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

Julie Annie Yee Billar, MD

Individual provider Surgical Oncology Physician · NPI 1619183274

Julie Annie Yee Billar, MD practises Surgical Oncology in Gilbert, Arizona. Graduated from University of Rochester School of Medicine and Dentistry in 2007, 19 years ago. Practices with Mayo Clinic Arizona, a 1,616-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Arizona.

Years since qualifying
19
Trained at
University of Rochester School of Medicine and Dentistry
Licensed in
AZ
In the registry since
2007
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

2946 E Banner Gateway Dr
Gilbert, AZ 85234-2165
Phone: (480) 256-6444
Fax: (480) 256-4607
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 13400 E Shea Blvd, Scottsdale, AZ 85259-5499 — (480) 301-8000

Specialties & licences

Surgery Physician (primary) Taxonomy 208600000X · Licence 40594 (AZ)
Surgical Oncology Physician Taxonomy 2086X0206X · Licence 40594 (AZ)

Record details

NPI number1619183274
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 14, 2007
Last updated in NPPESFebruary 9, 2023
Certification dateFebruary 9, 2023

Medicare enrollment

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

Medicare specialtySURGICAL ONCOLOGY
Medical schoolUNIVERSITY OF ROCHESTER SCHOOL OF MEDICINE AND DENTISTRY
Graduated 2007 (19 years in practice)
Group practice Mayo Clinic Arizona — 1616 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Mastectomy 95 times · 99th percentile

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients88
Services billed 237 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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician.

  • Mayo Clinic Hospital Hospital · Phoenix, AZ

Colleagues at Mayo Clinic Arizona

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 1616 clinicians in the practice; 12 are shown here.

Other providers in Gilbert