MRS. ALLISON TOLAR DARNELL APRN
NPI 1043045610
Nurse Practitioner - Psychiatric/Mental Health in Collierville, TN
About Mrs. Allison Tolar Darnell Aprn NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. ALLISON TOLAR DARNELL APRN (NPI 1043045610) is an individual psychiatric/mental health provider in Collierville, Tennessee, licensed in Tennessee (39154) and active in the NPI registry since September 2024. She is enrolled in Medicare PECOS, maintains a secondary practice location in Brentwood, and is a graduate of University Of Tennessee, Hsc, College Of Medicine (2025).
NPPES Registry Identity
Specialties & Licenses 3
Other Names 1
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Mrs. Allison Tolar Darnell Aprn 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.
Medicare Billing Reassignment
Medicare enrollment records show Allison Darnell reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Collierville, TN 38017
- Reassigned Medicare billing, Tennessee enrollment
- 6 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 38017 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.
COLLIERVILLE, TN 38017
COLLIERVILLE, TN 38017
COLLIERVILLE, TN 38017
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 Darnell's NPI number?
The NPI number for Allison Darnell is 1043045610. It was assigned to this individual provider in the NPPES registry on September 4, 2024. The provider is also known as Ms. Allison Marie Tolar Aprn.
Where is Allison Darnell located?
Allison Darnell practices at 1011 W Poplar Ave Ste 7, Collierville, TN 38017. The listed phone number is (901) 446-0226.
What is Allison Darnell's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Psychiatric/Mental Health, with taxonomy code 363LP0808X.
Is Allison Darnell enrolled in Medicare?
Yes. Allison Darnell 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.
Which organization bills Medicare for Allison Darnell's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Allison Darnell reassigns Medicare benefits to Core Psychiatry Inc. (Collierville, TN). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Allison Darnell's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Allison Darnell accept?
Health plans from BlueCross BlueShield of Tennessee, Cigna Healthcare, Oscar Insurance Company and UnitedHealthcare list Allison Darnell 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 Darnell was last updated on September 3, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Mrs. Allison Tolar Darnell, APRN · NPI 1043045610
Psychiatric/Mental Health physician in Collierville, Tennessee. Individual provider, active in the CMS NPPES registry since September 4, 2024.
## Identity
- **NPI:** 1043045610 (Entity type: Individual)
- **Enumerated:** September 4, 2024
- **Primary specialty:** Nurse Practitioner - Psychiatric/Mental Health · taxonomy 363LP0808X
- **State license:** 39154 (Tennessee)
- **Sole proprietor:** No
## Practice location
- **Address:** 1011 W POPLAR AVE STE 7, Collierville, TN 38017-2577
- **Phone:** (901) 446-0226
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Core Psychiatry Inc. (NPI 1396344784, Collierville, TN), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Tennessee, Hsc, College Of Medicine, class of 2025
## Record status
- **NPPES last updated:** September 3, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1043045610) · Data from the CMS NPPES public registry.