Matthew Ryan Riley, MD - Medicare Pediatrics in Portland, OR

Matthew Ryan Riley, MD is a medicare enrolled "Pediatrics - Pediatric Gastroenterology" physician in Portland, Oregon. His current practice location is 300 N Graham St, Suite 420, Portland, Oregon. You can reach out to his office (for appointments etc.) via phone at (503) 281-5139.

Matthew Ryan Riley is licensed to practice in Oregon (license number MD23166) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1164486759.

Contact Information

Matthew Ryan Riley, MD
300 N Graham St, Suite 420,
Portland, OR 97227-1683
(503) 281-5139
(503) 249-3782

Map and Direction




Physician's Profile

Full NameMatthew Ryan Riley
GenderMale
SpecialityPediatrics - Pediatric Gastroenterology
Location300 N Graham St, Portland, Oregon
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1164486759
  • Provider Enumeration Date: 04/12/2006
  • Last Update Date: 11/05/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 7810277266
  • Enrollment ID: I20161201000963

Medical Identifiers

Medical identifiers for Matthew Ryan Riley such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1164486759NPI-NPPES
269833MedicaidOR
8433450MedicaidWA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2080P0206XPediatrics - Pediatric Gastroenterology MD23166 (Oregon)Primary

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. Matthew Ryan Riley allows following entities to bill medicare on his behalf.
Entity NameProvidence Health & Services Oregon
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023488343
PECOS PAC ID: 0648183608
Enrollment ID: O20031106000652
Entity NameProvidence Health & Services Oregon
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1114015971
PECOS PAC ID: 9335057447
Enrollment ID: O20031117000153

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. Matthew Ryan Riley 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
Matthew Ryan Riley, MD
300 N Graham St, Suite 420,
Portland, OR 97227-1683

Ph: (503) 281-5139
Matthew Ryan Riley, MD
300 N Graham St, Suite 420,
Portland, OR 97227-1683

Ph: (503) 281-5139

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).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.