2026 NPPES data Surgical Oncology Physician NPI 1619183274 M.D.
Verify on CMS →

JULIE BILLAR, M.D.

Surgical Oncology Physician in GILBERT, Arizona. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
13
Medicare Part D claims · Surgical Oncology Physician avg: 97
MIPS score
78.5864/100
▼ 5 pts below national avg 83.1 · [object Object]
What the federal data reveals: JULIE BILLAR, M.D. is a Surgical Oncology Physician ([object Object]) practicing in GILBERT, Arizona with a Medicare Part D prescribing footprint of 13 claims . Their CMS MIPS Final Score of 78.5864/100 (national average: 83.1) reflects performance across Quality, Cost, Interoperability, and Improvement Activities .

What stands out: JULIE BILLAR, M.D. reported a CMS MIPS final score of 78.5864 out of 100, below the 83.1 national average, and filed 13 Medicare Part D claims in 2023. Every figure on this page comes straight from federal CMS records, with no proprietary rating applied.

Board certification likely (heuristic — not verified)

JULIE BILLAR, M.D. practices in an ABMS-board-eligible specialty and shows active CMS Medicare participation + MIPS quality reporting + 1 hospital affiliation — signals consistent with board-certified status. For verified board certification, see CertificationMatters.org (the official ABMS public lookup).

JULIE BILLAR, M.D. at a glance

Near national average

NPI registry status

Active

Issued 05/14/2007

NPI 1619183274

Primary specialty

Surgical Oncology Physician

Niche

1,410 US NPIs in this specialty

Medicare Part D claims

13 87% vs specialty avg

2023 prescription claims

Specialty avg: 97

MIPS final score

78.5864/100 4.513599999999997% pts

Above neutral band

vs 83.1 national avg

Specialty distribution in Arizona

How Surgical Oncology Physician compares to other specialties among Arizona providers

Arizona providers

Surgical Oncology Physician share within Arizona

1. Surgical Oncology Physician42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Surgical Oncology Physician share within Arizona

Medicare quality performance — MIPS

JULIE BILLAR, M.D.'s 2023 MIPS final score plotted against the Surgical Oncology Physician national average

Near national average
MIPS Final Score
78.5864/100
vs 83.1 national avg · 2023 performance year

MIPS final score (Surgical Oncology Physician) — 78.5864/100 vs national avg 83.1

0%100%National avg83%78.6%
MIPS final score (Surgical Oncology Physician) — 78.5864/100 vs national avg 83.1

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

JULIE BILLAR, M.D. is a Surgical Oncology Physician provider practicing in GILBERT, Arizona, according to the CMS National Plan and Provider Enumeration System (NPPES). Credentials: M.D.. NPI: 1619183274. This profile includes practice location, specialty classification, and organizational affiliations from the CMS provider registry. Provider information is self-reported to CMS and updated monthly.

JULIE BILLAR, M.D. appears in the CMS NPPES registry as a Surgical Oncology Physician provider holding M.D. credentials at 2946 E BANNER GATEWAY DR, GILBERT, AZ, 85234, with a listed phone of (480) 256-6444. NPI 1619183274 was issued on 05/14/2007. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what BILLAR most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 13 prescription claims written by this provider, covering N/A Medicare beneficiaries and totaling roughly $150 in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy. On the CMS Merit-based Incentive Payment System, this provider earned a Final Score of 78.5864/100 for the 2023 performance year (Quality 69.056, Cost 59.5653), compared with the national average of 83.1.

Surgical Oncology Physician is a narrow specialty nationwide, with 1,410 enrolled providers across 50 states and an average of 97 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

2946 E BANNER GATEWAY DR
GILBERT, AZ 85234

Provider Details

NPI 1619183274
Specialty Surgical Oncology Physician
Credentials M.D.
Gender Female
NPI Issued 05/14/2007

CMS Quality Score (MIPS)

Merit-based Incentive Payment System (MIPS) scores from CMS, 2023 performance year.

78.5864
Final Score
Avg: 83.1
69.056
Quality
59.5653
Cost
100
Promoting Interoperability

Reporting: Group practice

Hospital and facility affiliations

Facilities where JULIE BILLAR, M.D. bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

MAYO CLINIC ARIZONA
SCOTTSDALE, AZ

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

13
Total Claims
$150
Total Drug Cost
N/A
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
13
Total Day Supply
170
Brand Drug Cost
$0
Generic Drug Cost
$150

Patient Demographics

Average Patient Age
77.8 years
Avg HCC Risk Score
1.36

Surgical Oncology Physician Overview

How JULIE BILLAR, M.D. fits within the Surgical Oncology Physician landscape nationally.

1,410
Surgical Oncology Physician Providers in US
50
States with Surgical Oncology Physician
97
Avg Claims per Provider

JULIE BILLAR, M.D.'s 13 claims are below the specialty average of 97.

Nearby Surgical Oncology Physician Providers in Arizona

Other clinicians with the same primary specialty enrolled in Arizona, drawn from the same CMS NPPES roster as BILLAR.

Compare Surgical Oncology Physician nationally: see state-by-state distribution →

Frequently Asked Questions

What is JULIE BILLAR, M.D.'s specialty?
JULIE BILLAR, M.D. specializes in Surgical Oncology Physician and practices in GILBERT, Arizona. Credentials: M.D..
How much does JULIE BILLAR, M.D. prescribe under Medicare Part D?
In 2023, JULIE BILLAR, M.D. wrote 13 Medicare Part D claims totaling $150 in drug costs for N/A beneficiaries.
What is JULIE BILLAR, M.D.'s Medicare quality score?
JULIE BILLAR, M.D. has a CMS MIPS Final Score of 78.5864/100 (Quality: 69.056, Cost: 59.5653). The national average MIPS Final Score is 83.1. Source: CMS Merit-based Incentive Payment System (MIPS) 2023.
Where is JULIE BILLAR, M.D. located?
JULIE BILLAR, M.D. is located at 2946 E BANNER GATEWAY DR, GILBERT, AZ, 85234. Phone: (480) 256-6444.
What is JULIE BILLAR, M.D.'s NPI number?
JULIE BILLAR, M.D.'s National Provider Identifier (NPI) is 1619183274, issued on 05/14/2007.
How many Surgical Oncology Physician providers are there in the US?
There are 1,410 Surgical Oncology Physician providers across 50 states in the US. The average Surgical Oncology Physician provider writes 97 Medicare Part D claims per year.
Does JULIE BILLAR, M.D. accept Medicare?
JULIE BILLAR, M.D. appears in CMS Medicare data with 13 Part D claims and N/A Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify JULIE BILLAR, M.D.'s credentials?
JULIE BILLAR, M.D.'s NPI is 1619183274 with credentials M.D.. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Quality Performance
CMS Merit-based Incentive Payment System (MIPS) — 2023 performance year.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology