PROVIDER PROFILE · NPI 1710108162

Winston ChamberlainMD, PHD

OphthalmologyPortland, ORI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

714

Unique beneficiaries

—

Total services

818

Distinct HCPCS

Medicare payment

$61K

Peer benchmark

Total Medicare services vs. 263 Ophthalmology providers in OR — below median (cohort median 1,671).

PRESCRIBING · PART D · 2024

Total Rx claims

1,021

Beneficiaries

—

Total drug cost

$144K

Distinct drugs

Brand share

22.3%

Top prescribed drugs

Prednisolone Acetate270 claims

Fluorometholone139 claims

Ofloxacin70 claims

Timolol Maleate54 claims

Cyclosporine50 claims

QUALITY · MIPS · 2024

Final MIPS score

99.1

Quality

84.3

Cost

0.0

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

1.01%

APM Entity

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

Total received

$5K

Payment records

By payment type

Consulting Fee$5K

Food and Beverage$116

REFERRAL NETWORK

Where Winston Chamberlain'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). 4 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
David Larsen Anesthesiology · Portland, OR	33	105
David Wilson Ophthalmology · Portland, OR	20	55
PROVIDENCE HEALTH & SERVICES OREGON	12	73
Derek Louie Optometry · Portland, OR	11	48

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