PROVIDER PROFILE · NPI 1912007220

John OholleranMD

PRACTICEWILLAMETTE FALLS HOSPITALSee all providers at this practice →

General SurgeryOregon City, ORI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

Unique beneficiaries

—

Total services

Distinct HCPCS

Medicare payment

$4K

Peer benchmark

Total Medicare services vs. 323 General Surgery providers in OR — below median (cohort median 186).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$109

Distinct drugs

Brand share

100.0%

Top prescribed drugs

Hydrocodone/Acetaminophen19 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 John Oholleran'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). 9 inbound referrers · 0 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
OHOLLERAN, MICHAEL	36	108
BURKE, VINCENT	29	73
WHEAT, RICHARD	23	62
George Oldham Emergency Medicine · Redwood City, CA	18	44
Daniel Libke Emergency Medicine · Piedmont, CA	15	34
Scott Sherr Internal Medicine · Wheat Ridge, CO	14	75
Kathryn Hawrylyshyn Anesthesiology · Palo Alto, CA	13	15
Duc Nguyen Orthopedic Surgery · Redwood City, CA	12	44
Carl Tjerandsen Physician Assistant · Redding, CA	11	16

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