KENNETH J CHANG MD
NPI 1518047604
Internal Medicine - Gastroenterology in Newport Beach, CA
About Kenneth J Chang Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KENNETH J CHANG MD (NPI 1518047604) is an individual gastroenterology provider in Newport Beach, California, licensed in California (000000G61843) and active in the NPI registry since October 2006. He is enrolled in Medicare PECOS and is a graduate of Warren Alpert Medical School Of Brown University (1985).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 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
Kenneth J Chang Md 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 Reassignments
2Medicare enrollment records show Kenneth J Chang reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Newport Beach, CA 92663
- Reassigned Medicare billing, California enrollment
- 529 clinicians in this Medicare group
Orange, CA 92868
- Reassigned Medicare billing, California enrollment
- 525 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.
Areas of Expertise CMS Part B claims 4
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 92663 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Kenneth J Chang's NPI number?
The NPI number for Kenneth J Chang is 1518047604. It was assigned to this individual provider in the NPPES registry on October 16, 2006.
Where is Kenneth J Chang located?
Kenneth J Chang practices at 500 Superior Ave Ste 240, Newport Beach, CA 92663. The listed phone number is (949) 764-8959.
What is Kenneth J Chang's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Kenneth J Chang enrolled in Medicare?
Yes. Kenneth J 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 organizations bill Medicare for Kenneth J Chang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kenneth J Chang reassigns Medicare benefits to 2 organizations: Hoag Clinic (Newport Beach, CA) and Uc Regents (Orange, CA). Each 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 Kenneth J Chang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
When was this NPI record last updated?
The NPPES record for Kenneth J Chang was last updated on May 7, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months 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.
# Kenneth J Chang, MD · NPI 1518047604
Gastroenterology physician in Newport Beach, California. Individual provider, active in the CMS NPPES registry since October 16, 2006.
## Identity
- **NPI:** 1518047604 (Entity type: Individual)
- **Enumerated:** October 16, 2006
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 000000G61843 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 500 SUPERIOR AVE STE 240, Newport Beach, CA 92663-3660
- **Phone:** (949) 764-8959
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Hoag Clinic (NPI 1942799523, Newport Beach, CA); Uc Regents (NPI 1003864174, Orange, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Warren Alpert Medical School Of Brown University, class of 1985
## Record status
- **NPPES last updated:** May 7, 2026
- **Other identifiers:** Other 100014901 (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1518047604) · Data from the CMS NPPES public registry.