Nicola Clarke Wallen LLC
NPI 1609490788 · Psychiatric/Mental Health Nurse Practitioner · Waldorf, MD
Enrolled with Medicare as Part B Supplier - Clinic/Group Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nicola Clarke Wallen LLC is a Psychiatric/Mental Health Nurse Practitioner organization in Waldorf, MD (NPI 1609490788).
Provider details
- NPI number
- 1609490788
- Entity type
- Organization
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Organization subpart
- No
- Authorized official
- Nicola Clarke Wallen, Psychiatric Mental Health Np/Owner(301) 960-8930
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Ambulatory Health Care Facilities
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
6 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Other names (DBA / former)
- Doing business as
- Atlas Behavioral Health Services
- Doing business as
- Atlas Behavioral Health Services
Registry dates
- Enumerated
- 2020-06-03
- Last updated
- 2020-08-27
- Certified
- 2020-08-27
Frequently asked questions
- What is Nicola Clarke Wallen LLC's NPI number?
- Nicola Clarke Wallen LLC's National Provider Identifier (NPI) is 1609490788, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Nicola Clarke Wallen LLC?
- Nicola Clarke Wallen LLC is classified in the NPPES registry as Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nicola Clarke Wallen LLC located?
- Nicola Clarke Wallen LLC's practice location on file with NPPES is 3261 Old Washington Rd Ste 2020, Waldorf, MD 20602-3231.
- What is Nicola Clarke Wallen LLC's phone number?
- The practice phone number listed in the NPPES registry for Nicola Clarke Wallen LLC is (301) 960-8930.
- Does Nicola Clarke Wallen LLC accept Medicare?
- Nicola Clarke Wallen LLC is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Who is the authorized official for Nicola Clarke Wallen LLC?
- The authorized official listed on Nicola Clarke Wallen LLC's NPPES record is Nicola Clarke Wallen, Psychiatric Mental Health Np/Owner. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Nicola Clarke Wallen LLC's NPI active?
- Yes — Nicola Clarke Wallen LLC's NPI (1609490788) is active in the NPPES registry as of the last update on 2020-08-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.