DR. TIMOTHY TING-HAN CHANG M.D.
NPI 1265757819
Emergency Medicine in Panorama City, CA
About Dr. Timothy Ting-han Chang M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. TIMOTHY TING-HAN CHANG M.D. (NPI 1265757819) is an individual emergency medicine provider in Panorama City, California, licensed in California (A135705) and active in the NPI registry since April 2010. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Timothy Ting-han Chang M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Timothy Chang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Panorama City, CA 91402
- Reassigned Medicare billing, California enrollment
- 13,921 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
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 91402 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
PANORAMA CITY, CA 91402
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 Timothy Chang's NPI number?
The NPI number for Timothy Chang is 1265757819. It was assigned to this individual provider in the NPPES registry on April 6, 2010.
Where is Timothy Chang located?
Timothy Chang practices at 13652 Cantara St, Panorama City, CA 91402. The listed phone number is (818) 375-4231.
What is Timothy Chang's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Timothy Chang enrolled in Medicare?
Yes. Timothy Chang is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Timothy Chang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Timothy Chang reassigns Medicare benefits to Southern California Permanente Medical Group (Panorama City, CA). 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 Timothy 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 Timothy Chang was last updated on October 26, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.
# Dr. Timothy Ting-Han Chang, M.D. · NPI 1265757819
Emergency Medicine physician in Panorama City, California. Individual provider, active in the CMS NPPES registry since April 6, 2010.
## Identity
- **NPI:** 1265757819 (Entity type: Individual)
- **Enumerated:** April 6, 2010
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A135705 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 13652 CANTARA ST, Panorama City, CA 91402-5423
- **Phone:** (818) 375-4231
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Southern California Permanente Medical Group (NPI 1407888928, Panorama City, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 26, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1265757819) · Data from the CMS NPPES public registry.