Sonja Williams, LCMFT
NPI 1427297746 · Marriage & Family Therapist · Largo, MD
Sonja Williams, LCMFT is a Marriage & Family Therapist provider in Largo, MD (NPI 1427297746).
Provider details
- NPI number
- 1427297746
- Entity type
- Individual
- Primary specialty
- Marriage & Family TherapistBehavioral Health & Social Service Providers
- Credential
- LCMFT
- Sex
- Female
- Sole proprietor
- No
- License
- LCM151 (MD)
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
17 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)
- 1400 E West Hwy Apt 1000hSilver Spring, MD 20910-3260Phone: (301) 437-5311
Registry dates
- Enumerated
- 2009-02-10
- Last updated
- 2019-03-07
Frequently asked questions
- What is Sonja Williams's NPI number?
- Sonja Williams's National Provider Identifier (NPI) is 1427297746, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sonja Williams's specialty?
- Sonja Williams is listed in the NPPES registry with a primary specialty of Marriage & Family Therapist (Behavioral Health & Social Service Providers).
- Where is Sonja Williams located?
- Sonja Williams's practice location on file with NPPES is 9701 Apollo Dr, Largo, MD 20774-4783.
- What is Sonja Williams's phone number?
- The practice phone number listed in the NPPES registry for Sonja Williams is (301) 437-5311.
- Is Sonja Williams's NPI active?
- Yes — Sonja Williams's NPI (1427297746) is active in the NPPES registry as of the last update on 2019-03-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.