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General Surgery

Jason R. Keonin, MD

Works at hospitals in Estherville, IA · Spirit Lake, IA · Emmetsburg, IA … · Iowa

Summary

Dr. Jason R. Keonin, MD is a general surgeon at 1200 1st Ave E, Spencer, IA 51301. Phone: (712) 264-8300. May accept Medicare assignment. In 2024, Jason R. Keonin had 484 Original Medicare patients and 787 services. NPI 1790711885. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Jason R. Keonin, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Jason R. Keonin accept Medicare assignment?
Medicare's clinician data says Jason R. Keonin may accept Medicare assignment (as of October 2, 2026). Ask the office whether they accept it for your visit.
How many Medicare patients does Jason R. Keonin see?
In 2024, CMS data shows 484 Original Medicare patients and 787 services for Jason R. Keonin. This counts Original Medicare only and measures volume, not quality.
What is Jason R. Keonin's NPI number?
1790711885. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Jason R. Keonin, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients484
Services billed to Medicare787
Different services or procedures78
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Removal of polyps or growths of large bowel using an endoscope with mechanical snare (45385)165 services
  2. Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito (G0500)64 services
  3. Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope (43235)61 services
  4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)51 services
  5. Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes (99221)35 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure74%
  • High cholesterol70%
  • Arthritis39%
  • Chronic kidney disease28%
  • Diabetes27%
  • Anxiety23%

Hospitals where Jason R. Keonin works

Medicare's Facility Affiliation Data lists Jason R. Keonin at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.

  • Avera Holy Family HospitalEstherville, IA · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 161351
  • Lakes Regional HealthcareSpirit Lake, IA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 160124
  • Palo Alto County HospitalEmmetsburg, IA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 161357
  • Pocahontas Community HospitalPocahontas, IA · Critical Access Hospital · Emergency services: listed by Medicare · CCN 161305
  • Spencer Municipal HospitalSpencer, IA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 160112

Practice locations

Addresses where Jason R. Keonin is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 10; the Medicare profile lists all.

Group practices

Medicare enrollment lists Jason R. Keonin as a member of these groups (CMS data updated October 2, 2026).

  • Spencer Municipal Hospital92 clinicians in the group
  • Lakes Regional Healthcare38 clinicians in the group
  • Kossuth Regional Health Center25 clinicians in the group

Specialties

Find other General Surgery doctors in Iowa →

Other general surgeons in Spencer

Clinicians with the same Medicare primary specialty in Spencer, IA — not a recommendation.

All general surgeons in Spencer →

Other clinicians in Spencer Municipal Hospital

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolUniversity Of Iowa, Rj & L Carver College Of Medicine
Graduation year2005 (21 years since medical school)
Gender (as listed)Male
Medicare assignmentMay accept for some services
NPI (National Provider Identifier)1790711885
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians