Dr Diane C Tsai, MD in Portland, OR - Medicare Radiation Oncology

Dr Diane C Tsai, MD is a medicare enrolled "Radiology - Radiation Oncology" physician in Portland, Oregon. She graduated from medical school in 1991 and has 35 years of diverse experience with area of expertise as Radiation Oncology. She is a member of the group practice Portland Adventist Medical Center, Kaiser Foundation Health Plan Of The Northwest, Bay Area Hospital District, Community Hospital Of The Monterey Peninsula, Peacehealth, Kaiser Foundation Health Plan Of The Northwest, Providence Health And Services - Washington and her current practice location is 3620 N Interstate Ave, Portland, Oregon. You can reach out to her office (for appointments etc.) via phone at (503) 813-2000.

Dr Diane C Tsai is licensed to practice in Oregon (license number MD174455) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1730266966.

Contact Information

	Dr Diane C Tsai, MD
	3620 N Interstate Ave, Portland, OR 97227-1106
	(503) 813-2000
	Not Available

Map and Direction

Physician's Profile

Full Name	Dr Diane C Tsai
Gender	Female
Speciality	Radiation Oncology
Experience	35 Years
Location	3620 N Interstate Ave, Portland, Oregon
Accepts Medicare Assignments	Yes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.

Medical Education and Training:

Dr Diane C Tsai graduated from medical school in 1991

NPI Data:

NPI Number: 1730266966
Provider Enumeration Date: 11/01/2006
Last Update Date: 12/09/2025

Medicare PECOS Information:

PECOS PAC ID: 7315843521
Enrollment ID: I20151002002628

Medical Identifiers

Medical identifiers for Dr Diane C Tsai such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1730266966	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
2085R0001X	Radiology - Radiation Oncology	MD174455 (Oregon)	Primary
2085R0001X	Radiology - Radiation Oncology	G86931 (California)	Secondary
2085R0001X	Radiology - Radiation Oncology	MD00037303 (Washington)	Secondary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
Community Hospital Of The Monterey Peninsula	Monterey, CA	Hospital
Bay Area Hospital	Coos bay, OR	Hospital
Columbia Memorial Hospital	Astoria, OR	Hospital
Providence St Mary Medical Center	Walla walla, WA	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Portland Adventist Medical Center	3274908819	270
Kaiser Foundation Health Plan Of The Northwest	5799688230	1824
Bay Area Hospital District	2163331000	130
Community Hospital Of The Monterey Peninsula	7214839125	141
Peacehealth	9537073960	291
Kaiser Foundation Health Plan Of The Northwest	5799688230	1824
Providence Health And Services - Washington	2860552973	275

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. Dr Diane C Tsai allows following entities to bill medicare on her behalf.

Entity Name	Portland Adventist Medical Center
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1215910302 PECOS PAC ID: 7012827876 Enrollment ID: O20040226000131

Entity Name	Bay Area Hospital District
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1225016561 PECOS PAC ID: 2163331000 Enrollment ID: O20040310000301

Entity Name	Oregon Urology Institute Pc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1801812078 PECOS PAC ID: 6608766399 Enrollment ID: O20040317000434

Entity Name	Portland Adventist Medical Center
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1750091021 PECOS PAC ID: 3274908819 Enrollment ID: O20230412001327

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. Dr Diane C Tsai 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
Dr Diane C Tsai, MD 500 Ne Multnomah St Ste 100, Portland, OR 97232-2031 Ph: (800) 813-2000	Dr Diane C Tsai, MD 3620 N Interstate Ave, Portland, OR 97227-1106 Ph: (503) 813-2000

Reviews and Comments

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Gregory Hall, MD Radiology Medicare: Accepting Medicare Assignments Practice Location: 3181 Sw Sam Jackson Park Rd, Portland, OR 97239 Phone: 503-418-0990 Fax: 503-494-4982
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Andrew Gary Helming, MD Radiology Medicare: May Accept Medicare Assignments Practice Location: 3181 Sw Sam Jackson Park Rd, Portland, OR 97239 Phone: 503-494-8311
Hans Guenter Wandel, MD Radiology Medicare: Not Enrolled in Medicare Practice Location: 3181 Sw Sam Jackson Park Rd, Portland, OR 97239 Phone: 503-418-0990
Steven Lloyd Primack, MD Radiology Medicare: Not Enrolled in Medicare Practice Location: 3181 Sw Sam Jackson Park Rd, Portland, OR 97239 Phone: 503-418-0990
Dr. James S Putnam, MD Radiology Medicare: Medicare Enrolled Practice Location: 9205 Sw Barnes Rd, Portland, OR 97225 Phone: 503-216-4830 Fax: 503-216-4850

Dr Diane C Tsai, MD - Medicare Radiation Oncology in Portland, OR