Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Miss Cassidie Loren Day, MS, RD, LD
Registered Dietitian in Norman, OK · enumerated 2014.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1154739936
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Registry record
Entity type Individual (Type 1)
Name Miss Cassidie Loren Day
Credential MS, RD, LD
Sex Female
Practice address 901 N Porter Ave, Norman, OK, 73071
Phone (405) 307-2173
Enumeration date Jul 24, 2014
Last updated in NPPES Jul 24, 2014
Taxonomy & licenses
RD · Registered Dietitian: A nutrition professional credentialed by the Commission on Dietetic Registration.
About the RD 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 Cassidie Day?
The National Provider Identifier (NPI) for Cassidie Day is 1154739936, a Type 1 (individual) record in the CMS NPPES registry.
Where does Cassidie Day 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 → John Pirtle Pulmonary Disease Physician · Norman, OK NPI 1639161508 Norstar Emergency Physicians Emergency Medical Services (Emergency Medicine) Physician · Norman, OK NPI 1093709537 Matthew Bonner Emergency Medicine Physician · Norman, OK NPI 1780679837 Chad Borin Emergency Medicine Physician · Norman, OK NPI 1770578825 Dale Askins Emergency Medical Services (Emergency Medicine) Physician · Norman, OK NPI 1649265786 Glen Bailey Emergency Medical Services (Emergency Medicine) Physician · Norman, OK NPI 1194710897 Douglas Coffman Emergency Medical Services (Emergency Medicine) Physician · Norman, OK NPI 1770579336 Vincent Gonzalez Emergency Medicine Physician · Norman, OK NPI 1952397481
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-07-24.