PROVIDER PROFILE · NPI 1407994429

Iris GibbsMD

Radiation OncologyPalo Alto, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$3K

Peer benchmark

Total Medicare services vs. 496 Radiation Oncology providers in CA — bottom quintile (cohort median 1,716).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

Final MIPS score

88.5

Quality

87.1

Cost

69.5

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

0.57%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Iris Gibbs's patients come from & go

Directional shared-patient flow from Medicare claims — who sends patients to this provider (inbound) and where this provider's patients go next (outbound). 2 inbound referrers · 2 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Zina Zarshenas Payman Diagnostic Radiology · Stanford, CA	20	47
Tarik Massoud Diagnostic Radiology · Stanford, CA	11	34

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
STANFORD HEALTH CARE	56	530
Steven Chang Neurosurgery · Stanford, CA	25	141

Source: CMS Physician Shared Patient Patterns (30-day window, Medicare FFS). Direction = a beneficiary seen by the first provider, then the second, within 30 days; a proxy for referral, not a documented referral. Pairs with fewer than 11 shared beneficiaries are suppressed.

CROSS-REFERENCE

Related data on other Healthparse brands

ProviderScore

OIG/SAM exclusion screening, sanctions history