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Diagnostic Radiology

Kirsten L. Gaarder, MD

Works at hospitals in Modesto, CA · Turlock, CA · Merced, CA · California

Summary

Dr. Kirsten L. Gaarder, MD is a radiologist at 3900 Geer Rd, Turlock, CA 95382. Phone: (209) 669-0600. Accepts Medicare assignment. In 2024, Kirsten L. Gaarder had 1,892 Original Medicare patients and 6,570 services. NPI 1437355765. 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.

  • Specialty: Radiologist (Medicare lists Diagnostic Radiology)
  • Address: 3900 Geer Rd, Turlock, CA 95382 · Directions
  • Phone: (209) 669‑0600
  • Medicare: Accepts Medicare assignment
  • Hospitals: Doctors Medical Center, Emanuel Medical Center, Mercy Medical Center
  • Group practice: Modesto Radiological Medical Group Inc (+1 more)
  • Medical school: Oregon Health Sciences University School Of Medicine · graduated 2007 (19 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Kirsten L. Gaarder, 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 Kirsten L. Gaarder accept Medicare assignment?
Yes. Medicare's clinician data says Kirsten L. Gaarder 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 Kirsten L. Gaarder see?
In 2024, CMS data shows 1,892 Original Medicare patients and 6,570 services for Kirsten L. Gaarder. This counts Original Medicare only and measures volume, not quality.
What is Kirsten L. Gaarder's NPI number?
1437355765. 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 Kirsten L. Gaarder, 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 patients1,892
Services billed to Medicare6,570
Different services or procedures148
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Injection, gadoterate meglumine, 0.1 ml (A9575)3,560 services
  2. X-ray of chest, 1 view (71045)474 services
  3. Screening mammography (77067)372 services
  4. Dxa bone density measurement of hip, pelvis, spine (77080)222 services
  5. Screening 3d breast mammography (77063)215 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 pressure75%
  • High cholesterol75%
  • Diabetes46%
  • Arthritis44%
  • Ischemic heart disease34%
  • Chronic kidney disease31%

Hospitals where Kirsten L. Gaarder works

Medicare's Facility Affiliation Data lists Kirsten L. Gaarder 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.

  • Doctors Medical CenterModesto, CA · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 050464
  • Emanuel Medical CenterTurlock, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050179
  • Mercy Medical CenterMerced, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050444

Practice locations

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

Group practices

Medicare enrollment lists Kirsten L. Gaarder as a member of these groups (CMS data updated October 2, 2026).

  • Modesto Radiological Medical Group Inc91 clinicians in the group
  • Turlock Imaging Services, LLC15 clinicians in the group

Specialties

Find other Diagnostic Radiology doctors in California →

Other radiologists in Turlock

Clinicians with the same Medicare primary specialty in Turlock, CA — not a recommendation.

All radiologists in Turlock →

Other clinicians in Modesto Radiological Medical Group Inc

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

Clinician information

CredentialMD
Medical schoolOregon Health Sciences University School Of Medicine
Graduation year2007 (19 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1437355765
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