Chun-yang Michael Chang, MD - Medicare Gastroenterology in Oregon City, OR

Chun-yang Michael Chang, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Oregon City, Oregon. He went to Baylor College Of Medicine and graduated in 1996 and has 28 years of diverse experience with area of expertise as Gastroenterology. He is a member of the group practice Oregon Clinic Pc and his current practice location is 1508 Division St, Ste 15, Oregon City, Oregon. You can reach out to his office (for appointments etc.) via phone at (503) 692-3750.

Chun-yang Michael Chang is licensed to practice in Oregon (license number MD23576) 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 1033106034.

Contact Information

Chun-yang Michael Chang, MD
1508 Division St, Ste 15,
Oregon City, OR 97045-1582
(503) 692-3750
(503) 691-2324



Physician's Profile

Full NameChun-yang Michael Chang
GenderMale
SpecialityGastroenterology
Experience28 Years
Location1508 Division St, Oregon City, 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:
  • Chun-yang Michael Chang attended and graduated from Baylor College Of Medicine in 1996
  NPI Data:
  • NPI Number: 1033106034
  • Provider Enumeration Date: 10/04/2005
  • Last Update Date: 11/28/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 4183651359
  • Enrollment ID: I20100820000313

Medical Identifiers

Medical identifiers for Chun-yang Michael Chang such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1033106034NPI-NPPES
1033106034MedicaidWA
286972MedicaidOR

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0100XInternal Medicine - Gastroenterology MD23576 (Oregon)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Providence Willamette Falls Medical CenterOregon city, ORHospital
Legacy Meridian Park Medical CenterTualatin, ORHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Oregon Clinic Pc2860390408319

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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. Chun-yang Michael Chang allows following entities to bill medicare on his behalf.
Entity NameOregon Clinic Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1265417174
PECOS PAC ID: 2860390408
Enrollment ID: O20031222000096

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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. Chun-yang Michael Chang 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
Chun-yang Michael Chang, MD
541 Ne 20th Ave Ste 225,
Portland, OR 97232-2895

Ph: (503) 963-2801
Chun-yang Michael Chang, MD
1508 Division St, Ste 15,
Oregon City, OR 97045-1582

Ph: (503) 692-3750

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Internal Medicine Doctors in Oregon City, OR

Steven J Riley, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1510 Division St Ste 200, Oregon City, OR 97045
Phone: 503-962-1000    
Michael Frank Sheffield, MD
Gastroenterology
Medicare: Not Enrolled in Medicare
Practice Location: 1508 Division St, Ste 15, Oregon City, OR 97045
Phone: 503-692-3750    Fax: 503-691-2324
Monina Farrah Ramos Pascua, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1508 Division St, Ste 15, Oregon City, OR 97045
Phone: 503-692-3750    Fax: 503-691-2324
Gerald Acheson Dunlap, MD
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1510 Division St, Suite 200, Oregon City, OR 97045
Phone: 503-650-6880    Fax: 503-650-6888
William M Davies, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1510 Division St Ste 200, Oregon City, OR 97045
Phone: 503-962-1000    
Dr. Zibing Jiang Woodward, M.D.
Gastroenterology
Medicare: Accepting Medicare Assignments
Practice Location: 1508 Division St, Suite 15, Oregon City, OR 97045
Phone: 503-692-3750    Fax: 503-691-2324

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