ALLISON N SMITH MSN, PMHNP-BC
NPI 1821805011
Nurse Practitioner - Psychiatric/Mental Health in O Fallon, IL
About Allison N Smith Msn, Pmhnp-bc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ALLISON N SMITH MSN, PMHNP-BC (NPI 1821805011) is an individual psychiatric/mental health provider in O Fallon, Illinois, licensed in Illinois (209031884) and active in the NPI registry since December 2024. She is enrolled in Medicare PECOS and is a graduate of Other (2024).
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Allison N Smith Msn, Pmhnp-bc is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 62269 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 3
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Allison Smith's NPI number?
The NPI number for Allison Smith is 1821805011. It was assigned to this individual provider in the NPPES registry on December 12, 2024.
Where is Allison Smith located?
Allison Smith practices at 791 Wall St, O Fallon, IL 62269. The listed phone number is (283) 223-7997.
What is Allison Smith's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Allison Smith enrolled in Medicare?
Yes. Allison Smith is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
What insurance does Allison Smith accept?
Health plans from Medica and Oscar Insurance Company list Allison Smith as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Allison Smith was last updated on May 12, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Allison N Smith, MSN, PMHNP-BC · NPI 1821805011
Psychiatric/Mental Health physician in O Fallon, Illinois. Individual provider, active in the CMS NPPES registry since December 12, 2024.
## Identity
- **NPI:** 1821805011 (Entity type: Individual)
- **Enumerated:** December 12, 2024
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** 209031884 (Illinois)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 791 WALL ST, O Fallon, IL 62269-2087
- **Phone:** (283) 223-7997
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** Other, class of 2024
## Record status
- **NPPES last updated:** May 12, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1821805011) · Data from the CMS NPPES public registry.