DENNIS CHANG D.O.
NPI 1912360918
Internal Medicine in Glendale, CA
About Dennis Chang D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DENNIS CHANG D.O. (NPI 1912360918) is an individual internal medicine provider in Glendale, California, licensed in California (17165) and active in the NPI registry since March 2016. He is enrolled in Medicare PECOS and is a graduate of Other (2016).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
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
Dennis Chang D.o. 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
3Medicare enrollment records show Dennis Chang reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Glendale, CA 91204
- Reassigned Medicare billing, California enrollment
- 49 clinicians in this Medicare group
Glendale, CA 91204
- Reassigned Medicare billing, California enrollment
- 61 clinicians in this Medicare group
Los Angeles, CA 90027
- Reassigned Medicare billing, California enrollment
- 43 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 6
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 91204 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 3
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.
GLENDALE, CA 91204
GLENDALE, CA 91204
GLENDALE, CA 91204
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 Dennis Chang's NPI number?
The NPI number for Dennis Chang is 1912360918. It was assigned to this individual provider in the NPPES registry on March 29, 2016.
Where is Dennis Chang located?
Dennis Chang practices at 1420 S Central Ave, Glendale, CA 91204. The listed phone number is (424) 465-2719.
What is Dennis Chang's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Dennis Chang enrolled in Medicare?
Yes. Dennis 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 Dennis Chang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dennis Chang reassigns Medicare benefits to 3 organizations: Cedar Springs Hospitalist Medical Group, Inc. (Glendale, CA), Willow Brook Critical Care Medical Group, Inc (Glendale, CA) and Sycamore Hill Hospitalist Medical Group Inc (Los Angeles, 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 Dennis Chang's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Dennis Chang accept?
Health plans from Anthem Blue Cross and Blue Shield list Dennis Chang as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Dennis Chang was last updated on March 4, 2022. 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.
# Dennis Chang, D.O. · NPI 1912360918
Internal Medicine physician in Glendale, California. Individual provider, active in the CMS NPPES registry since March 29, 2016.
## Identity
- **NPI:** 1912360918 (Entity type: Individual)
- **Enumerated:** March 29, 2016
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 17165 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1420 S CENTRAL AVE, Glendale, CA 91204-2508
- **Phone:** (424) 465-2719
## 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:** 3 organizations under Medicare reassignment (form CMS-855R): Cedar Springs Hospitalist Medical Group, Inc. (NPI 1245799279, Glendale, CA); Willow Brook Critical Care Medical Group, Inc (NPI 1811520224, Glendale, CA); Sycamore Hill Hospitalist Medical Group Inc (NPI 1588139836, Los Angeles, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** March 4, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1912360918) · Data from the CMS NPPES public registry.