Chun-Yang Chang MD
Also known as
- Professional nameChang, C-Y Michael
Source: NPPES public registry.
About this NPIWhat this record shows.
NPI 1033106034 is registered to Chun-Yang Chang MD, a Gastroenterology practising at 1508 Division St, Ste 15 in Oregon City, Oregon. Gastroenterology is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Chun-Yang Chang MD has been enumerated in the National Provider Identifier (NPI) registry since 2005.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Medicaid
- 1033106034WA
- 286972OR
Source: NPPES public registry.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Practitioner
- I20100820000313GastroenterologyOR
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Chun-Yang Chang MD accepts. To confirm in-network status with your specific health plan, contact Chun-Yang Chang MD directly at (503) 692-3750.
Frequently asked
Yes. NPI 1033106034 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Gastroenterology is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (503) 692-3750.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Chun-Yang Chang MD is a Type-1 individual NPI.