What is Gregory Willis's specialty?

Gregory Willis (NPI 1417941600) is a Medicare-billing provider whose primary specialty is Radiation Oncology in Tualatin, OR.

Where does Gregory Willis practice?

Gregory Willis practices in Tualatin, OR, based on the location reported in the CMS Medicare provider datasets for NPI 1417941600.

How much does Medicare pay Gregory Willis?

Gregory Willis (NPI 1417941600) received approximately $50K in total Medicare Part B payments, serving 139 beneficiaries, per the CMS Medicare Physician & Other Practitioners dataset.

PROVIDER PROFILE · NPI 1417941600

Gregory WillisM.D.

PRACTICEMERIDIAN PARK ONCOLOGY LLCSee all providers at this practice →

Radiation OncologyTualatin, ORI

MEDICARE UTILIZATION · PART B · 2024

Total beneficiaries

255

Unique beneficiaries

—

Total services

666

Distinct HCPCS

Medicare payment

$41K

Peer benchmark

Total Medicare services vs. 81 Radiation Oncology providers in OR — below median (cohort median 1,033).

PRESCRIBING · PART D · 2024

Total Rx claims

Beneficiaries

—

Total drug cost

$113

Distinct drugs

Brand share

0.0%

Top prescribed drugs

Tamsulosin Hcl14 claims

QUALITY · MIPS · 2024

Final MIPS score

100.0

Quality

5.7

Cost

71.9

Improvement activities

40.0

Promoting interop.

100.0

Payment adjustment

1.05%

Group

INDUSTRY PAYMENTS · OPEN PAYMENTS · 2024

No data available for this provider in 2024.

REFERRAL NETWORK

Where Gregory Willis'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). 3 inbound referrers · 6 outbound destinations.

Receives referrals from

Inbound — who sends patients here

Physician	Patients	Visits
LEGACY MERIDIAN PARK HOSPITAL	38	312
DERBES, ALISON	13	107
Edward Chang Hematology-Oncology · Tigard, OR	12	417

Refers patients to

Outbound — where patients go next

Physician	Patients	Visits
Norman Willis Radiation Oncology · Lewiston, ID	39	1,075
LEGACY MERIDIAN PARK HOSPITAL	34	203
FIELDER, KATHLEEN	18	158
Edward Chang Hematology-Oncology · Tigard, OR	15	371
Ian Schnadig Hematology-Oncology · Tualatin, OR	15	230
OREGON HEALTH & SCIENCE UNIVERSITY	12	283

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