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JOSEPH MERNAGH M.S.
NPI 1992421069
Counselor - Mental Health in Fairfax, VA

Active since October 19, 2022
2911 DEER HOLLOW WAY UNIT 424, FAIRFAX, VA 22031(330) 310-5290 Get Directions Write a Review

NPPES record last updated: February 2, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

Record update history: Feb 2, 2026, Oct 19, 2022 (2 updates tracked since 2022).

About Joseph Mernagh M.s. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

JOSEPH MERNAGH M.S. (NPI 1992421069) is an individual mental health provider in Fairfax, Virginia, licensed in Virginia (0704015348) and active in the NPI registry since October 2022.

NPPES Registry Identity

NPI1992421069
Entity TypeIndividualMale
Primary Taxonomy101YM0800X
Provider Legal NameJOSEPH MERNAGHCredential: M.S.
Location Address2911 DEER HOLLOW WAY UNIT 424Fairfax, VA 22031-6049
Mailing Address2911 Deer Hollow Way Unit 424Fairfax, VA 22031-6049 · (330) 310-5290
Phone(330) 310-5290
Sole ProprietorYes
Enumeration DateOctober 19, 2022
Last NPPES UpdateFebruary 2, 20262 updates tracked since enumeration
NPPES CertifiedFebruary 2, 2026
✔ NPI 1992421069 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License✔ Licensed in VA · 0704015348
2911 DEER HOLLOW WAY UNIT 424, Fairfax, VA 22031
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Group Practice 1

Group TaxonomyThis provider is a business group of one or more individual practitioners, who practice with different areas of specialization.193200000X MULTI-SPECIALTY GROUP

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Joseph Mernagh's NPI number?

The NPI number for Joseph Mernagh is 1992421069. It was assigned to this individual provider in the NPPES registry on October 19, 2022.

Where is Joseph Mernagh located?

Joseph Mernagh practices at 2911 Deer Hollow Way Unit 424, Fairfax, VA 22031. The listed phone number is (330) 310-5290.

What is Joseph Mernagh's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Joseph Mernagh was last updated on February 2, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.