PROVIDER PROFILE · NPI 1861489130

William Portner

PRACTICEMAINEHEALTHSee all providers at this practice →

Diagnostic RadiologyNorway, MEI

MEDICARE UTILIZATION · PART B · 2024

No data available for this provider in 2024.

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 William Portner'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). 66 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
MAINEHEALTH	1,510	5,921
KIELISZEK, FRANCIS	184	782
David Kumaki Internal Medicine · Norway, ME	164	471
MAINEHEALTH	150	273
Peter Harbage Internal Medicine · Norway, ME	142	409
Brian Nolan Internal Medicine · Norway, ME	134	438
Albert Sledge Emergency Medicine · Portland, ME	115	206
James Eshleman Family Practice · Calais, ME	115	456
Matthew Kerr Emergency Medicine · Norway, ME	114	195
Tobin Piker Emergency Medicine · Norway, ME	112	190
Thomas Hewson Emergency Medicine · Norway, ME	96	161
DECAROLIS, RICHARD	79	214

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