Bess Lam, BCBA

Bess Lam is a Behavior Analyst provider (Behavior Analyst) practicing in Chantilly, VA, registered in the NPPES registry with NPI 1467857938 since 2014.

✓ Active NPI ✓ Valid NPI checksum

NPI	1467857938
Entity type	Individual (Type 1)
Name	Bess Lam
Credential	BCBA
Sex	Female
Practice address	4312 HOLLOWSTONE CT, Chantilly, VA, 20151
Phone	7036223860
Enumeration date	2014-10-27
Last updated in NPPES	2014-10-27

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
103K00000X	Behavior Analyst	Primary	—	—

Copy-ready billing details

Provider: Bess Lam, BCBA
NPI: 1467857938
Taxonomy: 103K00000X (Behavior Analyst)
Address: 4312 HOLLOWSTONE CT, Chantilly, VA, 20151

Verify this record

Cross-check NPI 1467857938 against the authoritative CMS record: view Bess Lam on the official NPPES registry .

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. Read the full guide or validate an NPI number.

Frequently asked questions

What specialty is Bess Lam?

Bess Lam is registered in NPPES with the primary taxonomy of Behavior Analyst. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2014-10-27.