Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Miss Martha Angelica Alamillo
Clinical Social Worker in Napa, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639200801
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Registry record
Entity type Individual (Type 1)
Name Miss Martha Angelica Alamillo
Sex Female
Practice address 2751 Napa Valley Corporate Dr Bldg A, Napa, CA, 94558
Phone (707) 259-8151
Enumeration date Mar 8, 2007
Last updated in NPPES Aug 18, 2021
Taxonomy & licenses
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 14471 (CA) Secondary
1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License 24465 (CA) Primary
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
Where does Martha Alamillo practice?
The practice location on file with NPPES is in Napa, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Martha Alamillo?
The National Provider Identifier (NPI) for Martha Alamillo is 1639200801, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Maria Ilano Psychiatry Physician · Napa, CA NPI 1083638100 Elizabeth Cottingham Child & Adolescent Psychiatry Physician · Napa, CA NPI 1881773406 Lorraine Ndusha Psychiatric/Mental Health Nurse Practitioner · Napa, CA NPI 1811068513 Noelle Souza-Pense Counselor · Napa, CA NPI 1962555078 Diane Buchanan Community Health Registered Nurse · Napa, CA NPI 1194842609 Luke Roundy Marriage & Family Therapist · Napa, CA NPI 1255595989 Mario Garcia Clinical Social Worker · Napa, CA NPI 1629226659 Eddie Flores Addiction (Substance Use Disorder) Counselor · Napa, CA NPI 1750523882
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-18.