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Dr. Dan H. Barouch, MD PHD

Infectious Disease (Infectious Disease Physician)

  • Medicare participating

At a glance

Medical school
Harvard Medical School (1999)
Years since graduation
27
In the NPI registry since
2005
Medicare patients seen, 2024
28

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: Harvard Medical School
  • 2005Registered 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
    MA license 210237
  • Internal Medicine Physician
    MA license 210237

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
28
Services billed
70
Patients’ average age
71
Most frequent Medicare services, 2023
ServiceTimesPatients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes3716
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes1716

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.

Industry-funded research

Named as a principal investigator on 2 industry-funded studies in 2025, from 1 companies. The companies reported $1,948,487 in research payments for these studies, mostly to the institutions running them.

  • Crc coe a phase 2 efficacy and safety study of cibinqo in nonhospitalized lowrisk adult participants with postacute sequelae of SARSCOV2 infection
    Pfizer Inc.
  • Pfizerbarouch vaccine mucosal immunity collaboration
    Pfizer 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.

Other Infectious Disease clinicians in Boston

Sources

NPI registry (CMS NPPES, November 2026; record last updated April 28, 2011), 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 1992786974. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.