James Williams MD
About this NPIWhat this record shows.
NPI 1831403120 is registered to James Williams MD, a Pediatrics practising at 1852 N Mastick Way in Nogales, Arizona. Pediatrics is the medical specialty focused on the health of infants, children, and adolescents through age 21. James Williams MD has been enumerated in the National Provider Identifier (NPI) registry since 2010.
Your brand here.
Secondary identifiers
Additional identifiers this provider has registered with NPPES. Used by medical billers, credentialers, and insurance verifiers to cross-reference claims and enrollments.
Medicaid
- 539080AZ
Source: NPPES public registry.
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.
Practitioner
- I20101124000100Pediatric MedicineAZ
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 James Williams MD accepts. To confirm in-network status with your specific health plan, contact James Williams MD directly at (520) 375-6007.
Frequently asked
Yes. NPI 1831403120 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Pediatrics is the medical specialty focused on the health of infants, children, and adolescents through age 21.
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 (520) 375-6007.
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. James Williams MD is a Type-1 individual NPI.