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Dr. Devan Marar, M.D.

Cardiology (Cardiovascular Disease Physician)

  • Medicare participating

At a glance

Years since graduation
19
In the NPI registry since
2009
Medicare patients seen, 2024
929

Licensed in California since 2009, according to the Medical Board of California. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.

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

  • 2009Registered 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

  • Cardiovascular Disease Physician primary
    CA license A107787 (first issued 2009; current)

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

Map: Cardiology 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
929
Services billed
3,048
Patients’ average age
77
Most frequent Medicare services, 2023
ServiceTimesPatients
Established patient office or other outpatient visit, 30-39 minutes557327
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report394336
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function323319
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only169135
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes13572
Injection, regadenoson, 0.1 mg12532
Established patient office or other outpatient visit, 20-29 minutes11297
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes10869
3d radiographic procedure8077
Technetium tc-99m tetrofosmin, diagnostic, per study dose7035

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 Cardiology clinicians in San Francisco

Sources

NPI registry (CMS NPPES, November 2026; record last updated July 19, 2016), 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 1114152717. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.