Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Hadley Hamilton Crosby, DDS
Dentist in Norman, OK · enumerated 2021.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639747330
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Registry record
Entity type Individual (Type 1)
Name Dr. Hadley Hamilton Crosby
Credential DDS
Sex Female
Practice address 709 W Main St, Norman, OK, 73069
Phone (405) 321-6506
Enumeration date Jun 17, 2021
Last updated in NPPES Nov 11, 2025
Taxonomy & licenses
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS 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 Hadley Crosby?
The National Provider Identifier (NPI) for Hadley Crosby is 1639747330, a Type 1 (individual) record in the CMS NPPES registry.
Where does Hadley Crosby practice?
The practice location on file with NPPES is in Norman, OK. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-11-11.