 |
| Injection, paclitaxel, 1 mg | 12,646 | 38 |
| Injection, denosumab, 1 mg | 9,060 | 70 |
| Injection, testosterone cypionate, 1 mg | 7,380 | 14 |
| Injection, fosaprepitant, 1 mg | 4,950 | 20 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Ondansetron Odt (ondansetron) Other prescribers in Rogers, AR | 143 |
| Potassium Chloride Other prescribers in Rogers, AR | 124 |
| Prednisone Other prescribers in Rogers, AR | 118 |
| Levofloxacin Other prescribers in Rogers, AR | 113 |
| Xarelto (rivaroxaban) Other prescribers in Rogers, AR | 106 |
| Prochlorperazine Maleate Other prescribers in Rogers, AR | 103 |
| Letrozole Other prescribers in Rogers, AR | 93 |
| Hydrocodone-Acetaminophen (hydrocodone/acetaminophen) Other prescribers in Rogers, AR | 78 |
| Levothyroxine Sodium Other prescribers in Rogers, AR | 78 |
| Olanzapine Other prescribers in Rogers, AR | 73 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 36 companies reported 158 payments worth $148,212 in total to this clinician.
| Cornerstone Specialty Network LLC | $101,309 |
|---|---|
| Daiichi Sankyo Inc. | $18,312 |
| Onmark, Inc. | $11,067 |
| Sanofi US Services Inc. | $6,711 |
| Regeneron Healthcare Solutions, Inc. | $2,792 |
| Janssen Biotech, Inc. | $1,948 |
| Novartis Pharmaceuticals Corporation | $1,468 |
| GlaxoSmithKline, LLC. | $1,315 |
| Compensation for services other than consulting (speaking, faculty) | $72,980 |
|---|---|
| Consulting Fee | $36,961 |
| Honoraria | $30,739 |
| Food and Beverage | $3,883 |
| Travel and Lodging | $3,650 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Cornerstone Specialty Network LLC Dec 15, 2025 | Compensation for services other than consulting (speaking, faculty) | $24,415 |
| Cornerstone Specialty Network LLC Feb 6, 2025 | Compensation for services other than consulting (speaking, faculty) | $9,933 |
| Cornerstone Specialty Network LLC Feb 19, 2025 | Compensation for services other than consulting (speaking, faculty) | $9,933 |
| Cornerstone Specialty Network LLC Mar 18, 2025 | Compensation for services other than consulting (speaking, faculty) | $9,933 |
| Cornerstone Specialty Network LLC Dec 31, 2025 | Compensation for services other than consulting (speaking, faculty) | $9,932 |
| Cornerstone Specialty Network LLC Feb 28, 2025 | Honoraria | $8,502 |
| Onmark, Inc. Nov 14, 2025 | Consulting Fee | $8,313 |
| Daiichi Sankyo Inc. Dec 3, 2025 | Consulting Fee Enhertu · ONCOLOGY | $5,405 |
| Cornerstone Specialty Network LLC Mar 31, 2025 | Honoraria | $4,110 |
| Sanofi US Services Inc. Nov 5, 2025 | Compensation for services other than consulting (speaking, faculty) AYVAKIT · Gastroenterology | $3,790 |
All 66 payments other than meals, newest first
| Company | What it was for | Amount |
|---|---|---|
| Cornerstone Specialty Network LLC Dec 31, 2025 | Compensation for services other than consulting (speaking, faculty) | $9,932 |
| Cornerstone Specialty Network LLC Dec 22, 2025 | Honoraria | $825 |
| Cornerstone Specialty Network LLC Dec 15, 2025 | Compensation for services other than consulting (speaking, faculty) | $24,415 |
| Cornerstone Specialty Network LLC Dec 15, 2025 | Honoraria | $2,750 |
| Cornerstone Specialty Network LLC Dec 10, 2025 | Honoraria | $550 |
| Cornerstone Specialty Network LLC Dec 4, 2025 | Honoraria | $550 |
| Daiichi Sankyo Inc. Dec 3, 2025 | Consulting Fee Enhertu · ONCOLOGY | $5,405 |
| Cornerstone Specialty Network LLC Nov 20, 2025 | Honoraria | $3,100 |
| Cornerstone Specialty Network LLC Nov 20, 2025 | Honoraria | $1,000 |
| Cornerstone Specialty Network LLC Nov 20, 2025 | Honoraria | $825 |
| Janssen Scientific Affairs, LLC Nov 18, 2025 | Consulting Fee RYBREVANT · Oncology | $1,080 |
