Allyson Markussen, LPC
NPI 1508511056 · Mental Health Counselor · Fairfax, VA
Allyson Markussen, LPC is a Mental Health Counselor provider in Fairfax, VA (NPI 1508511056).
Provider details
- NPI number
- 1508511056
- Entity type
- Individual
- Primary specialty
- Mental Health CounselorBehavioral Health & Social Service Providers
- Credential
- LPC
- Sex
- Female
- Sole proprietor
- Yes
- License
- 0704014608 (VA)
Specialties & taxonomies
Behavioral Health & Social Service Providers
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
4 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
- 2022-02-14
- Last updated
- 2024-05-26
- Certified
- 2024-05-26
Frequently asked questions
- What is Allyson Markussen's NPI number?
- Allyson Markussen's National Provider Identifier (NPI) is 1508511056, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Allyson Markussen's specialty?
- Allyson Markussen is listed in the NPPES registry with a primary specialty of Mental Health Counselor (Behavioral Health & Social Service Providers).
- Where is Allyson Markussen located?
- Allyson Markussen's practice location on file with NPPES is 3925 Blenheim Blvd Ste 52a, Fairfax, VA 22030-2426.
- What is Allyson Markussen's phone number?
- The practice phone number listed in the NPPES registry for Allyson Markussen is (703) 606-5971.
- Is Allyson Markussen's NPI active?
- Yes — Allyson Markussen's NPI (1508511056) is active in the NPPES registry as of the last update on 2024-05-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.