NPPES file of Aug 9, 2026

Michael D. Keppen, M.D.

Hematology & Oncology Physician · Sioux Falls, SD

Michael D. Keppen, M.D. is a hematology & oncology physician with a practice address in Sioux Falls, South Dakota, and NPI 1881690592, issued on Jun 27, 2005. Check the license (South Dakota 3341, as entered in NPPES) on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1881690592
Name
Michael D. Keppen
Credential
M.D.
Primary taxonomy
Hematology & Oncology Physician 207RH0003X
License number
3341 SD
Self-reported in NPPES; status is on the state search
Practice location
1309 W 17TH St, Sioux Falls, SD 57104
Phone
(605) 328-8000
Enumerated
Jun 27, 2005
Record last updated
Dec 2, 2009 (not updated in 17 years: call before relying on the address or phone)
Fax
(605) 328-8001
Medicaid ID
6002232 SD
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1309 W 17TH St

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

  1. Jonathan Bleeker, MDHematology & Oncology Physician1457573974
  2. Joseph Driewer, PHDRadiological Physics Physician1376499038
  3. Laurie Gromer, CNPNurse Practitioner1851361216
  4. Susan Halbritter, CNPNurse Practitioner1295788271
  5. Kimberly Hamer, DNP, CNP, FNP-CNurse Practitioner1497127005
  6. Ashley Heupel, CNPAcute Care Nurse Practitioner1316829534

Verify Michael D. Keppen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersSouth Dakota Board of Medical and Osteopathic Examiners
    Search for license 3341
    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 South Dakota license search

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The practice group's MIPS final score for 2023 (Medicare payment program): 82.3 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score88.8
  2. Costout of 100 · 30%53.0
  3. Promoting interoperabilityout of 100 · 25%99.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Michael D. Keppen among 31 hematology & oncology physician records in South Dakota

Michael D. Keppen, M.D. is one of 31 hematology & oncology physician records with a practice address in South Dakota. 87% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 77% newer
  • In a Medicare fileYes · 87% of these records are
  • In the CMS Doctors and Clinicians fileNo · 68% of these records are
  • Record last updated2009 · 71% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Hematology & Oncology Physician providers in South Dakota

There are 31 hematology & oncology physician records in South Dakota.

The 8 hematology & oncology physician records with the nearest ZIP codes

  1. Jonathan Bleeker, MDSioux Falls, SD 571041457573974
  2. Keely Hack, M.D.Sioux Falls, SD 571041184743148
  3. Miroslaw Mazurczak, M.D.Sioux Falls, SD 571041437155140
  4. Robert Nelimark, M.D.Sioux Falls, SD 571041669478376
  5. Steven Powell, M.D.Sioux Falls, SD 571041548454291
  6. Amy Sanford, M.D.Sioux Falls, SD 571041679708283
  7. Travis Snyders, M.D.Sioux Falls, SD 571041588013643
  8. Christopher Sumey, M.D.Sioux Falls, SD 571041588836548

Common questions

What is Michael D. Keppen, M.D.'s NPI number?

Michael D. Keppen, M.D.'s National Provider Identifier (NPI) is 1881690592, issued on Jun 27, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Michael D. Keppen, M.D. located?

The NPPES record lists a practice address at 1309 W 17TH St, Sioux Falls, SD, 57104. Phone: (605) 328-8000. Providers update this record themselves, so call before visiting.

How can I verify Michael D. Keppen, M.D.'s license?

NPPES lists South Dakota license number 3341, as entered by the provider. Search the South Dakota Board of Medical and Osteopathic Examiners at https://www.sdbmoe.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

What is Michael D. Keppen, M.D.'s MIPS final score?

The 2023 MIPS final score is 82.3 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.