Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Denise Gastelum Castellanos
Midwife in Fountain Valley, CA · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1356587042
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Registry record
Entity type Individual (Type 1)
Name Denise Gastelum Castellanos
Sex Female
Practice address 18035 Brookhurst Street, Suite 2100, Fountain Valley, CA, 92708
Phone (657) 241-9090
Enumeration date Dec 30, 2008
Last updated in NPPES Oct 19, 2016
Taxonomy & licenses
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Denise Castellanos?
The National Provider Identifier (NPI) for Denise Castellanos is 1356587042, a Type 1 (individual) record in the CMS NPPES registry.
Where does Denise Castellanos practice?
The practice location on file with NPPES is in Fountain Valley, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Patricia Evans Midwife · Fountain Valley, CA NPI 1760488126 Annette Mcconnaughey Midwife · Fountain Valley, CA NPI 1851398002 G. Thomas Ruiz Obstetrics & Gynecology Physician · Fountain Valley, CA NPI 1518967330 Lynn Hansen Midwife · Fountain Valley, CA NPI 1063597219 Stephanie Wyckoff Obstetrics Physician · Fountain Valley, CA NPI 1679659080 Gerardo Bustillo Obstetrics & Gynecology Physician · Fountain Valley, CA NPI 1972631786 Corry Varner Advanced Practice Midwife · Fountain Valley, CA NPI 1437347937
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-10-19.