Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Annamaria Griffith, DNP, FNP-C

Family Nurse Practitioner in O Fallon, IL · enumerated 2021.

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

National Provider Identifier

1023786456

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Registry record

Entity type Individual (Type 1)

Name Annamaria Griffith

Credential DNP, FNP-C

Sex Female

Practice address 1405 N Green Mount Rd Ste 240, O Fallon, IL, 62269

Phone (618) 632-9000

Enumeration date Aug 31, 2021

Last updated in NPPES Aug 31, 2021

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 2021031070 (MO) Secondary

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 209023756 (IL) Primary

DNP · Doctor of Nursing Practice: A clinical doctorate for advanced practice nurses. About the DNP 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Annamaria Griffith?

The National Provider Identifier (NPI) for Annamaria Griffith is 1023786456, a Type 1 (individual) record in the CMS NPPES registry.

Where does Annamaria Griffith practice?

The practice location on file with NPPES is in O Fallon, IL. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Morgan Takacs Family Nurse Practitioner · O Fallon, IL NPI 1225982739

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-08-31.