Cassiopeia M. Callens, FNP
Family Nurse Practitioner · Knoxville, TN
Cassiopeia M. Callens, FNP is a family nurse practitioner with a practice address in Knoxville, Tennessee, and NPI 1548046998, issued on Sep 1, 2023. Check the license with the Tennessee board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Cassiopeia M. Callens
- Credential
- FNP
- Primary taxonomy
- Family Nurse Practitioner 363LF0000X
- License number
- 4009267 KY
Self-reported in NPPES; status is on the state search - Practice location
- 3904 Lonas Dr, Knoxville, TN 37909
- Phone
- (270) 219-9065
- Enumerated
- Sep 1, 2023
- Record last updated
- Apr 23, 2024
- Medicare enrollment
- Enrolled (PECOS I20240516002738); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 3904 Lonas Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Cassandra Gibson, PA-CPhysician Assistant1811846470
- Khushbu Patel, FNPStudent in an Organized Health Care Education/Training Program1295661908
- Beth RidingsFamily Nurse Practitioner1982478863
Verify Cassiopeia M. Callens in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Tennessee board licenses this professionCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average family nurse practitioner in 2024
145 Medicare Part D claims for 98 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.
Most prescribed
- Methylprednisolone24 claims
- Cephalexin14 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Baptist Health Medical Group IncRichmond, KY
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
737 family nurse practitioner records list a practice address in Knoxville
They are 737 of the 14,339 NPPES records with a practice address in Knoxville, and 9,060 family nurse practitioner records in Tennessee.
All 737 in Knoxville → All 9,060 in Tennessee → Every provider in Knoxville →
Other family nurse practitioner records in Tennessee
- Benjamin Aaron, FNP-CCookeville, TN1811454077
- Sandra Aaron, FNP-BCOoltewah, TN1801561964
- Jessica Abbott, FNPNashville, TN1801537287
- Felecia Abdelfattah, APRN BCBristol, TN1497768451
- Angela Abdi, MSN,FNP,BCNashville, TN1780795450
- Hodan Abdi, NPNashville, TN1710383922
- Amed Abdullah, FNP-CNashville, TN1477218774
- Dilmon Abdullah, NPAntioch, TN1467876821
- Redor AbdullahNashville, TN1205344009
- Shams Abed, FNP-BCAshland City, TN1982334884
Common questions
What is Cassiopeia M. Callens, FNP's NPI number?
Cassiopeia M. Callens, FNP's National Provider Identifier (NPI) is 1548046998, issued on Sep 1, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Cassiopeia M. Callens, FNP located?
The NPPES record lists a practice address at 3904 Lonas Dr, Knoxville, TN, 37909. Phone: (270) 219-9065. Providers update this record themselves, so call before visiting.
How can I verify Cassiopeia M. Callens, FNP's license?
Search the Tennessee board that licenses this profession; the NPPES record confirms identity only.
How much does Cassiopeia M. Callens, FNP prescribe under Medicare Part D?
In 2024, Cassiopeia M. Callens, FNP had 145 Medicare Part D claims for 98 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.