MRS. CASSIOPEIA M CALLENS FNP
NPI 1548046998
Nurse Practitioner - Family in Knoxville, TN

Active since September 01, 2023PECOS EnrolledAccepts Medicare Assignment
3904 LONAS DR, KNOXVILLE, TN 37909(270) 219-9065 Get Directions Write a Review

NPPES record last updated: April 23, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Apr 23, 2024, Sep 6, 2023, Sep 1, 2023 (3 updates tracked since 2023).

About Mrs. Cassiopeia M Callens Fnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. CASSIOPEIA M CALLENS FNP (NPI 1548046998) is an individual family provider in Knoxville, Tennessee, licensed in Kentucky (4009267) and active in the NPI registry since September 2023. She is enrolled in Medicare PECOS, is affiliated with Baptist Health Hardin, and is a graduate of Other (2021).

NPPES Registry Identity

NPI1548046998
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameMRS. CASSIOPEIA M CALLENSCredential: FNP
Location Address3904 LONAS DRKnoxville, TN 37909-3323
Mailing Address3904 Lonas DrKnoxville, TN 37909-3323 · (270) 219-9065
Sole ProprietorNo
Medical School CMSOtherGraduated 2021
Enumeration DateSeptember 1, 2023
Last NPPES UpdateApril 23, 20243 updates tracked since enumeration
NPPES CertifiedApril 23, 2024
✔ NPI 1548046998 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in KY · 4009267
3904 LONAS DR, Knoxville, TN 37909

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. Cassiopeia M Callens Fnp 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.

PECOS PAC ID4284075599
PECOS Enrollment IDI20240516002738
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

2

Medicare enrollment records show Cassiopeia Callens reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Rural Health
403 SYCAMORE ST
Williamsburg, KY 40769
  • Reassigned Medicare billing, Kentucky enrollment
  • 1,441 clinicians in this Medicare group
General Practice
4055 VALLEY VIEW LN STE 700
Dallas, TX 75244
  • Reassigned Medicare billing, Kentucky enrollment
  • 390 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 6

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.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
86 services86 patients
Detection test by immunoassay technique for severe acute respiratory syndrome coronavirus and influenza 87428
This test uses a method called immunoassay to identify severe acute respiratory syndrome coronavirus and influenza. It works by detecting specific proteins (antigens) in a sample, like a nasal swab. It's a powerful tool in diagnosing these viral infections.
19 services19 patients
X-ray of chest, 2 views 71046
A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.
18 services18 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
17 services17 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
16 services16 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
16 services15 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Baptist Health Hardin

Acute Care Hospitals · Elizabethtown, KY
3/5 CMS rating
OwnershipGovernment - Local
CMS Certification Number180012
Location913 North Dixie AvenueElizabethtown, KY 42701 · Hardin County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 37909 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$81.53 typical visit price
range $52.64 – $160.89
Typical copayment $20.38 (range $13.16 – $40.22)
Most-billed visit code 99203
Established Patient
$93.60 typical visit price
range $16.72 – $131.41
Typical copayment $23.40 (range $4.18 – $32.85)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 8

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Registered Nurse
3904 LONAS DR
KNOXVILLE, TN 37909
Nurse Practitioner (Family)
3904 LONAS DR
KNOXVILLE, TN 37909
Registered Nurse
3904 LONAS DR
KNOXVILLE, TN 37909
Student in an Organized Health Care Education/Training Program
3904 LONAS DR
KNOXVILLE, TN 37909
Physician Assistant
3904 LONAS DR
KNOXVILLE, TN 37909
Student in an Organized Health Care Education/Training Program
3904 LONAS DR
KNOXVILLE, TN 37909
Nurse Practitioner (Family)
3904 LONAS DR
KNOXVILLE, TN 37909
Nurse Practitioner (Family)
3904 LONAS DR
KNOXVILLE, TN 37909

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 Cassiopeia Callens's NPI number?

The NPI number for Cassiopeia Callens is 1548046998. It was assigned to this individual provider in the NPPES registry on September 1, 2023.

Where is Cassiopeia Callens located?

Cassiopeia Callens practices at 3904 Lonas Dr, Knoxville, TN 37909. The listed phone number is (270) 219-9065.

What is Cassiopeia Callens's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Cassiopeia Callens enrolled in Medicare?

Yes. Cassiopeia Callens 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 Cassiopeia Callens's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Cassiopeia Callens reassigns Medicare benefits to 2 organizations: Baptist Health Medical Group Inc (Williamsburg, KY) and Signify Health, LLC (Dallas, TX). 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 Cassiopeia Callens's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Cassiopeia Callens accept?

Health plans from Ambetter Health, Ambetter from Buckeye Health Plan, Ambetter of Tennessee and Anthem Blue Cross and Blue Shield list Cassiopeia Callens 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 Cassiopeia Callens affiliated with any hospitals?

According to CMS data, Cassiopeia Callens is affiliated with Baptist Health Hardin.

When was this NPI record last updated?

The NPPES record for Cassiopeia Callens was last updated on April 23, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 years 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.