Are you Daniel Fassio, PsyD? This profile is yours to edit: update your address, phone, photo and services.

Edit this profile

Provider Profile

Daniel Fassio, PsyD

Is this you? Edit this profile

At a glance

About Dr. Fassio

Listed in the NPI registry as a psychologist — clinical, Daniel Fassio, PsyD practices in Mclean, VA. NPI 1043117955 identifies this record in the national registry.

Factual summary compiled by Guide.md from public records; not written by this provider.

Specialty

Credentials & Licensing

VA licenceAs reported to the NPI registry
No. 0810009569As reported
NPINational Provider Identifier
1043117955Issued 2026

As reported to the NPI registry ↗

Common questions

What is Daniel Fassio's specialty?

Daniel Fassio is a psychologist in Mclean, VA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychologist — Clinical”.

NPI registry

Where can I find Daniel Fassio?

Daniel Fassio is listed at 6845 Elm St Ste 507, Mclean, VA 22101. Addresses come from the NPI registry and can lag a move, so confirm before travelling.

NPI registry

How do I contact Daniel Fassio?

The number on file is (703) 215-4101. Contact the office directly to confirm availability and scheduling.

NPI registry

What is the NPI for Daniel Fassio?

Daniel Fassio's National Provider Identifier is 1043117955. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.

NPI registry

Is Daniel Fassio's profile verified?

Not yet. This profile is built from public federal data and has not been confirmed by Daniel Fassio. If this is you, claiming it is free.

Guide.md

Guide.md listings do not constitute medical advice or an endorsement.

A GigHz company · Founder: Pouyan Golshani, MD