Peggy Brennan, APRN, CNS
NPI 1851451561 · Mental Health Counselor · Fairfax, VA
Peggy Brennan, APRN, CNS is a Mental Health Counselor provider in Fairfax, VA (NPI 1851451561).
Provider details
- NPI number
- 1851451561
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- APRN, CNS
- Sex
- Female
- Sole proprietor
- Yes
- License
- 0015000452 (VA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 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
Registry dates
- Enumerated
- 2006-12-11
- Last updated
- 2007-07-08
Frequently asked questions
- What is Peggy Brennan's NPI number?
- Peggy Brennan's National Provider Identifier (NPI) is 1851451561, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Peggy Brennan's specialty?
- Peggy Brennan is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Peggy Brennan located?
- Peggy Brennan's practice location on file with NPPES is 10520 Warwick Ave, Fairfax, VA 22030-3100.
- What is Peggy Brennan's phone number?
- The practice phone number listed in the NPPES registry for Peggy Brennan is (703) 385-9665.
- Is Peggy Brennan's NPI active?
- Yes — Peggy Brennan's NPI (1851451561) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.