Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Stewart Greenberg, MD

Individual provider Anesthesiology Physician · NPI 1306941398

Stewart Greenberg, MD practises Anesthesiology in Phoenix, Arizona. Qualified in 1980, 46 years ago. Practices with Valley Anesthesiology Consultants Inc, a 284-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arizona and Florida.

Years since qualifying
46
Licensed in
AZ, FL
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

645 E Missouri Ave Ste 300
Phoenix, AZ 85012-1351
Phone: (602) 262-8900
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 2345 E Thomas Rd Ste 400, Phoenix, AZ 85016-7862 — (602) 343-2900

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 33971 (AZ)
Anesthesiology Physician Taxonomy 207L00000X · Licence ME46931 (FL)

Record details

NPI number1306941398
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedSeptember 14, 2006
Last updated in NPPESDecember 16, 2019
Certification dateDecember 16, 2019

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyANESTHESIOLOGY
Medical schoolOTHER
Graduated 1980 (46 years in practice)
Group practice Valley Anesthesiology Consultants Inc — 284 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations4 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients177
Services billed 185 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Payments from drug and device companies, 2025

Drug and device makers are required by federal law (the Physician Payments Sunshine Act) to report what they pay or give to clinicians, and CMS publishes the reports as Open Payments. This is the 2025 program year. A report is a record of a payment, not an allegation of anything, and many are small items such as meals. Only general payments are listed here; research payments and ownership or investment interests are reported separately by CMS and are not shown.

Food and Beverage $132 1 payment · a meal or drink at a meeting or visit, not a fee

Each amount is the sum of what companies reported for that kind of payment in 2025, rounded to the dollar. Not all of it is income to the clinician: a meal is not a fee, a charitable contribution goes to a charity, and a royalty or an acquisition payment is not a salary.

Check a report, or dispute one, at the source in CMS’s own tool, Open Payments. Corrections go through CMS’s dispute process. This site removes a home address on request and asks for no proof, because that is privacy; it will not remove an accurate payment report on request, because that is a statutory public disclosure.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Honorhealth Deer Valley Medical Center Hospital · Phoenix, AZ
  • Honorhealth Sonoran Crossing Medical Center Hospital · Phoenix, AZ

Colleagues at Valley Anesthesiology Consultants Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 284 clinicians in the practice; 12 are shown here.

Other providers in Phoenix