DR. ANGELA AN-CHI CHANG M.D.
NPI 1730382318
Otolaryngology in La Jolla, CA
About Dr. Angela An-chi Chang M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ANGELA AN-CHI CHANG M.D. (NPI 1730382318) is an individual otolaryngology provider in La Jolla, California, licensed in California (A100380) and active in the NPI registry since June 2007. She is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (2005).
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 and accepts Medicare assignment
Dr. Angela An-chi 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 Reassignments
3Medicare enrollment records show Angela Chang reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
La Jolla, CA 92037
- Reassigned Medicare billing, California enrollment
San Diego, CA 92123
- Reassigned Medicare billing, California enrollment
- 1,437 clinicians in this Medicare group
Chula Vista, CA 91910
- Reassigned Medicare billing, California enrollment
- 5 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 11
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 92037 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.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims 4
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.
LA JOLLA, CA 92037
LA JOLLA, CA 92037
LA JOLLA, CA 92037
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 Angela Chang's NPI number?
The NPI number for Angela Chang is 1730382318. It was assigned to this individual provider in the NPPES registry on June 8, 2007.
Where is Angela Chang located?
Angela Chang practices at 9834 Genesee Ave Suite 111, La Jolla, CA 92037. The listed phone number is (858) 909-0770.
What is Angela Chang's specialty?
The primary specialty registered for this NPI is Otolaryngology with taxonomy code 207Y00000X.
Is Angela Chang enrolled in Medicare?
Yes. Angela 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 Angela Chang's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Angela Chang reassigns Medicare benefits to 3 organizations: Angela A Chang MD A Professional Corporation (La Jolla, CA), Emergency And Acute Care Medical Corporation (San Diego, CA) and Head And Neck Surgery Specialists, A Professional Corporation (Chula Vista, 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 Angela 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 Angela Chang was last updated on October 13, 2011. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 15 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. Angela An-Chi Chang, M.D. · NPI 1730382318
Otolaryngology physician in La Jolla, California. Individual provider, active in the CMS NPPES registry since June 8, 2007.
## Identity
- **NPI:** 1730382318 (Entity type: Individual)
- **Enumerated:** June 8, 2007
- **Primary specialty:** Otolaryngology · taxonomy 207Y00000X
- **State license:** A100380 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 9834 GENESEE AVE, SUITE 111, La Jolla, CA 92037-1223
- **Phone:** (858) 909-0770 · **Fax:** (858) 909-0880
## 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): Angela A Chang MD A Professional Corporation (NPI 1427682764, La Jolla, CA); Emergency And Acute Care Medical Corporation (NPI 1437103942, San Diego, CA); Head And Neck Surgery Specialists, A Professional Corporation (NPI 1124545074, Chula Vista, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Geffen School Of Medicine, class of 2005
## Record status
- **NPPES last updated:** October 13, 2011
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Source: [NPI Profile](https://npiprofile.com/npi/1730382318) · Data from the CMS NPPES public registry.