Nestor Hermosillo
About this NPIWhat this record shows.
NPI 1619802550 is registered to Nestor Hermosillo, a Marriage & Family Therapist practising at 3281 E Guasti Rd Ste 600 in Ontario, California. Marriage & Family Therapist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy. Nestor Hermosillo has been enumerated in the National Provider Identifier (NPI) registry since 2026.
Your brand here.
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 Nestor Hermosillo accepts. To confirm in-network status with your specific health plan, contact Nestor Hermosillo directly at (909) 323-7100.
Frequently asked
Yes. NPI 1619802550 is registered as Active in the CMS NPPES public registry and passes the Luhn check-digit validation that all 10-digit NPIs use.
Marriage & Family Therapist is a recognised medical specialty under the National Uniform Claim Committee (NUCC) taxonomy.
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 (909) 323-7100.
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. Nestor Hermosillo is a Type-1 individual NPI.