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

Ian J Stock, DO

Individual provider Family Medicine Physician · NPI 1326544537

Ian J Stock, DO is registered under Family Practice in Decorah, Iowa. Graduated from Midwestern University, Chicago College of Osteopathic Med in 2018, 8 years ago. Practices with Gundersen Lutheran Medical Center Inc, a 896-clinician group, works from 2 locations, accepts Medicare assignment and offers telehealth. Licensed in Iowa and Wisconsin.

Years since qualifying
8
Trained at
Midwestern University, Chicago College of Osteopathic Med
Licensed in
IA, WI
In the registry since
2018
Specialties on file
3
What do these letters mean?
DO — Doctor of Osteopathic Medicine
A fully licensed physician, trained like an MD with additional musculoskeletal training. Equivalent practice rights in all 50 states.

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Practice location Address checks out

1830 State Highway 9
Decorah, IA 52101-7301
Phone: (563) 382-3140
Show map & directions

Directions in Google Maps · Apple Maps · OpenStreetMap

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 1836 South Ave, La Crosse, WI 54601-5429 — (608) 782-7300

Specialties & licences

Family Medicine Physician (primary) Taxonomy 207Q00000X · Licence DO-05825 (IA)
Family Medicine Physician Taxonomy 207Q00000X · Licence 71783 (WI)
Student in an Organized Health Care Education/Training Program Taxonomy 390200000X (WI)

Record details

NPI number1326544537
Entity typeIndividual (Type 1)
GenderFemale
Credentials DO
Sole proprietorNo
NPI enumeratedApril 5, 2018
Last updated in NPPESFebruary 14, 2023
Certification dateFebruary 14, 2023

Medicare enrollment

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

Medicare specialtyFAMILY PRACTICE
Medical schoolMIDWESTERN UNIVERSITY, CHICAGO COLLEGE OF OSTEOPATHIC MED
Graduated 2018 (8 years in practice)
Group practice Gundersen Lutheran Medical Center Inc — 896 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations5 on file with Medicare

Procedures

From CMS Care Compare, which counts the procedures a clinician billed to Original Medicare and Medicare Advantage over a recent 12-month period. CMS reports a fixed list of common procedures, so this is not everything the clinician does. Counts of 10 or fewer are given as a range, because CMS withholds small numbers.

Removal of skin lesions 28 times · 68th percentile
Removal of nail tissue 1–10 times
Removal or shaving of skin growth 1–10 times
Skin biopsy 1–10 times

The percentile compares how often this clinician performed the procedure with other clinicians who performed it, as CMS calculates it. It measures volume, not outcomes or skill.

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 patients500
Services billed 4,789 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

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.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Gundersen Lutheran Medical Center Hospital · La Crosse, WI
  • Regional Health Services Of Howard County Hospital · Cresco, IA
  • Veterans Memorial Hospital Hospital · Waukon, IA · listed as Veterans Memorial Hospital-Public Health
  • St Croix Hospice Hospice · Strawberry Point, IA · listed as St Croix Hospice LLC
  • Wellington Place Nursing home · Decorah, IA · listed as Oneota Riverview Care Facility
  • Gundersen Palmer Lutheran Hospital And Clinics Hospital · West Union, IA
  • Winnmed Hospital · Decorah, IA
  • Winnmed Home Health Home health agency · Decorah, IA
  • Howard County Community Hospice Hospice · Cresco, IA
  • Winnmed Hospice Hospice · Decorah, IA
  • Northgate Care Center Nursing home · Waukon, IA

Colleagues at Gundersen Lutheran Medical Center Inc

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 896 clinicians in the practice; 12 are shown here.

Other providers in Decorah