Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Marcia D. Tynon, L.D.
Registered Dietitian in Grove, OK · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821395666
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Registry record
Entity type Individual (Type 1)
Name Marcia D. Tynon
Credential L.D.
Sex Female
Practice address 1001 E 18th St, Grove, OK, 74344
Phone (918) 786-4461
Fax (918) 787-3645
Enumeration date Feb 14, 2011
Last updated in NPPES Feb 14, 2011
Taxonomy & licenses
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 Marcia Tynon?
The National Provider Identifier (NPI) for Marcia Tynon is 1821395666, a Type 1 (individual) record in the CMS NPPES registry.
Where does Marcia Tynon practice?
The practice location on file with NPPES is in Grove, OK. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Grand Lake Regional Cardiology Services LLC Interventional Cardiology Physician · Grove, OK NPI 1811996861 Grand Lake Imaging PC Diagnostic Radiology Physician · Grove, OK NPI 1184684011 Integris Grove Hospital General Acute Care Hospital · Grove, OK NPI 1467473579 Samuel Ratermann Family Medicine Physician · Grove, OK NPI 1831394071 Diagnostic Laboratory of Oklahoma LLC Clinical Medical Laboratory · Grove, OK NPI 1396928461 Kevin Yunt Diagnostic Radiology Physician · Grove, OK NPI 1982869806 Grove General Hospital Anesthesiology Physician · Grove, OK NPI 1467692145 Anesthesia Associates of Grand Lake Anesthesiology Physician · Grove, OK NPI 1841525193
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-02-14.