| Cornerstone Specialty Network LLC Nov 17, 2025 | Honoraria | $550 |
| Onmark, Inc. Nov 14, 2025 | Consulting Fee | $8,313 |
| Sanofi US Services Inc. Nov 12, 2025 | Compensation for services other than consulting (speaking, faculty) AYVAKIT · Gastroenterology | $1,166 |
| Sanofi US Services Inc. Nov 10, 2025 | Compensation for services other than consulting (speaking, faculty) AYVAKIT · Gastroenterology | $1,166 |
| Sanofi US Services Inc. Nov 5, 2025 | Compensation for services other than consulting (speaking, faculty) AYVAKIT · Gastroenterology | $3,790 |
| Daiichi Sankyo Inc. Nov 5, 2025 | Consulting Fee | $940 |
| Sanofi US Services Inc. Nov 5, 2025 | Travel and Lodging AYVAKIT · Gastroenterology · travel to Rogers, AR | $30.50 |
| Daiichi Sankyo Inc. Oct 29, 2025 | Consulting Fee | $823 |
| Cornerstone Specialty Network LLC Oct 25, 2025 | Travel and Lodging travel to Las Vegas, NV | $1,012 |
| Cornerstone Specialty Network LLC Oct 25, 2025 | Travel and Lodging travel to Las Vegas, NV | $961 |
| Cornerstone Specialty Network LLC Oct 15, 2025 | Compensation for services other than consulting (speaking, faculty) | $2,275 |
| Cornerstone Specialty Network LLC Oct 15, 2025 | Honoraria | $550 |
| Cornerstone Specialty Network LLC Oct 8, 2025 | Honoraria | $550 |
| Janssen Global Services, LLC Oct 7, 2025 | Consulting Fee TECVAYLI · Oncology | $575 |
| AstraZeneca Pharmaceuticals LP Oct 6, 2025 | Consulting Fee TAGRISSO · Oncology | $335 |
| Daiichi Sankyo Inc. Sep 24, 2025 | Consulting Fee DATROWAY · ONCOLOGY | $940 |
| Regeneron Healthcare Solutions, Inc. Sep 19, 2025 | Consulting Fee LIBTAYO · ONCOLOGY | $2,493 |
| Regeneron Healthcare Solutions, Inc. Sep 19, 2025 | Consulting Fee LIBTAYO · ONCOLOGY | $208 |
| Daiichi Sankyo Inc. Sep 17, 2025 | Consulting Fee DATROWAY · ONCOLOGY | $1,388 |
| Onmark, Inc. Sep 11, 2025 | Travel and Lodging travel to San Diego, CA | $681 |
| Onmark, Inc. Sep 11, 2025 | Travel and Lodging travel to San Diego, CA | $323 |
| Daiichi Sankyo Inc. Sep 3, 2025 | Consulting Fee | $940 |
| Daiichi Sankyo Inc. Aug 20, 2025 | Consulting Fee Enhertu · ONCOLOGY | $940 |
| Sanofi US Services Inc. Aug 1, 2025 | Compensation for services other than consulting (speaking, faculty) AYVAKIT · Gastroenterology | $437 |
| Cornerstone Specialty Network LLC Jul 22, 2025 | Honoraria | $975 |
| Daiichi Sankyo Inc. Jun 18, 2025 | Consulting Fee DATROWAY · ONCOLOGY | $940 |
| Janssen Biotech, Inc. Jun 13, 2025 | Consulting Fee ERLEADA · Oncology | $1,263 |
| Daiichi Sankyo Inc. Jun 4, 2025 | Consulting Fee DATROWAY · ONCOLOGY | $940 |
| Daiichi Sankyo Inc. Jun 4, 2025 | Consulting Fee DATROWAY · ONCOLOGY | $940 |
| Cornerstone Specialty Network LLC May 20, 2025 | Honoraria | $550 |
| Novartis Pharmaceuticals Corporation May 19, 2025 | Consulting Fee | $1,375 |
| Janssen Biotech, Inc. May 2, 2025 | Consulting Fee RYBREVANT · Oncology | $575 |
| Daiichi Sankyo Inc. Apr 16, 2025 | Consulting Fee DATROWAY · ONCOLOGY | $833 |
| Onmark, Inc. Apr 11, 2025 | Consulting Fee | $175 |
| Cornerstone Specialty Network LLC Apr 9, 2025 | Honoraria | $2,250 |
| Cornerstone Specialty Network LLC Apr 9, 2025 | Honoraria | $1,000 |
| Daiichi Sankyo Inc. Apr 9, 2025 | Consulting Fee DATROWAY · ONCOLOGY | $833 |
| Cornerstone Specialty Network LLC Mar 31, 2025 | Honoraria | $4,110 |
| Daiichi Sankyo Inc. Mar 26, 2025 | Consulting Fee DATROWAY · ONCOLOGY | $833 |
| Cornerstone Specialty Network LLC Mar 18, 2025 | Compensation for services other than consulting (speaking, faculty) | $9,933 |
| Onmark, Inc. Mar 18, 2025 | Consulting Fee | $350 |
| Onmark, Inc. Mar 16, 2025 | Consulting Fee | $350 |
