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Dr. Mitchell Horwitz

Infectious Disease (Infectious Disease Physician)

  • Medicare participating

At a glance

Years since graduation
34
In the NPI registry since
2006
Medicare patients seen, 2024
86

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

  • 1992Medical school: Rush Medical College of Rush University
  • 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

  • Infectious Disease Physician primary
  • Hematology & Oncology Physician

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

Map: Infectious Disease 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
86
Services billed
243
Patients’ average age
66
Most frequent Medicare services, 2023
ServiceTimesPatients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes14024
Established patient office or other outpatient visit, 40-54 minutes7834
Established patient office or other outpatient visit, 30-39 minutes5040

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
Acyclovir
Other prescribers in Durham, NC
47
Jakafi (ruxolitinib phosphate)29
Hydrocortisone
Other prescribers in Durham, NC
18
Montelukast Sodium
Other prescribers in Durham, NC
16
Tasigna (nilotinib hcl)12

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, 4 companies reported 24 payments worth $21,403 in total to this clinician.

By company
Gamida Cell Inc.$12,279
Incyte Corporation$7,858
Vertex Pharmaceuticals Incorporated$941
National Marrow Donor Program$325
By type
Consulting Fee$19,010
Travel and Lodging$1,748
Food and Beverage$645

What the payments were for

Largest payments other than meals
DateCompanyWhat it was forAmount
Aug 11, 2025Gamida Cell Inc.
Aug 11, 2025
Consulting Fee
OMISIRGE · ONCOLOGY
$12,160
May 8, 2025Incyte Corporation
May 8, 2025
Consulting Fee
Niktimvo · Oncology
$6,850
Apr 24, 2025Incyte Corporation
Apr 24, 2025
Travel and Lodging
Niktimvo · Oncology · travel to Denver, CO
$482
Jul 27, 2025Vertex Pharmaceuticals Incorporated
Jul 27, 2025
Travel and Lodging
travel to BOSTON, MA · in-kind
$417
Jul 28, 2025Vertex Pharmaceuticals Incorporated
Jul 28, 2025
Travel and Lodging
travel to BOSTON, MA · in-kind
$348
Apr 25, 2025Incyte Corporation
Apr 25, 2025
Travel and Lodging
Niktimvo · Oncology · travel to Denver, CO
$291
Jul 28, 2025Vertex Pharmaceuticals Incorporated
Jul 28, 2025
Travel and Lodging
travel to BOSTON, MA · in-kind
$93.75
Aug 11, 2025Gamida Cell Inc.
Aug 11, 2025
Travel and Lodging
OMISIRGE · ONCOLOGY · travel to CHICAGO, IL
$75.27
Apr 25, 2025Incyte Corporation
Apr 25, 2025
Travel and Lodging
Niktimvo · Oncology · travel to Denver, CO
$42.00

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 North Carolina →

Industry-funded research

Named as a principal investigator on 7 industry-funded studies in 2025, from 6 companies. The companies reported $257,028 in research payments for these studies, mostly to the institutions running them.

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 Infectious Disease clinicians in Durham

Sources

NPI registry (CMS NPPES, November 2026; record last updated September 11, 2025), 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 1710040589. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.