Dr. Mark T. Fleming, MD
Hematology & Oncology (Hematology & Oncology Physician)
3000 Coliseum Dr, Suite 104
Hampton, VA 23666
Who else practices at this address →
Hampton city is a federal dental shortage area. About shortage areas
- Medicare participating
At a glance
- Medical school
- University of Toledo College of Medicine (1999)
- Years since graduation
- 27
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 1,051
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
- 1999Medical school: University of Toledo College of Medicine
- 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
VA license 0101240180
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Sentara Norfolk General Hospital Norfolk, VA
- Sentara Leigh Hospital Norfolk, VA
- Sentara Virginia Beach General Hospital Virginia Beach, VA
- Sentara Careplex Hospital Hampton, VA
- Chesapeake General Hospital Chesapeake, VA
Medical groups
- Virginia Oncology Associates (112 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
- 1,051
- Services billed
- 236,169
- Patients’ average age
- 75
| Service | Times | Patients |
|---|---|---|
| Injection, pembrolizumab, 1 mg | 56,400 | 48 |
| Injection, nivolumab, 1 mg | 28,560 | 18 |
| Injection, darbepoetin alfa, 1 microgram (non-esrd use) | 17,200 | 30 |
| Injection, aprepitant, 1 mg | 15,210 | 35 |
| Injection, docetaxel, 1 mg | 11,067 | 24 |
| Injection, fosaprepitant, 1 mg | 8,700 | 13 |
| Injection, azacitidine, 1 mg | 6,800 | 16 |
| Injection, denosumab, 1 mg | 4,800 | 27 |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 3,328 | 716 |
| Injection, dexamethasone sodium phosphate, 1 mg | 3,110 | 88 |
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 |
|---|---|
| Prednisone Other prescribers in Hampton, VA | 197 |
| Abiraterone Acetate | 138 |
| Erleada (apalutamide) | 84 |
| Cabometyx (cabozantinib s-malate) | 60 |
| Xtandi (enzalutamide) | 55 |
| Eliquis (apixaban) Other prescribers in Hampton, VA | 54 |
| Dexamethasone Other prescribers in Hampton, VA | 46 |
| Oxycodone-Acetaminophen (oxycodone hcl/acetaminophen) Other prescribers in Hampton, VA | 36 |
| Promethazine Hcl Other prescribers in Hampton, VA | 33 |
| Xarelto (rivaroxaban) Other prescribers in Hampton, VA | 32 |
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, 5 companies reported 6 payments worth $6,442 in total to this clinician.
| Novartis Pharmaceuticals Corporation | $2,800 |
|---|---|
| Merck Sharp & Dohme LLC | $2,240 |
| Janssen Biotech, Inc. | $1,217 |
| Array Biopharma Inc | $150 |
| AstraZeneca Pharmaceuticals LP | $35.06 |
| Consulting Fee | $6,150 |
|---|---|
| Compensation for services other than consulting (speaking, faculty) | $150 |
| Food and Beverage | $107 |
| Education | $35.06 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Novartis Pharmaceuticals Corporation Aug 27, 2025 | Consulting Fee | $2,800 |
| Merck Sharp & Dohme LLC Dec 15, 2025 | Consulting FeeCompany’s descriptionPayment made to Third Party Organization not to Physician. | $2,240 |
| Janssen Biotech, Inc. Mar 28, 2025 | Consulting Fee ERLEADA · Oncology | $1,110 |
| Array Biopharma Inc Jul 19, 2025 | Compensation for services other than consulting (speaking, faculty) LORBRENA; BRAFTOVI; MEKTOVI · ONCOLOGY | $150 |
| AstraZeneca Pharmaceuticals LP Nov 13, 2025 | Education IMFINZI · Oncology · in-kind Company’s descriptionJournal Article | $35.06 |
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 25 industry-funded studies in 2025, from 11 companies. The companies reported $1,095,360 in research payments for these studies, mostly to the institutions running them.
- An International Prospective Open-label, Multi-center, Randomized Phase III Study comparing [177Lu] Lu-PSMA-617 versus Observation to delay castration or disease recurrence in adult male patients with PSMA positive Ol…
Novartis Pharmaceuticals Corporation - An Open-label, Randomized, Phase III Study Comparing 177Lu-PSMA-617 in Combination With Standard of Care, Versus Standard of Care Alone, in Adult Male Patients With Metastatic Hormone Sensitive Prostate Cancer (mHSPC)
Novartis Pharmaceuticals Corporation - A Dose-Escalation and Expansion Study of the Safety and Efficacy of XL092 in Combination with Immuno-Oncology Agents in Subjects with Unresectable Advanced or Metastatic Solid Tumors
Exelixis Inc. - A Phase 3, Randomized, Study of Neoadjuvant Chemotherapy alone versus Neoadjuvant Chemotherapy plus Nivolumab or Nivolumab and BMS-986205, Followed by Continued Post-Surgery Therapy with Nivolumab or Nivolumab and BMS…
E.r. Squibb & Sons, L.l.c. - A Phase III Double-Blind Randomised Placebo-Controlled Study Assessing the Efficacy and Safety of Capivasertib + Docetaxel Versus Placebo + Docetaxel as Treatment for Patients with Metastatic Castration Resistant Pros…
AstraZeneca UK Limited - A Phase 3, Open-label, Multicenter, Randomized Study of Xaluritamig vs Cabazitaxel or Second Androgen Receptor-Directed Therapy in Subjects With Metastatic Castration-Resistant Prostate Cancer Previously Treated With …
Amgen Inc. - A Study of TAR200 in Combination With Cetrelimab Versus Concurrent Chemoradiotherapy in Participants With Muscle invasive Bladder Cancer MIBC of the Bladder
Janssen Research & Development, LLC - PSMAfore: A Phase III, Open-label, Multi-Center, Randomized Study Comparing 177Lu-PSMA-617 vs. a Change of Androgen Receptor-directed Therapy in the Treatment of Taxane Nave Men With Progressive Metastatic Castrate Re…
Novartis Pharmaceuticals Corporation - A Study to Compare Chemotherapy Alone Versus Chemotherapy Plus Nivolumab or Nivolumab and BMS-986205, Followed by Continued Therapy After Surgery With Nivolumab or Nivolumab and BMS-986205 in Participants With Muscle Invasive Bladder Cancer
E.r. Squibb & Sons, L.l.c. · Completed · NCT03661320 - A Phase 1 Study Evaluating the Safety, Tolerability, Pharmacokinetics, and Efficacy of AMG 509 in Subjects With Metastatic Castration-Resistant Prostate Cancer
Amgen Inc.
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.