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

Dr. Allison Drewno, PSY.D.

Clinical Psychologist in Washington, DC · enumerated 2022.

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

National Provider Identifier

1891430435

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Registry record

Entity type Individual (Type 1)

Name Dr. Allison Drewno

Credential PSY.D.

Sex Female

Practice address Washington, DC, 20005

Phone (202) 417-7261

Enumeration date Apr 28, 2022

Last updated in NPPES Apr 28, 2022

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

Taxonomy & licenses

103TP2701X Group Psychotherapy Psychologist Behavioral Health & Social Service Providers · License PSY1001371 (DC) Secondary

103TC0700X Clinical Psychologist Behavioral Health & Social Service Providers · License PSY1001371 (DC) Primary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD credential

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 Allison Drewno practice?

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

What is the NPI number for Allison Drewno?

The National Provider Identifier (NPI) for Allison Drewno is 1891430435, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-04-28.