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Mark Benjamin, M.D.

Specialist

  • Medicare participating

At a glance

In the NPI registry since
2006
Medicare patients seen, 2024
162

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

  • 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier

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

  • Specialist primary
    PA license MD026817E

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

Medicare patients and services

Medicare patients, 2024
162
Services billed
1,467
Patients’ average age
74
Most frequent Medicare services, 2023
ServiceTimesPatients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes17492
Established patient office or other outpatient visit, 30-39 minutes10576
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes5753
Test to measure expiratory airflow and volume1918
New patient office or other outpatient visit, 45-59 minutes1616
Test to determine lung volumes using sensors1111

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.

Other Specialist clinicians in Philadelphia

Sources

NPI registry (CMS NPPES, November 2026; record last updated July 8, 2007), 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 Information is self-reported or billed data and may be out of date; call before visiting.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 1992760185. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.