Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Kaltheen Marie Sisti, LGSW

Social Worker in Rockville, MD · enumerated 2018.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1588152771

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Registry record

Entity type Individual (Type 1)

Name Kaltheen Marie Sisti

Credential LGSW

Sex Female

Practice address 3202 Tower Oaks Blvd Ste 100, Rockville, MD, 20852

Phone (301) 468-1001

Fax (301) 468-1101

Enumeration date Apr 24, 2018

Last updated in NPPES Apr 24, 2018

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 21082 (MD) Primary

Other identifiers

Identifier	Type	State	Issuer
21082	Other	MD	LGSW GRADUATE

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 → Validate an NPI →

Frequently asked questions

Where does Kaltheen Sisti practice?

The practice location on file with NPPES is in Rockville, MD. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Kaltheen Sisti?

The National Provider Identifier (NPI) for Kaltheen Sisti is 1588152771, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-04-24.