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Dr. Michael Lew, MD

Anesthesiology (Anesthesiology Physician)

1500 E Duarte Rd
Duarte, CA 91010

Who else practices at this address →

Los Angeles County includes primary care (7% of residents) and mental health (13% of residents) shortage areas. About shortage areas

Call (626) 359-8111

  • Medicare participating

At a glance

Years since graduation
36
In the NPI registry since
2006
Medicare patients seen, 2024
316

Licensed in California since 1992, 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

  • 1990Medical school: University of Southern California Keck School of Medicine
  • 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

  • Anesthesiology Physician primary
    CA license G73219 (first issued 1992; current)

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

Map: Anesthesiology per capita by county →

Where they work

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
316
Services billed
364
Patients’ average age
71
Most frequent Medicare services, 2023
ServiceTimesPatients
Insertion of artery tube for blood sampling or infusion through skin6362
Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope4140
Anesthesia for other procedure on large bowel using an endoscope4040
Anesthesia for extensive removal of prostate2727
Anesthesia for other procedure on upper abdomen2525
Anesthesia for other closed procedure on chest2525
Anesthesia for procedure on small and large bowel using an endoscope2121
Anesthesia for procedure on upper urinary tubes or removal of kidney for transplant1313

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.

Payments from drug and device companies

In 2025, 4 companies reported 19 payments worth $17,014 in total to this clinician.

By company
Heron Therapeutics, Inc.$10,370
Cumberland Pharmaceuticals, Inc.$6,396
Vertex Pharmaceuticals Incorporated$125
Urogen Pharma, Inc.$124
By type
Compensation for services other than consulting (speaking, faculty)$15,315
Travel and Lodging$903
Food and Beverage$795
Education$0.73

What the payments were for

Largest payments other than meals
DateCompanyWhat it was forAmount
Jan 24, 2025Heron Therapeutics, Inc.
Jan 24, 2025
Compensation for services other than consulting (speaking, faculty)
APONVIE; ZYNRELEF · NAUSEAVOMITING
$6,600
Oct 21, 2025Cumberland Pharmaceuticals, Inc.
Oct 21, 2025
Compensation for services other than consulting (speaking, faculty)
CALDOLOR · ANESTHESIOLOGY PAIN MANAGEMENT
$3,075
Aug 5, 2025Heron Therapeutics, Inc.
Aug 5, 2025
Compensation for services other than consulting (speaking, faculty)
APONVIE · NAUSEAVOMITING
$2,640
Nov 14, 2025Cumberland Pharmaceuticals, Inc.
Nov 14, 2025
Compensation for services other than consulting (speaking, faculty)
CALDOLOR · ANESTHESIOLOGY PAIN MANAGEMENT
$2,500
Jan 24, 2025Heron Therapeutics, Inc.
Jan 24, 2025
Travel and Lodging
APONVIE; ZYNRELEF · NAUSEAVOMITING · travel to CHANDLER, AZ
$676
Apr 2, 2025Cumberland Pharmaceuticals, Inc.
Apr 2, 2025
Compensation for services other than consulting (speaking, faculty)
CALDOLOR · ANESTHESIOLOGY PAIN MANAGEMENT
$500
Jan 24, 2025Heron Therapeutics, Inc.
Jan 24, 2025
Travel and Lodging
APONVIE; ZYNRELEF · NAUSEAVOMITING · travel to CHANDLER, AZ
$84.00
Jan 24, 2025Heron Therapeutics, Inc.
Jan 24, 2025
Travel and Lodging
APONVIE; ZYNRELEF · NAUSEAVOMITING · travel to CHANDLER, AZ
$67.26
Aug 5, 2025Heron Therapeutics, Inc.
Aug 5, 2025
Travel and Lodging
APONVIE · NAUSEAVOMITING · travel to WOODLAND HILLS, CA
$46.20
Jan 24, 2025Heron Therapeutics, Inc.
Jan 24, 2025
Travel and Lodging
APONVIE; ZYNRELEF · NAUSEAVOMITING · travel to CHANDLER, AZ
$29.40
All 11 payments other than meals, newest first
All payments other than meals
DateCompanyWhat it was forAmount
Nov 14, 2025Cumberland Pharmaceuticals, Inc.
Nov 14, 2025
Compensation for services other than consulting (speaking, faculty)
CALDOLOR · ANESTHESIOLOGY PAIN MANAGEMENT
$2,500
Oct 21, 2025Cumberland Pharmaceuticals, Inc.
Oct 21, 2025
Compensation for services other than consulting (speaking, faculty)
CALDOLOR · ANESTHESIOLOGY PAIN MANAGEMENT
$3,075
Aug 5, 2025Heron Therapeutics, Inc.
Aug 5, 2025
Compensation for services other than consulting (speaking, faculty)
APONVIE · NAUSEAVOMITING
$2,640
Aug 5, 2025Heron Therapeutics, Inc.
Aug 5, 2025
Travel and Lodging
APONVIE · NAUSEAVOMITING · travel to WOODLAND HILLS, CA
$46.20
Jun 10, 2025Cumberland Pharmaceuticals, Inc.
Jun 10, 2025
Education
CALDOLOR · ANESTHESIOLOGY PAIN MANAGEMENT · in-kind
$0.73
Apr 2, 2025Cumberland Pharmaceuticals, Inc.
Apr 2, 2025
Compensation for services other than consulting (speaking, faculty)
CALDOLOR · ANESTHESIOLOGY PAIN MANAGEMENT
$500
Jan 24, 2025Heron Therapeutics, Inc.
Jan 24, 2025
Compensation for services other than consulting (speaking, faculty)
APONVIE; ZYNRELEF · NAUSEAVOMITING
$6,600
Jan 24, 2025Heron Therapeutics, Inc.
Jan 24, 2025
Travel and Lodging
APONVIE; ZYNRELEF · NAUSEAVOMITING · travel to CHANDLER, AZ
$676
Jan 24, 2025Heron Therapeutics, Inc.
Jan 24, 2025
Travel and Lodging
APONVIE; ZYNRELEF · NAUSEAVOMITING · travel to CHANDLER, AZ
$84.00
Jan 24, 2025Heron Therapeutics, Inc.
Jan 24, 2025
Travel and Lodging
APONVIE; ZYNRELEF · NAUSEAVOMITING · travel to CHANDLER, AZ
$67.26
Jan 24, 2025Heron Therapeutics, Inc.
Jan 24, 2025
Travel and Lodging
APONVIE; ZYNRELEF · NAUSEAVOMITING · travel to CHANDLER, AZ
$29.40

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 California →

Other Anesthesiology clinicians in Duarte

Sources

NPI registry (CMS NPPES, November 2026; record last updated November 12, 2020), 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 1174580955. Official NPI registry record (opens in a new tab). Clinicians can correct their information in NPPES; changes appear here after our next monthly update.