Janice Williams, FNP, DNP
NPI 1629019757 · Family Nurse Practitioner · Washington, DC
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Janice Williams, FNP, DNP is a Family Nurse Practitioner provider in Washington, DC (NPI 1629019757).
Provider details
- NPI number
- 1629019757
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- FNP, DNP
- Sex
- Female
- Sole proprietor
- No
- License
- R135421 (MD)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$18 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 21729 Great Mills Rd Ste CLexington Park, MD 20653-3815Phone: (301) 888-2233Fax: (301) 997-1489
Registry dates
- Enumerated
- 2006-06-09
- Last updated
- 2025-05-01
- Certified
- 2025-05-01
Frequently asked questions
- What is Janice Williams's NPI number?
- Janice Williams's National Provider Identifier (NPI) is 1629019757, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Janice Williams's specialty?
- Janice Williams is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Janice Williams located?
- Janice Williams's practice location on file with NPPES is 1900 Massachusetts Ave Se, Washington, DC 20003-2542.
- What is Janice Williams's phone number?
- The practice phone number listed in the NPPES registry for Janice Williams is (202) 548-6500.
- Does Janice Williams accept Medicare?
- Janice Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Janice Williams's NPI active?
- Yes — Janice Williams's NPI (1629019757) is active in the NPPES registry as of the last update on 2025-05-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.