TAMARACK MEDICAL
NPI 1265320881
Internal Medicine in Memphis, TN
About Tamarack Medical NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TAMARACK MEDICAL (NPI 1265320881) is a healthcare organization registered as an internal medicine in Memphis, Tennessee and active in the NPI registry since June 2025. The organization lists Kerry L Milligan, Authorized Official, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Tamarack Medical is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
2Medicare enrollment records show 2 clinicians reassign Medicare billing to Tamarack Medical, which bills Medicare for the services they deliver. Of these, 1 practice at this address and 2 within 10 miles. They are listed nearest first.
Clinicians, nearest first (2)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Tamarack Medical's NPI number?
The NPI number for Tamarack Medical is 1265320881. It was assigned to this organization in the NPPES registry on June 24, 2025.
Where is Tamarack Medical located?
Tamarack Medical is located at 4100 Austin Peay Hwy, Memphis, TN 38128. The listed phone number is (901) 213-5400.
What is Tamarack Medical's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Tamarack Medical enrolled in Medicare?
Yes. Tamarack Medical is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Tamarack Medical?
According to the CMS Revalidation Reassignment List (October 2026 release), 2 clinicians reassign their Medicare billing to Tamarack Medical, in Hospitalist and Nurse Practitioner. A 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 the clinician's services. Of these, 1 practice at this address and 2 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Tamarack Medical was last updated on August 12, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Tamarack Medical · NPI 1265320881
Internal Medicine organization in Memphis, Tennessee. Organization record, active in the CMS NPPES registry since June 24, 2025.
## Identity
- **NPI:** 1265320881 (Entity type: Organization)
- **Enumerated:** June 24, 2025
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **Organization subpart:** No
- **Authorized official:** Kerry Milligan, AUTHORIZED OFFICIAL
## Practice location
- **Address:** 4100 AUSTIN PEAY HWY, Memphis, TN 38128-2502
- **Phone:** (901) 213-5400
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 2 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Hospitalist (1), Nurse Practitioner (1); 1 practice at this address and 2 within 10 miles · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 12, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1265320881) · Data from the CMS NPPES public registry.