ATLAS BEHAVIORAL HEALTH SERVICES
NPI 1609490788
Nurse Practitioner - Psychiatric/Mental Health in Waldorf, MD
About Atlas Behavioral Health Services NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ATLAS BEHAVIORAL HEALTH SERVICES (NPI 1609490788) is a healthcare organization registered as a psychiatric/mental health in Waldorf, Maryland and active in the NPI registry since June 2020. The organization lists Nicola Clarke Wallen, Psychiatric Mental Health Np/owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Atlas Behavioral Health Services 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 Atlas Behavioral Health Services, which bills Medicare for the services this clinician delivers.
Clinician (1)
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 Nicola Clarke Wallen LLC's NPI number?
The NPI number for Nicola Clarke Wallen LLC is 1609490788. It was assigned to this organization in the NPPES registry on June 3, 2020. The provider is doing business as Atlas Behavioral Health Services.
Where is Nicola Clarke Wallen LLC located?
Nicola Clarke Wallen LLC is located at 3261 Old Washington Rd Ste 2020, Waldorf, MD 20602. The listed phone number is (301) 960-8930.
What is Nicola Clarke Wallen LLC's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Nicola Clarke Wallen LLC enrolled in Medicare?
Yes. Nicola Clarke Wallen LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Nicola Clarke Wallen LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Nurse Practitioner) reassigns their Medicare billing to Nicola Clarke Wallen 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 Nicola Clarke Wallen LLC was last updated on August 27, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.
# Atlas Behavioral Health Services · NPI 1609490788
Psychiatric/Mental Health organization in Waldorf, Maryland. Organization record, active in the CMS NPPES registry since June 3, 2020.
## Identity
- **NPI:** 1609490788 (Entity type: Organization)
- **Enumerated:** June 3, 2020
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **Legal business name:** Nicola Clarke Wallen Llc
- **Organization subpart:** No
- **Authorized official:** Nicola Clarke Wallen, PSYCHIATRIC MENTAL HEALTH NP/OWNER
## Practice location
- **Address:** 3261 OLD WASHINGTON RD STE 2020, Waldorf, MD 20602-3231
- **Phone:** (301) 960-8930
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Nurse Practitioner) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 27, 2020
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Source: [NPI Profile](https://npiprofile.com/npi/1609490788) · Data from the CMS NPPES public registry.