ATLANTIC BEHAVIORAL SPECIALISTS LLC
NPI 1396609889
Psychologist - Clinical in Fairfax, VA

Q: What is Atlantic Behavioral Specialists LLC's NPI number?

The NPI number for Atlantic Behavioral Specialists LLC is 1396609889. It was assigned to this organization in the NPPES registry on December 10, 2025.

Q: What is Atlantic Behavioral Specialists LLC's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Active since December 10, 2025

3610 W OX RD STE 1A, FAIRFAX, VA 22033(443) 818-2733 Get Directions Write a Review

NPPES record last updated: December 10, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Atlantic Behavioral Specialists Llc NPPES

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

ATLANTIC BEHAVIORAL SPECIALISTS LLC (NPI 1396609889) is a healthcare organization registered as a clinical in Fairfax, Virginia and active in the NPI registry since December 2025. The organization lists Charles Dadoo, President, as its authorized official.

NPPES Registry Identity

NPI1396609889

Entity TypeOrganization

Primary Taxonomy103TC0700X

Legal Business NameATLANTIC BEHAVIORAL SPECIALISTS LLC

Location Address3610 W OX RD STE 1AFairfax, VA 22033-2302

Mailing Address3610 W Ox Rd Ste 1aFairfax, VA 22033-2302 · (443) 818-2733

Phone(443) 818-2733

Organization SubpartNo

Authorized OfficialCharles DadooPresident · (443) 818-2733

Enumeration DateDecember 10, 2025

NPPES CertifiedDecember 10, 2025

✔ NPI 1396609889 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychologist · ClinicalBehavioral Health & Social Service Providers

Taxonomy Code103TC0700X

Definition

A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

3610 W OX RD STE 1A, Fairfax, VA 22033

Open in Google Maps ↗

Group Practice 1

Group TaxonomyThis provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.193400000X SINGLE SPECIALTY GROUP

Medicare Participation & PECOS CMS

Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Atlantic Behavioral Specialists Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Clinicians Billing Medicare Through This Organization

Medicare enrollment records show 1 clinician reassigns Medicare billing to Atlantic Behavioral Specialists LLC, which bills Medicare for the services this clinician delivers.

Clinician (1)

Sarah Nieburg, LCSW

Clinical Social Worker

NPI 1386452712

8401 MAYLAND DR STE 5544
Richmond, VA 23294

(804) 420-9595

✔ PECOS87 mi

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

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 Atlantic Behavioral Specialists LLC's NPI number?

The NPI number for Atlantic Behavioral Specialists LLC is 1396609889. It was assigned to this organization in the NPPES registry on December 10, 2025.

Where is Atlantic Behavioral Specialists LLC located?

Atlantic Behavioral Specialists LLC is located at 3610 W Ox Rd Ste 1A, Fairfax, VA 22033. The listed phone number is (443) 818-2733.

What is Atlantic Behavioral Specialists LLC's specialty?

The primary specialty registered for this NPI is Psychologist, specializing in Clinical, with taxonomy code 103TC0700X.

Is Atlantic Behavioral Specialists LLC enrolled in Medicare?

Yes. Atlantic Behavioral Specialists LLC is registered in the Medicare PECOS enrollment system.

How many clinicians bill Medicare through Atlantic Behavioral Specialists LLC?

According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Social Worker) reassigns their Medicare billing to Atlantic Behavioral Specialists LLC. A reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

When was this NPI record last updated?

The NPPES record for Atlantic Behavioral Specialists LLC was last updated on December 10, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.