| Cornerstone Specialty Network LLC Mar 14, 2025 | Travel and Lodging travel to Dallas, TX | $402 |
| Cornerstone Specialty Network LLC Mar 14, 2025 | Travel and Lodging travel to Dallas, TX | $240 |
| Cornerstone Specialty Network LLC Mar 13, 2025 | Honoraria | $550 |
| Cornerstone Specialty Network LLC Feb 28, 2025 | Honoraria | $8,502 |
| Cornerstone Specialty Network LLC Feb 28, 2025 | Honoraria | $1,002 |
| Cornerstone Specialty Network LLC Feb 25, 2025 | Honoraria | $550 |
| Daiichi Sankyo Inc. Feb 20, 2025 | Consulting Fee | $823 |
| Cornerstone Specialty Network LLC Feb 19, 2025 | Compensation for services other than consulting (speaking, faculty) | $9,933 |
| Cornerstone Specialty Network LLC Feb 6, 2025 | Compensation for services other than consulting (speaking, faculty) | $9,933 |
| GlaxoSmithKline, LLC. Jan 30, 2025 | Consulting Fee | $1,300 |
| Onmark, Inc. Jan 9, 2025 | Consulting Fee | $350 |
| Daiichi Sankyo Inc. Jan 8, 2025 | Consulting Fee | $470 |
| Daiichi Sankyo Inc. Jan 8, 2025 | Consulting Fee | $235 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.
Industry-funded research
Named as a principal investigator on 21 industry-funded studies in 2025, from 10 companies. The companies reported $1,269,769 in research payments for these studies, mostly to the institutions running them.
- An open label multi center LDK378 roll over protocol for patients who have completed a previous Novartis sponsored LDK378 study and are judged by the investigator to benefit from continued LDK378 treatment
Novartis Pharmaceuticals Corporation - A Study of First-Line Olomorasib (LY3537982) and Pembrolizumab With or Without Chemotherapy in Patients With Advanced KRAS G12C-Mutant Non-small Cell Lung Cancer
Eli Lilly and Company · Recruiting · NCT06119581 - A Phase III, Randomised, Open-label, Global Study of Datopotamab Deruxtecan (Dato-DXd) in Combination With Rilvegostomig (AZD2936) or Rilvegostomig Monotherapy Versus Pembrolizumab Monotherapy for the First-line Treat…
AstraZeneca Pharmaceuticals LP - A Phase III, Randomised, Open-label, Multicentre, Global Study of Datopotamab Deruxtecan (Dato-DXd) in Combination with Durvalumab and Carboplatin Versus Pembrolizumab in Combination with Platinum-based Chemotherapy f…
AstraZeneca Pharmaceuticals LP - A Phase 3 Randomized Open-Label Study of Adjuvant Pembrolizumab With or Without MK-2870 in Participants With Resectable Stage II to IIIB N2 NSCLC not Achieving pCR After Receiving Neoadjuvant Pembrolizumab With Platin…
Merck Sharp & Dohme LLC - A phase III,two arm,parallel,randomized,multi center,open label,global study to determine the efficacy of volrustomig,plus chemotherapy versus pembrolizumab plus chemotherapy for first line treatment of patients with …
AstraZeneca Pharmaceuticals LP - HERTHENA-Lung02: A Study of Patritumab Deruxtecan Versus Platinum-based Chemotherapy in Metastatic or Locally Advanced EGFRm NSCLC After Failure of EGFR TKI Therapy
Daiichi Sankyo Inc. · Active, not recruiting · NCT05338970 - Phase 2 Trial of Adagrasib Monotherapy and in Combination With Pembrolizumab and a Phase 3 Trial of Adagrasib in Combination in Patients With a KRAS G12C Mutation KRYSTAL-7
Mirati Therapeutics, Inc. · Recruiting · NCT04613596 - Ifinatamab Deruxtecan (I-DXd) in Subjects With Pretreated Extensive-Stage Small Cell Lung Cancer (ES-SCLC)
Daiichi Sankyo Inc. · Active, not recruiting · NCT05280470 - A phase III,open label,sponsor blind,randomized study of dato dxd with or without osimertinib versus platinum based doublet chemotherapy for participants with egfr mutated locally advanced or metastatic non small cell…
AstraZeneca UK Limited
From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.