Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Darcy L Williams, O.D.
Optometrist in Harrisburg, PA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1932263738
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. Darcy L Williams
Credential O.D.
Sex Female
Practice address 4240 Elmerton Ave, Harrisburg, PA, 17109
Phone (717) 652-7710
Fax (717) 541-9842
Enumeration date Dec 19, 2006
Last updated in NPPES May 15, 2008
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD 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.
Frequently asked questions
What is the NPI number for Darcy Williams?
The National Provider Identifier (NPI) for Darcy Williams is 1932263738, a Type 1 (individual) record in the CMS NPPES registry.
Where does Darcy Williams practice?
The practice location on file with NPPES is in Harrisburg, PA. Providers can have multiple locations; NPPES lists the primary practice address.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-05-15.