PROVIDER PROFILE · NPI 1801999602

Hillis WarrenM.D.

OphthalmologySacramento, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

128

Unique beneficiaries

—

Total services

132

Distinct HCPCS

Medicare payment

$18K

Peer benchmark

Total Medicare services vs. 2,144 Ophthalmology providers in CA — bottom quintile (cohort median 1,859).

PRESCRIBING · PART D · 2024

No data available for this provider in 2024.

QUALITY · MIPS · 2024

No data available for this provider in 2024.

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Hillis Warren'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). 6 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
DIGNITY HEALTH	53	132
Robert Equi Ophthalmology · Sacramento, CA	45	85
LEWIS, RICHARD	14	18
Joel Pearlman Ophthalmology · Sacramento, CA	12	21
David Lehman Internal Medicine · Sacramento, CA	11	18
KWOK, MONICE	11	41

Refers patients to

Outbound — where patients go next

No outbound pairs above the suppression threshold.

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