Gregory S Willis, MD in Tualatin, OR - Medicare Radiation Oncology

Gregory S Willis, MD is a medicare enrolled "Radiology - Radiation Oncology" physician in Tualatin, Oregon. He went to Oregon Health Sciences University School Of Medicine and graduated in 1999 and has 26 years of diverse experience with area of expertise as Radiation Oncology. He is a member of the group practice Otero County Hospital Association and his current practice location is 6489 Sw Borland Rd, Tualatin, Oregon. You can reach out to his office (for appointments etc.) via phone at (503) 692-4843.

Gregory S Willis is licensed to practice in Oregon (license number MD28019) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1417941600.

Contact Information

	Gregory S Willis, MD
	6489 Sw Borland Rd, Tualatin, OR 97062-9798
	(503) 692-4843
	(503) 692-6543

Map and Direction

Physician's Profile

Full Name	Gregory S Willis
Gender	Male
Speciality	Radiation Oncology
Experience	26 Years
Location	6489 Sw Borland Rd, Tualatin, Oregon
Accepts Medicare Assignments	Yes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.

Medical Education and Training:

Gregory S Willis attended and graduated from Oregon Health Sciences University School Of Medicine in 1999

NPI Data:

NPI Number: 1417941600
Provider Enumeration Date: 09/02/2005
Last Update Date: 07/31/2025

Medicare PECOS Information:

PECOS PAC ID: 7012902315
Enrollment ID: I20160506000139

Medical Identifiers

Medical identifiers for Gregory S Willis such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1417941600	NPI	-	NPPES
140838	Other	OR	MEDICARE PTAN
033138015	Other	OR	REGENCE BCBS

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
2085R0001X	Radiology - Radiation Oncology	MD2016-0015 (New Mexico)	Secondary
2471R0002X	Radiologic Technologist - Radiation Therapy	MD28019 (Oregon)	Secondary
2085R0001X	Radiology - Radiation Oncology	MD28019 (Oregon)	Primary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
Gerald Champion Regional Medical Center	Alamogordo, NM	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Otero County Hospital Association	3173516606	178

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Gregory S Willis allows following entities to bill medicare on his behalf.

Entity Name	Phc-las Cruces Inc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1164445136 PECOS PAC ID: 4486635802 Enrollment ID: O20040624000297

Entity Name	Otero County Hospital Association
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1861450579 PECOS PAC ID: 3173516606 Enrollment ID: O20070212000377

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Gregory S Willis is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing Address	Practice Location Address
Gregory S Willis, MD 6489 Sw Borland Rd, Tualatin, OR 97062-9798 Ph: (503) 692-4843	Gregory S Willis, MD 6489 Sw Borland Rd, Tualatin, OR 97062-9798 Ph: (503) 692-4843

Reviews and Comments

Radiology Doctors in Tualatin, OR

Dr. Matthew Michael Treinen, DO Radiology Medicare: Accepting Medicare Assignments Practice Location: 19300 Sw 65th Ave, Tualatin, OR 97062 Phone: 503-692-1212 Fax: 503-692-5307
Dr. Marcus Paul Carr, M.D. Radiology Medicare: Accepting Medicare Assignments Practice Location: 19300 Sw 65th Ave, Tualatin, OR 97062 Phone: 503-692-1212
Brian Robert Mahon, MD Radiology Medicare: Accepting Medicare Assignments Practice Location: 19300 Sw 65th, Legacy Meridian Park Hospital, Tualatin, OR 97062 Phone: 503-692-5737 Fax: 503-692-5307
Joseph Marquardt, D.O. Radiology Medicare: Accepting Medicare Assignments Practice Location: 19300 Sw 65th Ave, Tualatin, OR 97062 Phone: 503-692-1212
David Wesley Nelson Jr., MD Radiology Medicare: Medicare Enrolled Practice Location: 19300 Sw 65th, Legacy Meridian Park Hospital, Tualatin, OR 97062 Phone: 503-692-5737 Fax: 503-692-5307
Timothy David Kadlecek, DO Radiology Medicare: May Accept Medicare Assignments Practice Location: 19300 Sw 65th, Legacy Meridian Park Hospital, Tualatin, OR 97062 Phone: 503-692-5737 Fax: 503-692-5307

Gregory S Willis, MD - Medicare Radiation Oncology in Tualatin, OR