Christopher Walter Ryan, MD - Medicare Medical Oncology in Portland, OR

Christopher Walter Ryan, MD is a medicare enrolled "Internal Medicine - Medical Oncology" physician in Portland, Oregon. He went to State University Of Ny Upstate Medical University and graduated in 1994 and has 30 years of diverse experience with area of expertise as Medical Oncology. He is a member of the group practice Oregon Health And Sciences University/university Medical Group and his current practice location is 3303 Sw Bond Ave, 7th Floor, Portland, Oregon. You can reach out to his office (for appointments etc.) via phone at (503) 494-6594.

Christopher Walter Ryan is licensed to practice in Oregon (license number MD24250) 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 1033127584.

Contact Information

Christopher Walter Ryan, MD
3303 Sw Bond Ave, 7th Floor,
Portland, OR 97239-4501
(503) 494-6594
Not Available

Map and Direction




Physician's Profile

Full NameChristopher Walter Ryan
GenderMale
SpecialityMedical Oncology
Experience30 Years
Location3303 Sw Bond Ave, Portland, Oregon
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Christopher Walter Ryan attended and graduated from State University Of Ny Upstate Medical University in 1994
  NPI Data:
  • NPI Number: 1033127584
  • Provider Enumeration Date: 08/03/2006
  • Last Update Date: 09/18/2017
  Medicare PECOS Information:
  • PECOS PAC ID: 1052472545
  • Enrollment ID: I20081202000614

Medical Identifiers

Medical identifiers for Christopher Walter Ryan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1033127584NPI-NPPES
226796MedicaidOR

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RX0202XInternal Medicine - Medical Oncology MD24250 (Oregon)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ohsu Hospital And ClinicsPortland, ORHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Oregon Health And Sciences University/university Medical Group48807601071479

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. Christopher Walter Ryan allows following entities to bill medicare on his behalf.
Entity NameUniversity Professional Services
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376709535
PECOS PAC ID: 4880760107
Enrollment ID: O20080910000013

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. Christopher Walter Ryan 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 AddressPractice Location Address
Christopher Walter Ryan, MD
3181 Sw Sam Jackson Park Rd, Ch14r,
Portland, OR 97239-4501

Ph: (503) 494-6594
Christopher Walter Ryan, MD
3303 Sw Bond Ave, 7th Floor,
Portland, OR 97239-4501

Ph: (503) 494-6594

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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