IndividualActive
Barbara Williamson, M.D.
NPI 1972596690 · Dermatology Physician · Largo, MD
Provider details
- NPI number
- 1972596690
- Entity type
- Individual
- Primary specialty
- Dermatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- License
- D0031566 (MD)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 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
1400 Mercantile Ln
Ste#110
Largo, MD 20774-5341
Phone: (301) 772-9775
Fax: (301) 772-8395
Street-level locationGet directions
Mailing address
Po Box 493
Greenbelt, MD 20768-0493
Registry dates
- Enumerated
- 2005-08-28
- Last updated
- 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.