Karen Mazzara, MS, LPC
NPI 1972678274 · Professional Counselor · Leesburg, VA
Karen Mazzara, MS, LPC is a Professional Counselor provider in Leesburg, VA (NPI 1972678274).
Provider details
- NPI number
- 1972678274
- Entity type
- Individual
- Primary specialty
- Professional CounselorBehavioral Health & Social Service Providers
- Credential
- MS, LPC
- Sex
- Female
- Sole proprietor
- No
- License
- 0701003464 (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
2 documented practice locations
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
Additional practice locations (1)
- 8280 Willow Oaks Corporate Dr Ste 600Fairfax, VA 22031-4516Phone: (415) 424-4266Fax: (415) 520-6633
Registry dates
- Enumerated
- 2006-11-21
- Last updated
- 2025-03-17
- Certified
- 2025-03-17
Frequently asked questions
- What is Karen Mazzara's NPI number?
- Karen Mazzara's National Provider Identifier (NPI) is 1972678274, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Mazzara's specialty?
- Karen Mazzara is listed in the NPPES registry with a primary specialty of Professional Counselor (Behavioral Health & Social Service Providers).
- Where is Karen Mazzara located?
- Karen Mazzara's practice location on file with NPPES is 44084 Riverside Pkwy #240, Leesburg, VA 20176.
- What is Karen Mazzara's phone number?
- The practice phone number listed in the NPPES registry for Karen Mazzara is (703) 724-0200.
- Is Karen Mazzara's NPI active?
- Yes — Karen Mazzara's NPI (1972678274) is active in the NPPES registry as of the last update on 2025-03-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.