Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Daniel William Riethmiller, MD

Individual provider Family Medicine Physician · NPI 1568543353

Daniel William Riethmiller, MD is registered under Family Practice in Milton, Wisconsin. Graduated from Indiana University School of Medicine in 2005, 21 years ago. Practices with Group Health Cooperative of South Central Wisconsin, a 234-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Colorado and Wisconsin.

Years since qualifying
21
Trained at
Indiana University School of Medicine
Licensed in
CO, WI
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

725 S Janesville St
Milton, WI 53563-1775
Phone: (608) 868-5800
Fax: (608) 868-5858
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence 53391-20 (WI)
Family Medicine Physician Taxonomy 207Q00000X · Licence TL-1783 (CO)

Record details

NPI number1568543353
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedOctober 18, 2006
Last updated in NPPESSeptember 29, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyFAMILY PRACTICE
Medical schoolINDIANA UNIVERSITY SCHOOL OF MEDICINE
Graduated 2005 (21 years in practice)
Group practice Group Health Cooperative Of South Central Wisconsin — 234 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients196
Services billed 436 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Colleagues at Group Health Cooperative of South Central Wisconsin

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 234 clinicians in the practice; 12 are shown here.

Other providers in Milton