CHRISTOPHER CHANG M.D.
NPI 1174941298
Internal Medicine - Critical Care Medicine in Portland, OR
About Christopher Chang M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHRISTOPHER CHANG M.D. (NPI 1174941298) is an individual critical care medicine provider in Portland, Oregon, licensed in Oregon (MD188733) and active in the NPI registry since April 2014. He is enrolled in Medicare PECOS, is affiliated with Good Samaritan Regional Medical Center, and maintains a secondary practice location in Corvallis.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Christopher Chang M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignment
Medicare enrollment records show Christopher Chang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Albany, OR 97321
- Reassigned Medicare billing, Oregon enrollment
- 522 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Good Samaritan Regional Medical Center
Acute Care Hospitals · Corvallis, ORPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 97239 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 2
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
PORTLAND, OR 97239
PORTLAND, OR 97239
PORTLAND, OR 97239
PORTLAND, OR 97239
PORTLAND, OR 97239
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Christopher Chang's NPI number?
The NPI number for Christopher Chang is 1174941298. It was assigned to this individual provider in the NPPES registry on April 4, 2014.
Where is Christopher Chang located?
Christopher Chang practices at 3710 SW Us Veterans Hospital Rd, Portland, OR 97239. The listed phone number is (503) 220-8262.
What is Christopher Chang's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Critical Care Medicine, with taxonomy code 207RC0200X.
Is Christopher Chang enrolled in Medicare?
Yes. Christopher Chang is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organization bills Medicare for Christopher Chang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christopher Chang reassigns Medicare benefits to Good Samaritan Hospital Corvallis (Albany, OR). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Christopher Chang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
Is Christopher Chang affiliated with any hospitals?
According to CMS data, Christopher Chang is affiliated with Good Samaritan Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Christopher Chang was last updated on September 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 45 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Christopher Chang, M.D. · NPI 1174941298
Critical Care Medicine physician in Portland, Oregon. Individual provider, active in the CMS NPPES registry since April 4, 2014.
## Identity
- **NPI:** 1174941298 (Entity type: Individual)
- **Enumerated:** April 4, 2014
- **Primary specialty:** Internal Medicine - Critical Care Medicine · taxonomy 207RC0200X
- **State license:** MD188733 (Oregon)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 3710 SW US VETERANS HOSPITAL RD, Portland, OR 97239-2964
- **Phone:** (503) 220-8262
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Good Samaritan Hospital Corvallis (NPI 1063779205, Albany, OR), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** September 12, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1174941298) · Data from the CMS NPPES public registry.