Annamaria Griffith, DNP, FNP-C
NPI 1023786456 · Family Nurse Practitioner · O Fallon, IL
Enrolled with Medicare as Order and Referring Only - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Annamaria Griffith, DNP, FNP-C is a Family Nurse Practitioner provider in O Fallon, IL (NPI 1023786456).
Provider details
- NPI number
- 1023786456
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- DNP, FNP-C
- Sex
- Female
- Sole proprietor
- No
- License
- 2021031070 (MO)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
4 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Additional practice locations (1)
- 1036 Town and Country Crossing DrTown and Country, MO 63017-0610Phone: (314) 833-9000
Registry dates
- Enumerated
- 2021-08-31
- Last updated
- 2021-08-31
- Certified
- 2021-08-31
Frequently asked questions
- What is Annamaria Griffith's NPI number?
- Annamaria Griffith's National Provider Identifier (NPI) is 1023786456, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Annamaria Griffith's specialty?
- Annamaria Griffith is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Annamaria Griffith located?
- Annamaria Griffith's practice location on file with NPPES is 1405 N Green Mount Rd Ste 240, O Fallon, IL 62269-3494.
- What is Annamaria Griffith's phone number?
- The practice phone number listed in the NPPES registry for Annamaria Griffith is (618) 632-9000.
- Does Annamaria Griffith accept Medicare?
- Annamaria Griffith is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Annamaria Griffith's NPI active?
- Yes — Annamaria Griffith's NPI (1023786456) is active in the NPPES registry as of the last update on 2021-08-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.