NPPES file of Aug 9, 2026

Floranne Ernste, M.D.

Rheumatology Physician · Rochester, MN

Floranne Ernste, M.D. is a rheumatology physician with a practice address in Rochester, Minnesota, and NPI 1033180641, issued on Jan 31, 2006. Check the license (Minnesota 46903, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1033180641
Name
Floranne Ernste
Credential
M.D.
Primary taxonomy
Rheumatology Physician 207RR0500X
License number
46903 MN
Self-reported in NPPES; status is on the state search
Practice location
200 1St St SW, Rochester, MN 55905
Phone
(507) 284-2511
Enumerated
Jan 31, 2006
Record last updated
Aug 13, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20040819000486); accepts Medicare assignment
Medical or professional school
East Tennessee State University Quillen College Of Medicine, 2003
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 200 1St St SW

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Timothy Aadland, M.D.Diagnostic Radiology Physician1780662783
  2. Christopher Aakre, MDInternal Medicine Physician1508151663
  3. Kathryn Aaro, P.T.Physical Therapist1619360666
  4. Danielle Aase, MDReproductive Endocrinology Physician1316524135
  5. Uzoamaka Abajue, PHARMDPharmacist1982335295
  6. Francisco Abarca Rendon, MDIndependent Medical Examiner Physician1790096246

Verify Floranne Ernste in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMinnesota Board of Medical Practice
    Search for license 46903
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Minnesota license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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72% fewer Medicare Part D claims than the average rheumatology physician in 2024

551 Medicare Part D claims for 121 beneficiaries, against an average of 1,978 among the 6,301 providers of this specialty who prescribed in Part D.

  1. Floranne Ernste551
  2. Specialty average1,978

Most prescribed

  1. Prednisone102 claims
  2. Methotrexate91 claims
  3. Hydroxychloroquine Sulfate76 claims
  4. Mycophenolate Mofetil53 claims
  5. Azathioprine21 claims
  6. Pantoprazole Sodium21 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

  1. Mayo ClinicRochester, MN

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Floranne Ernste among 173 rheumatology physician records in Minnesota

Floranne Ernste, M.D. is one of 173 rheumatology physician records with a practice address in Minnesota. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 15% of them.

  • NPI issued2006 · 15% of these records are older, 50% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated2003 · median 2008 among the 116 with a school on file
  • Record last updated2020 · 60% 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 Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Rheumatology Physician providers in Minnesota

There are 173 rheumatology physician records in Minnesota.

The 8 rheumatology physician records with the nearest ZIP codes

  1. Shreyasee Amin, M.D.Rochester, MN 559051316917552
  2. John Davis, M.D.Rochester, MN 559051881665024
  3. Joseph Duffy, M.D.Rochester, MN 559051770563769
  4. Sherine Gabriel, M.D.Rochester, MN 559051952389348
  5. Jacob Ijdo, MDRochester, MN 559051720075872
  6. Harvinder Luthra, MBBSRochester, MN 559051285614321
  7. Thomas Mason, M.D.Rochester, MN 559051104805522
  8. Eric Matteson, M.D.Rochester, MN 559051982677563

Common questions

What is Floranne Ernste, M.D.'s NPI number?

Floranne Ernste, M.D.'s National Provider Identifier (NPI) is 1033180641, issued on Jan 31, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Floranne Ernste, M.D. located?

The NPPES record lists a practice address at 200 1St St SW, Rochester, MN, 55905. Phone: (507) 284-2511. Providers update this record themselves, so call before visiting.

How can I verify Floranne Ernste, M.D.'s license?

NPPES lists Minnesota license number 46903, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Floranne Ernste, M.D. prescribe under Medicare Part D?

In 2024, Floranne Ernste, M.D. had 551 Medicare Part D claims for 121 beneficiaries; the average among rheumatology physician prescribers was 1,978. 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.