DR. ALLISON MICHELLE JOHNSEN M.D.
NPI 1730475252
Radiology - Diagnostic Radiology in Knoxville, TN
About Dr. Allison Michelle Johnsen M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ALLISON MICHELLE JOHNSEN M.D. (NPI 1730475252) is an individual diagnostic radiology provider in Knoxville, Tennessee, licensed in Tennessee (MD52135) and active in the NPI registry since June 2011. She is enrolled in Medicare PECOS, is affiliated with Lafollette Medical Center, and is a graduate of Other (2007).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Other Identifiers 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
Dr. Allison Michelle Johnsen M.d. 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 Reassignments
2Medicare enrollment records show Allison Johnsen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Knoxville, TN 37919
- Reassigned Medicare billing, Tennessee enrollment
- 22 clinicians in this Medicare group
Knoxville, TN 37919
- Reassigned Medicare billing, Tennessee enrollment
- 1,003 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.
Areas of Expertise CMS Part B claims 69
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Lafollette Medical Center
Acute Care Hospitals · La Follette, TNTennova Healthcare-Jefferson Memorial Hospital
Acute Care Hospitals · Jefferson City, TNSweetwater Hospital Association
Acute Care Hospitals · Sweetwater, TNPhysicians Regional Medical Center
Acute Care Hospitals · Powell, TNTennova Healthcare - Newport Medical Center
Acute Care Hospitals · Newport, TNPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 37919 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
KNOXVILLE, TN 37919
KNOXVILLE, TN 37919
KNOXVILLE, TN 37919
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 Johnsen's NPI number?
The NPI number for Allison Johnsen is 1730475252. It was assigned to this individual provider in the NPPES registry on June 22, 2011. The provider is also known as Allison Michelle Babelay.
Where is Allison Johnsen located?
Allison Johnsen practices at 4820 Old Kingston Pike, Knoxville, TN 37919. The listed phone number is (865) 558-9862.
What is Allison Johnsen's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Allison Johnsen enrolled in Medicare?
Yes. Allison Johnsen 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 organizations bill Medicare for Allison Johnsen's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Allison Johnsen reassigns Medicare benefits to 2 organizations: Abercrombie Radiological Consultants Inc (Knoxville, TN) and Summit Medical Group, PLLC (Knoxville, TN). Each 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 Johnsen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Allison Johnsen accept?
Health plans from Alliant Health Plans, Inc. and Cigna Healthcare list Allison Johnsen 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.
Is Allison Johnsen affiliated with any hospitals?
According to CMS data, Allison Johnsen is affiliated with Lafollette Medical Center, Tennova Healthcare-Jefferson Memorial Hospital, Sweetwater Hospital Association, Physicians Regional Medical Center and Tennova Healthcare - Newport Medical Center.
When was this NPI record last updated?
The NPPES record for Allison Johnsen was last updated on March 30, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.