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Dr. Benjamin M. Solomon, MD

Hematology & Oncology (Hematology & Oncology Physician)

  • Medicare participating

At a glance

Years since graduation
19
In the NPI registry since
2007
Medicare patients seen, 2024
459

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

  • 2007Medical school: University of Nebraska College of Medicine
  • 2007Registered 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
    SD license 8825
  • Internal Medicine Physician
    MN license 50980
  • Student in an Organized Health Care Education/Training Program

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

Map: Hematology & 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
459
Services billed
1,848
Patients’ average age
74
Most frequent Medicare services, 2023
ServiceTimesPatients
Established patient office or other outpatient visit, 30-39 minutes597319
Established patient office or other outpatient visit, 40-54 minutes245128
Established patient office or other outpatient visit, 20-29 minutes178148
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes5650
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes3823
New patient office or other outpatient visit, 60-74 minutes3636
New patient office or other outpatient visit, 45-59 minutes2929
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes1715

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

Most prescribed drugs, Medicare Part D 2024
DrugPrescriptions
Prednisone
Other prescribers in Sioux Falls, SD
81
Eliquis (apixaban)
Other prescribers in Sioux Falls, SD
52
Xtandi (enzalutamide)46
Abiraterone Acetate44
Gabapentin
Other prescribers in Sioux Falls, SD
43
Levothyroxine Sodium
Other prescribers in Sioux Falls, SD
28
Tagrisso (osimertinib mesylate)27
Prochlorperazine Maleate
Other prescribers in Sioux Falls, SD
26
Inlyta (axitinib)23
Imbruvica (ibrutinib)19

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, 6 companies reported 8 payments worth $327 in total to this clinician.

By company
Tempus Ai, Inc$120
Pfizer Inc.$78.00
Celgene Corporation$65.40
Beone Medicines USA, Inc.$29.09
AstraZeneca Pharmaceuticals LP$20.40
Daiichi Sankyo Inc.$14.27
By type
Food and Beverage$249
Education$78.00

What the payments were for

Largest payments other than meals
DateCompanyWhat it was forAmount
Jan 21, 2025Pfizer Inc.
Jan 21, 2025
Education
PADCEV · ONCOLOGY · in-kind
$26.00
May 6, 2025Pfizer Inc.
May 6, 2025
Education
PADCEV · ONCOLOGY · in-kind
$26.00
Jul 29, 2025Pfizer Inc.
Jul 29, 2025
Education
PADCEV · ONCOLOGY · in-kind
$26.00

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 Dakota →

Industry-funded research

Named as a principal investigator on 19 industry-funded studies in 2025, from 11 companies. The companies reported $1,451,378 in research payments for these studies, mostly to the institutions running them.

  • A Phase 1b Study Evaluating the Safety, Tolerability, Pharmacokinetics, and Preliminary Anti-Tumor Activity of Subcutaneous Tarlatamab in Subjects With Extensive Stage Small Cell Lung Cancer (DeLLphi-308)
    Amgen Inc.
  • A Phase 1b Study Evaluating the Safety and Efficacy of First-Line Tarlatamab in Combination With Carboplatin, Etoposide, and PD-L1 Inhibitor in Subjects With Extensive Stage Small Cell Lung (DeLLphi-303)
    Amgen Inc.
  • A phase 3b,randomized,multicenter,open label study to assess the efficacy of durvalumab plus tremelimumab versus pembrolizumab in combination with platinum based chemotherapy for first line treatment in mtastatic non …
    AstraZeneca Pharmaceuticals LP
  • A Phase 1b Study Evaluating the Safety, Tolerability, Pharmacokinetics, and Efficacy of Tarlatamab in Combination With AB248 in Participants With Extensive Stage Small Cell Lung Cancer (DeLLphi-311)
    Amgen Inc.
  • A Randomized 2-cohort Double-blind Placebo-controlled Phase III Study of AZD5305 in Combination with Physicians Choice New Hormonal Agents in Patients with HRRm and non-HRRm Metastatic Castration-Sensitive Prostate Ca…
    AstraZeneca Pharmaceuticals LP
  • A Phase III Randomized Double blind Multicenter Global Study of Rilvegostomig or Pembrolizumab in Combination with Platinum based Chemotherapy for the First line Treatment of Patients with Metastatic Non squamous Non …
    AstraZeneca Pharmaceuticals LP
  • A Phase III, double-blind, placebo-controlled, Randomized, Multicenter, International Study of Durvalumab Plus Oleclumab and Durvalumab Plus Monalizumab in Patients With Locally Advanced Stage III, Unresectable Non-sm…
    AstraZeneca Pharmaceuticals LP
  • Artemide Lung02 a phase III global study of rilvegostomig or pembrolizumab for patients with metastatic squamous non small cell lung cancer
    AstraZeneca Pharmaceuticals LP
  • An open label, Phase I dose-finding and expansion study of BI 765179 as monotherapy and in combination with ezabenlimab (BI 754091) in patients with advanced solid cancers, and BI 765179 in combination with pembrolizu…
    Boehringer Ingelheim Pharmaceuticals, Inc.
  • 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

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 Hematology & Oncology clinicians in Sioux Falls

Sources

NPI registry (CMS NPPES, November 2026; record last updated October 16, 2018), 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 1912107368. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.