Aiyin Chen, MD - Medicare Ophthalmology in Portland, OR

Aiyin Chen, MD is a medicare enrolled "Ophthalmology - Glaucoma Specialist" physician in Portland, Oregon. She went to University Of California, San Francisco School Of Medicine and graduated in 2008 and has 16 years of diverse experience with area of expertise as Ophthalmology. She is a member of the group practice Oregon Health And Sciences University/university Medical Group and her current practice location is 3303 Sw Bond Ave, Portland, Oregon. You can reach out to her office (for appointments etc.) via phone at (503) 494-3000.

Aiyin Chen is licensed to practice in Oregon (license number 182243) 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 1629305131.

Contact Information

Aiyin Chen, MD
3303 Sw Bond Ave,
Portland, OR 97239-4501
(503) 494-3000
(503) 418-0843

Map and Direction




Physician's Profile

Full NameAiyin Chen
GenderFemale
SpecialityOphthalmology
Experience16 Years
Location3303 Sw Bond Ave, Portland, Oregon
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Aiyin Chen attended and graduated from University Of California, San Francisco School Of Medicine in 2008
  NPI Data:
  • NPI Number: 1629305131
  • Provider Enumeration Date: 11/05/2009
  • Last Update Date: 07/21/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 2264697911
  • Enrollment ID: I20170804002678

Medical Identifiers

Medical identifiers for Aiyin Chen such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1629305131NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207W00000XOphthalmology 182243 (Oregon)Secondary
207WX0009XOphthalmology - Glaucoma Specialist 182243 (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. Aiyin Chen allows following entities to bill medicare on her 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. Aiyin Chen 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
Aiyin Chen, MD
3303 Sw Bond Ave,
Portland, OR 97239-4501

Ph: (503) 494-3000
Aiyin Chen, MD
3303 Sw Bond Ave,
Portland, OR 97239-4501

Ph: (503) 494-3000

Reviews and Comments


Ophthalmology Doctors in Portland, OR

Amy Ying Tong, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 1955 Nw Northrup St, Portland, OR 97209
Phone: 503-227-2020    
Sungjae Yang,
Ophthalmology
Medicare: Not Enrolled in Medicare
Practice Location: 3375 Sw Terwilliger Bld, Casey Eye Institue, Portland, OR 97239
Phone: 503-494-5023    
Dr. Michael David Straiko, M.D.
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 1040 Nw 22nd Ave Ste 200, Portland, OR 97210
Phone: 503-413-8202    Fax: 503-413-6937
Allison Rebecca Loh, M.D.
Ophthalmology
Medicare: Medicare Enrolled
Practice Location: 3375 Sw Terwilliger Blvd, Portland, OR 97239
Phone: 503-494-3000    Fax: 503-494-4286
John Carl Morrison, MD
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 3303 Sw Bond Ave, Portland, OR 97239
Phone: 503-494-3000    Fax: 503-418-0843
Adam Marcus Hanif,
Ophthalmology
Medicare: Medicare Enrolled
Practice Location: 3181 Sw Sam Jackson Park Rd, Portland, OR 97239
Phone: 503-494-3000    Fax: 503-494-4286
Mr. John Jah-hyun Koo, MD
Ophthalmology
Medicare: Accepting Medicare Assignments
Practice Location: 3600 N. Interstate Avenue, Department Of Opthalmology, Portland, OR 97227
Phone: 503-331-6330    Fax: 503-571-5877

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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