Skip to main content

Dr. Mariam Alexander

Medical Oncology (Medical Oncology Physician)

  • Medicare participating

At a glance

Years since graduation
12
In the NPI registry since
2014
Medicare patients seen, 2024
170

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. What an NPI is

Education and training

  • 2014Registered with an NPI (national billing number; not a license date)

Medicare’s Care Compare data doesn’t list this clinician’s medical school. 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

  • Medical Oncology Physician primary
    SC license 83619
  • Hematology (Internal Medicine) Physician
    SC license 83619

As reported to the NPI registry. To confirm a license is current, check the state medical board.

Map: Medical Oncology per capita by county →

Where they work

Hospitals

Medical groups

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
170
Services billed
802
Patients’ average age
73
Most frequent Medicare services, 2023
ServiceTimesPatients
Established patient office or other outpatient visit, 30-39 minutes291153
Established patient office or other outpatient visit, 40-54 minutes14577
New patient office or other outpatient visit, 60-74 minutes3737
Injection of drug or substance under skin or into muscle2316

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

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 14 payments worth $17,639 in total to this clinician.

By type
Consulting Fee$17,506
Food and Beverage$134

What the payments were for

Largest payments other than meals
DateCompanyWhat it was forAmount
Oct 21, 2025Amgen Inc.
Oct 21, 2025
Consulting Fee
IMDELLTRA (AMG757) · Hematology
$3,087
Sep 19, 2025Regeneron Healthcare Solutions, Inc.
Sep 19, 2025
Consulting Fee
LIBTAYO · ONCOLOGY
$2,493
Oct 28, 2025AbbVie Inc.
Oct 28, 2025
Consulting Fee$2,100
Feb 3, 2025AbbVie Inc.
Feb 3, 2025
Consulting Fee$1,800
Jan 1, 2025Janssen Biotech, Inc.
Jan 1, 2025
Consulting Fee
RYBREVANT · Oncology
$1,635
Nov 5, 2025Janssen Biotech, Inc.
Nov 5, 2025
Consulting Fee
RYBREVANT · Oncology
$1,350
Dec 3, 2025Daiichi Sankyo Inc.
Dec 3, 2025
Consulting Fee$1,102
Oct 7, 2025Daiichi Sankyo Inc.
Oct 7, 2025
Consulting Fee
DATROWAY · ONCOLOGY
$1,102
Oct 21, 2025Amgen Inc.
Oct 21, 2025
Consulting Fee
IMDELLTRA (AMG757) · Hematology
$1,029
Apr 10, 2025Janssen Biotech, Inc.
Apr 10, 2025
Consulting Fee
RYBREVANT · Oncology
$1,000
All 12 payments other than meals, newest first
All payments other than meals
DateCompanyWhat it was forAmount
Dec 3, 2025Daiichi Sankyo Inc.
Dec 3, 2025
Consulting Fee$1,102
Nov 5, 2025Janssen Biotech, Inc.
Nov 5, 2025
Consulting Fee
RYBREVANT · Oncology
$1,350
Oct 28, 2025AbbVie Inc.
Oct 28, 2025
Consulting Fee$2,100
Oct 21, 2025Amgen Inc.
Oct 21, 2025
Consulting Fee
IMDELLTRA (AMG757) · Hematology
$3,087
Oct 21, 2025Amgen Inc.
Oct 21, 2025
Consulting Fee
IMDELLTRA (AMG757) · Hematology
$1,029
Oct 7, 2025Daiichi Sankyo Inc.
Oct 7, 2025
Consulting Fee
DATROWAY · ONCOLOGY
$1,102
Sep 19, 2025Regeneron Healthcare Solutions, Inc.
Sep 19, 2025
Consulting Fee
LIBTAYO · ONCOLOGY
$2,493
Sep 19, 2025Regeneron Healthcare Solutions, Inc.
Sep 19, 2025
Consulting Fee
LIBTAYO · ONCOLOGY
$208
Aug 19, 2025AbbVie Inc.
Aug 19, 2025
Consulting Fee$600
Apr 10, 2025Janssen Biotech, Inc.
Apr 10, 2025
Consulting Fee
RYBREVANT · Oncology
$1,000
Feb 3, 2025AbbVie Inc.
Feb 3, 2025
Consulting Fee$1,800
Jan 1, 2025Janssen Biotech, Inc.
Jan 1, 2025
Consulting Fee
RYBREVANT · Oncology
$1,635

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.

Who received the most in South Carolina →

Industry-funded research

Named as a principal investigator on 10 industry-funded studies in 2025, from 7 companies. The companies reported $339,345 in research payments for these studies, mostly to the institutions running them.

  • 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 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 3, Open-label, Multicenter, Randomized Study of Tarlatamab in Combination With Durvalumab vs Durvalumab Alone in Subjects With Extensive-Stage Small-Cell Lung Cancer Following Platinum, Etoposide and Durvaluma…
    Amgen Inc.
  • A Phase 3, Open-label, Randomized Study of Lazertinib with Subcutaneous Amivantamab Administered via Manual Injection Compared with Intravenous Amivantamab or Amivantamab Subcutaneous On Body Delivery System in Patien…
    Janssen Research & Development, LLC
  • A Phase 3, Open-label, Randomized Study of Lazertinib with Subcutaneous Amivantamab Administered via Manual Injection Compared with Intravenous Amivantamab or Amivantamab Subcutaneous On Body Delivery System in Patien…
    Janssen Research & Development, LLC
  • A Phase 1b Study Evaluating the Safety and Efficacy of AMG 757 in Combination With AMG 404 in Subjects With Small Cell Lung Cancer (SCLC)
    Amgen Inc.
  • 1LM SCLC Tecentriq Lurbinectedin
    Genentech, Inc.
  • Study of REGN5093-M114 (METxMET Antibody-Drug Conjugate) in Adult Patients With Mesenchymal Epithelial Transition Factor (MET) Overexpressing Advanced Cancer
    Regeneron Pharmaceuticals, Inc. · Terminated · NCT04982224
  • DAREON-5: An open-label, multi-center Phase II dose selection trial of intravenous BI 764532, a DLL3-targeting T cell engager, in patients with relapsed/refractory extensive-stage small cell lung cancer and in patient…
    Boehringer Ingelheim Pharmaceuticals, Inc.
  • A phase 3, multicenter, double-blind, placebo-controlled study assessing the efficacy and safety of olomorasib in combination with standard of care immunotherapy in participants with resected or unresectable kras G12C…
    Eli Lilly and Company

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.

Other Medical Oncology clinicians in Charleston

Sources

NPI registry (CMS NPPES, November 2026; record last updated March 2, 2022), Medicare Care Compare, Medicare Physician & Other Practitioners (2024), Medicare Part D Prescribers (2024) and Open Payments (2025). Information is self-reported or billed data and may be out of date; call before visiting.

NPI 1679987382. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.