Man C Duong MD A Professional Corporation
About this NPIWhat this record shows.
NPI 1134563976 is registered to Man C Duong MD A Professional Corporation, a healthcare organisation classified as "Internal Medicine" and located at 423 E 2nd St in Calexico, California. The organisation's authorised official is Man Duong. The organisation has been enumerated in the NPI registry since 2013.
Your brand here.
Medicare enrollment
This provider holds a Medicare enrollment on file with the Provider Enrollment, Chain and Ownership System (PECOS). Each enrollment carries a public Medicare Enrollment ID (ENRLMT_ID) used by billers and intermediaries.
Part B Supplier
- O20130524000179Clinic/Group PracticeCA
Source: CMS PECOS public enrollment file.
Insurance & acceptsHow to confirm coverage.
The National Plan and Provider Enumeration System (NPPES) registry does not include commercial insurance network data, so we cannot show which plans Man C Duong MD A Professional Corporation accepts. To confirm in-network status with your specific health plan, contact Man C Duong MD A Professional Corporation directly at (760) 890-5432.
Frequently asked
Yes. NPI 1134563976 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Internal Medicine physicians (internists) specialise in the prevention, diagnosis, and treatment of diseases in adults, often coordinating care across multiple subspecialties.
The CMS NPPES Public Registry at npiregistry.cms.hhs.gov is the authoritative source. FindMyNPI mirrors this dataset and refreshes monthly. For real-time verification, you can also call the provider's office at (760) 890-5432.
An individual healthcare provider has a single Type-1 NPI for life. Organisations can hold separate Type-2 NPIs per location, specialty, or sub-entity. Man C Duong MD A Professional Corporation is a Type-2 organisational NPI.