Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Ms. Carolyn Jackson Sahni, PHD

Clinical Child & Adolescent Psychologist in Vienna, VA · enumerated 2007.

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

National Provider Identifier

1790994853

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Registry record

Entity type Individual (Type 1)

Name Ms. Carolyn Jackson Sahni

Credential PHD

Sex Female

Practice address Vienna, VA, 22180

Phone (703) 281-4850

Fax (703) 281-7832

Enumeration date May 22, 2007

Last updated in NPPES Nov 11, 2008

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers · License 0810001239 (VA) Primary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD credential

Other identifiers

Identifier	Type	State	Issuer
541462621	Medicaid	VA	-
56-2641681	Medicaid	VA	-

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

Is NPI 1790994853 active?

Yes, as of the latest NPPES snapshot, NPI 1790994853 is active (record last updated 2008-11-11).

How do I verify Carolyn Sahni's NPI record?

Cross-check NPI 1790994853 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-11-11.