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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Sarah Danielle Thomas Williams, OT

Occupational Therapist in Silver Spring, MD · enumerated 2009.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1649400540

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Registry record

Entity type Individual (Type 1)
Name Sarah Danielle Thomas Williams
Credential OT
Sex Female
Practice address Silver Spring, MD, 20903
Phone (301) 891-4883
Enumeration date Jul 27, 2009
Last updated in NPPES Apr 13, 2018

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

225X00000X Occupational Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License 06926 (MD) Primary
OT · Occupational Therapist: A licensed therapist helping patients develop or recover skills for daily living and working. About the OT credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What is the NPI number for Sarah Williams?
The National Provider Identifier (NPI) for Sarah Williams is 1649400540, a Type 1 (individual) record in the CMS NPPES registry.
Where does Sarah Williams practice?
The practice location on file with NPPES is in Silver Spring, MD. Providers can have multiple locations; NPPES lists the primary practice address.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-04-13.