JOHN G. ANG MD
NPI 1326196114
General Practice in Diamond Bar, CA
About John G. Ang Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JOHN G. ANG MD (NPI 1326196114) is an individual general practice provider in Diamond Bar, California, licensed in California (A42727) and active in the NPI registry since January 2007. He has opted out of Medicare through July 1, 2028 and remains eligible to order and refer.
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Opted out of Medicare
John G. Ang Md has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from July 1, 2026 through July 1, 2028.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
DIAMOND BAR, CA 91765
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 John Ang's NPI number?
The NPI number for John Ang is 1326196114. It was assigned to this individual provider in the NPPES registry on January 8, 2007.
Where is John Ang located?
John Ang practices at 23525 Golden Springs Dr Suite A, Diamond Bar, CA 91765. The listed phone number is (909) 861-6828.
What is John Ang's specialty?
The primary specialty registered for this NPI is General Practice with taxonomy code 208D00000X.
Is John Ang enrolled in Medicare?
No. John Ang has opted out of Medicare through July 1, 2028. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out. The provider remains eligible to order and refer services for Medicare patients.
When was this NPI record last updated?
The NPPES record for John Ang was last updated on June 25, 2015. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# John G. Ang, MD · NPI 1326196114
General Practice physician in Diamond Bar, California. Individual provider, active in the CMS NPPES registry since January 8, 2007.
## Identity
- **NPI:** 1326196114 (Entity type: Individual)
- **Enumerated:** January 8, 2007
- **Primary specialty:** General Practice · taxonomy 208D00000X
- **State license:** A42727 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 23525 GOLDEN SPRINGS DR, SUITE A, Diamond Bar, CA 91765-2175
- **Phone:** (909) 861-6828
## Medicare
- **Medicare:** Opted out of Medicare (opt-out affidavit on file, in effect through July 1, 2028); services are provided under private contract
## Record status
- **NPPES last updated:** June 25, 2015
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Source: [NPI Profile](https://npiprofile.com/npi/1326196114) · Data from the CMS NPPES public registry.