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Dr. Allison Friedenberg, M.D.

Pulmonology (Pulmonary Disease Physician)

At a glance

Years since graduation
24
In the NPI registry since
2007

Licensed in California since 2010, 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. 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

  • 2002Medical school: University of Wisconsin School 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

  • Pulmonary Disease Physician primary
    CA license A113474 (first issued 2010; current)

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

Map: Pulmonology 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 prescriptions

Most prescribed drugs, Medicare Part D 2024
DrugPrescriptions
Breyna (budesonide/formoterol fumarate)
Other prescribers in San Francisco, CA
434
Spiriva Respimat (tiotropium bromide)
Other prescribers in San Francisco, CA
279
Albuterol Sulfate Hfa (albuterol sulfate)
Other prescribers in San Francisco, CA
193
Prednisone
Other prescribers in San Francisco, CA
151
Azithromycin
Other prescribers in San Francisco, CA
128
Alvesco (ciclesonide)100
Fasenra Pen (benralizumab)75
Wixela Inhub (fluticasone propion/salmeterol)
Other prescribers in San Francisco, CA
72
Azelastine Hcl
Other prescribers in San Francisco, CA
58
Stiolto Respimat (tiotropium br/olodaterol hcl)
Other prescribers in San Francisco, CA
40

Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.

Other Pulmonology clinicians in San Francisco

Sources

NPI registry (CMS NPPES, November 2026; record last updated October 31, 2024), 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 1740471044. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.