Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marissa Hatsue Wong
Social Worker in Sherman Oaks, CA · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1649994138
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Registry record
Entity type Individual (Type 1)
Name Marissa Hatsue Wong
Sex Female
Practice address 13400 Riverside Dr Ste 310, Sherman Oaks, CA, 91423
Phone (818) 245-5352
Enumeration date Sep 28, 2022
Last updated in NPPES Sep 28, 2022
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 Marissa Wong?
The National Provider Identifier (NPI) for Marissa Wong is 1649994138, a Type 1 (individual) record in the CMS NPPES registry.
Where does Marissa Wong practice?
The practice location on file with NPPES is in Sherman Oaks, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Cassandra Carter Marriage & Family Therapist · Sherman Oaks, CA NPI 1164999322 Adriana Arizon Clinical Social Worker · Sherman Oaks, CA NPI 1447880802 Alexis Smith Mental Health Counselor · Sherman Oaks, CA NPI 1154091593 Candace Whang Clinical Social Worker · Sherman Oaks, CA NPI 1699413476 Jhamasa Lewis Clinical Social Worker · Sherman Oaks, CA NPI 1003593021
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-09-28.