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

Seth Greenbaum

Individual provider Anesthesiology Physician · NPI 1073928271

Seth Greenbaum practises Anesthesiology in Phoenix, Arizona. Graduated from Tufts University School of Medicine in 2014, 12 years ago. Practices with Ias Arizona PLLC, a 127-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Arizona and Massachusetts.

Years since qualifying
12
Trained at
Tufts University School of Medicine
Licensed in
AZ, MA
In the registry since
2014
Specialties on file
3
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Practice location Address checks out

1850 N Central Ave Ste 1600
Phoenix, AZ 85004-4633
Phone: (602) 262-8900
Show map & directions

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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 75 Francis St, Boston, MA 02115-6110 — (617) 732-5500

Specialties & licences

Anesthesiology Physician (primary) Taxonomy 207L00000X · Licence 56079 (AZ)
Anesthesiology Physician Taxonomy 207L00000X · Licence 259721 (MA)
Internal Medicine Physician Taxonomy 207R00000X · Licence 259721 (MA)

Record details

NPI number1073928271
Entity typeIndividual (Type 1)
GenderMale
Sole proprietorYes
NPI enumeratedJune 25, 2014
Last updated in NPPESOctober 10, 2018

Medicare enrollment

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

Medicare specialtyANESTHESIOLOGY
Medical schoolTUFTS UNIVERSITY SCHOOL OF MEDICINE
Graduated 2014 (12 years in practice)
Group practice Ias Arizona Pllc — 127 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations3 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 patients176
Services billed 272 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

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 $26 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.

Colleagues at Ias Arizona PLLC

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 127 clinicians in the practice; 12 are shown here.

Other providers in Phoenix