Kenneth Robert Johnsen, MD
Rheumatology Physician · Knoxville, TN
Kenneth Robert Johnsen, MD is a rheumatology physician with a practice address in Knoxville, Tennessee, and NPI 1851650865, issued on May 10, 2012. Check the license (Tennessee 51150, as entered in NPPES) on the Tennessee Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Kenneth Robert Johnsen
- Credential
- MD
- Primary taxonomy
- Rheumatology Physician 207RR0500X
- License number
- 51150 TN
Self-reported in NPPES; status is on the state search - Practice location
- 4707 Papermill Dr Ste 200, Knoxville, TN 37909
- Phone
- (865) 602-7983
- Enumerated
- May 10, 2012
- Record last updated
- Mar 18, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (865) 602-7984
- Medicare enrollment
- Enrolled (PECOS I20151020000283); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest rheumatology physician records → All 139 in Tennessee → Look up another NPI →
Also registered at 4707 Papermill Dr Ste 200
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Erin Kimble, PA-CPhysician Assistant1881147130
Verify Kenneth Robert Johnsen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTennessee Board of Medical Examiners
Search for license 51150Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% more Medicare Part D claims than the average rheumatology physician in 2024
2,130 Medicare Part D claims for 387 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.
Most prescribed
- Methotrexate532 claims
- Hydroxychloroquine Sulfate297 claims
- Sulfasalazine163 claims
- Prednisone136 claims
- Leflunomide132 claims
- Folic Acid113 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $2,512.98
147 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 4,486 providers of this specialty with any payment received $8,538.33 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Physiotherapy Associates IncLoudon, TN
- Rheumatology Consultants, PLLCKnoxville, TN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Kenneth Robert Johnsen among 139 rheumatology physician records in Tennessee
Kenneth Robert Johnsen, MD is one of 139 rheumatology physician records with a practice address in Tennessee. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 75% of them.
- NPI issued2012 · 75% of these records are older, 19% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 69% of these records are
- Graduated2012 · median 2003 among the 96 with a school on file
- Record last updated2020 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RR0500X and a Tennessee practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Rheumatology Physician providers in Tennessee
There are 139 rheumatology physician records in Tennessee.
All 139 in Tennessee → Every provider in Knoxville → Rheumatology Physician nationwide →
The 8 rheumatology physician records with the nearest ZIP codes
- Tonya Baker, M.D.Knoxville, TN 379091508171869
- William Bush, M.D.Knoxville, TN 379091740677426
- Robert Capps, M.D.Knoxville, TN 379091336234376
- Marcin Gornisiewicz, M.D.Knoxville, TN 379091285729145
- Jay Warrick, M.D.Knoxville, TN 379091326083015
- Donna Winn, M.D.Knoxville, TN 379091477597532
- John Wolfe, M.D.Knoxville, TN 379091437244415
- Brett SmithKnoxville, TN 379161316265887
Common questions
What is Kenneth Robert Johnsen, MD's NPI number?
Kenneth Robert Johnsen, MD's National Provider Identifier (NPI) is 1851650865, issued on May 10, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Kenneth Robert Johnsen, MD located?
The NPPES record lists a practice address at 4707 Papermill Dr Ste 200, Knoxville, TN, 37909. Phone: (865) 602-7983. Providers update this record themselves, so call before visiting.
How can I verify Kenneth Robert Johnsen, MD's license?
NPPES lists Tennessee license number 51150, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Kenneth Robert Johnsen, MD prescribe under Medicare Part D?
In 2024, Kenneth Robert Johnsen, MD had 2,130 Medicare Part D claims for 387 beneficiaries; the average among rheumatology physician prescribers was 1,978. Part D covers Medicare prescriptions only.
What is Kenneth Robert Johnsen, MD's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.