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Diagnostic Radiology

Gary L. Famestad, MD

Works at hospitals in Sheldon, IA · Worthington, MN · Iowa, Minnesota

Summary

Dr. Gary L. Famestad, MD is a radiologist at 1301 W 18th St, Sioux Falls, SD 57105. Phone: (605) 995-5635. Accepts Medicare assignment. In 2024, Gary L. Famestad had 303 Original Medicare patients and 548 services. NPI 1811959323. 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 Gary L. Famestad, 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 Gary L. Famestad accept Medicare assignment?
Yes. Medicare's clinician data says Gary L. Famestad accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Gary L. Famestad see?
In 2024, CMS data shows 303 Original Medicare patients and 548 services for Gary L. Famestad. This counts Original Medicare only and measures volume, not quality.
What is Gary L. Famestad's NPI number?
1811959323. 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 Gary L. Famestad, 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 patients303
Services billed to Medicare548
Different services or procedures26
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) (G0279)105 services
  2. Diagnostic mammography of 1 breast (77065)68 services
  3. Limited ultrasound scan of 1 breast (76642)67 services
  4. Imaging for evaluation of swallowing function (74230)49 services
  5. Screening 3d breast mammography (77063)47 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 pressure71%
  • High cholesterol68%
  • Arthritis50%
  • Diabetes28%
  • Anxiety26%
  • Depression22%

Hospitals where Gary L. Famestad works

Medicare's Facility Affiliation Data lists Gary L. Famestad 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.

Practice locations

Addresses where Gary L. Famestad is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Gary L. Famestad as a member of this group (CMS data updated October 2, 2026).

  • Sanford Clinic268 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in South Dakota →

Other radiologists in Sioux Falls

Clinicians with the same Medicare primary specialty in Sioux Falls, SD — not a recommendation.

All radiologists in Sioux Falls →

Other clinicians in Sanford Clinic

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

Clinician information

CredentialMD
Medical schoolSanford School Of Medicine Of University Of South Dakota
Graduation year1983 (43 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1811959323
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