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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Christina Madsen Fishback, LCSW

Social Worker in Alexandria, VA · enumerated 2018 · practices at Old Town Psychotherapy.

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

National Provider Identifier

1821576547

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Registry record

Entity type Individual (Type 1)
Name Christina Madsen Fishback
Credential LCSW
Sex Female
Practice address 218 N Lee St Ste 201, Alexandria, VA, 22314
Phone (831) 236-5801
Fax (703) 842-8135
Enumeration date Aug 3, 2018
Last updated in NPPES Jun 9, 2021

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers · License 0903002595 (VA) Primary
LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

Other identifiers

Identifier Type State Issuer
0903002595 Other VA COMMONWEALTH OF VIRGINIA DEPARTMENT OF HEALTH PROFESSIONS

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.

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Frequently asked questions

Is NPI 1821576547 active?
Yes, as of the latest NPPES snapshot, NPI 1821576547 is active (record last updated 2021-06-09).
How do I verify Christina Fishback's NPI record?
Cross-check NPI 1821576547 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-06-09.