Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Thomas T Lam, MSW
Social Worker in San Diego, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639378144
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Registry record
Entity type Individual (Type 1)
Name Mr. Thomas T Lam
Credential MSW
Sex Male
Practice address 9444 Balboa Ave Ste 200, San Diego, CA, 92123
Phone (858) 514-3117
Enumeration date Jul 13, 2007
Last updated in NPPES Dec 21, 2021
Taxonomy & licenses
104100000X Social Worker Behavioral Health & Social Service Providers · License 6801097431 (MI) 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
What is the NPI number for Thomas Lam?
The National Provider Identifier (NPI) for Thomas Lam is 1639378144, a Type 1 (individual) record in the CMS NPPES registry.
Where does Thomas Lam practice?
The practice location on file with NPPES is in San Diego, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Claire Riley Marriage & Family Therapist · San Diego, CA NPI 1285063396 Abigail Aquino Registered Nurse · San Diego, CA NPI 1912568809 Taylor Withers Registered Nurse · San Diego, CA NPI 1952992562 Noor Iskander General Practice Registered Nurse · San Diego, CA NPI 1770307589 Kevin Nguy Registered Nurse · San Diego, CA NPI 1174339451
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-12-21.