PROVIDER PROFILE · NPI 1457451031

William ShafferO.D.

PRACTICESHAFFER VISION INC.See all providers at this practice →

OptometryOxnard, CAI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

307

Unique beneficiaries

—

Total services

317

Distinct HCPCS

Medicare payment

$12K

Peer benchmark

Total Medicare services vs. 2,493 Optometry providers in CA — above median (cohort median 147).

PRESCRIBING · PART D · 2024

Total Rx claims

120

Beneficiaries

—

Total drug cost

$27K

Distinct drugs

Brand share

50.0%

Top prescribed drugs

Bimatoprost60 claims

Latanoprost42 claims

Brimonidine Tartrate18 claims

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 William Shaffer'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 · 3 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
Unilab Corporation Clinical Laboratory · West Hills, CA	20	30
COMMUNITY MEMORIAL HEALTH SYSTEM	17	27

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
COMMUNITY MEMORIAL HEALTH SYSTEM	22	38
Unilab Corporation Clinical Laboratory · West Hills, CA	22	37
Yogender Garg Ophthalmology · Oxnard, CA	18	24

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