NPPES file of Aug 9, 2026

Theodore Adolph Groskreutz, MD

Family Medicine Physician · Chaska, MN

Theodore Adolph Groskreutz, MD is a family medicine physician with a practice address in Chaska, Minnesota, and NPI 1982703948, issued on Sep 22, 2006. Check the license (Minnesota 21831, 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
1982703948
Name
Theodore Adolph Groskreutz
Credential
MD
Primary taxonomy
Family Medicine Physician 207Q00000X
License number
21831 MN
Self-reported in NPPES; status is on the state search
Practice location
111 Hundertmark RD, Chaska, MN 55318
Phone
(952) 448-2050
Enumerated
Sep 22, 2006
Record last updated
Nov 10, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20080111000557); accepts Medicare assignment
Medical or professional school
University Of Minnesota Medical School, 1973
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 111 Hundertmark RD

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

  1. Kerrie Allen, MDFamily Medicine Physician1225138134
  2. Julie Anderson, RDRegistered Dietitian1619618055
  3. Samantha BendzickPhysician Assistant1154777225
  4. Brooke Chaudhary, FNP-BC, FNP-CFamily Nurse Practitioner1760843536
  5. Gina Edison, NPNurse Practitioner1588763007
  6. Meghan Green, CPNP-PCPediatric Nurse Practitioner1043374259

Verify Theodore Adolph Groskreutz 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 21831
    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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60% more Medicare Part D claims than the average family medicine physician in 2024

5,673 Medicare Part D claims for 471 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 51 claims were for opioids.

  1. Theodore Groskreutz5,673
  2. Specialty average3,544

Most prescribed

  1. Atorvastatin Calcium418 claims
  2. Lisinopril274 claims
  3. Simvastatin272 claims
  4. Amlodipine Besylate254 claims
  5. Omeprazole223 claims
  6. Rosuvastatin Calcium205 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. Allina Health SystemAnnandale, MN

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

Theodore Adolph Groskreutz among 3,985 family medicine physician records in Minnesota

Theodore Adolph Groskreutz, MD is one of 3,985 family medicine physician records with a practice address in Minnesota. 74% 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 12% of them.

  • NPI issued2006 · 12% of these records are older, 42% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 62% of these records are
  • Graduated1973 · median 2006 among the 2,483 with a school on file
  • Record last updated2020 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Minnesota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

17 family medicine physician records list a practice address in Chaska

They are 17 of the 397 NPPES records with a practice address in Chaska, and 3,985 family medicine physician records in Minnesota.

The 8 family medicine physician records with the nearest ZIP codes

  1. Patrick Adams, MDChaska, MN 553181528028263
  2. Kerrie Allen, MDChaska, MN 553181225138134
  3. Kurt Brattain, M.D.Chaska, MN 553181023195476
  4. Lucas Hammell, D.O.Chaska, MN 553181528252764
  5. William Hammes, MDChaska, MN 553181902907934
  6. David Haugland, M.D.Chaska, MN 553181043259773
  7. Bonita Hill, M.D.Chaska, MN 553181861561417
  8. Barbara Houts, MDChaska, MN 553181144321233

Common questions

What is Theodore Adolph Groskreutz, MD's NPI number?

Theodore Adolph Groskreutz, MD's National Provider Identifier (NPI) is 1982703948, issued on Sep 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Theodore Adolph Groskreutz, MD located?

The NPPES record lists a practice address at 111 Hundertmark RD, Chaska, MN, 55318. Phone: (952) 448-2050. Providers update this record themselves, so call before visiting.

How can I verify Theodore Adolph Groskreutz, MD's license?

NPPES lists Minnesota license number 21831, 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 Theodore Adolph Groskreutz, MD prescribe under Medicare Part D?

In 2024, Theodore Adolph Groskreutz, MD had 5,673 Medicare Part D claims for 471 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.