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Orthopedic Surgery

Cynthia L. Kooima, MD

Works at hospitals in Mesa, AZ · Arizona

Summary

Dr. Cynthia L. Kooima, MD is an orthopedic surgeon at 2940 E Banner Gateway Dr, Gilbert, AZ 85234. Phone: (602) 385-2115. Accepts Medicare assignment. In 2024, Cynthia L. Kooima had 397 Original Medicare patients and 7,743 services. NPI 1114971363. 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: Orthopedic surgeon (Medicare lists Orthopedic Surgery)
  • Address: 2940 E Banner Gateway Dr, Gilbert, AZ 85234 · Directions (1 more location)
  • Phone: (602) 385‑2115
  • Medicare: Accepts Medicare assignment
  • Hospitals: Arizona Spine and Joint Hospital, Banner Baywood Medical Center
  • Group practice: Orthopedic Specialists of North America PLLC
  • Medical school: Michigan State University College Of Human Medicine · graduated 1998 (28 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Cynthia L. Kooima, 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 Cynthia L. Kooima accept Medicare assignment?
Yes. Medicare's clinician data says Cynthia L. Kooima 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 Cynthia L. Kooima see?
In 2024, CMS data shows 397 Original Medicare patients and 7,743 services for Cynthia L. Kooima. This counts Original Medicare only and measures volume, not quality.
What is Cynthia L. Kooima's NPI number?
1114971363. 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 Cynthia L. Kooima, 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 patients397
Services billed to Medicare7,743
Different services or procedures38
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Injection, methylprednisolone acetate, 1 mg (J1010)5,920 services
  2. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)274 services
  3. Aspiration and/or injection of fluid from large joint (20610)168 services
  4. X-ray of knee, 4 or more views (73564)162 services
  5. X-ray of shoulder, minimum of 2 views (73030)131 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 cholesterol75%
  • Arthritis75%
  • High blood pressure72%
  • Ischemic heart disease28%
  • Diabetes24%
  • Anxiety23%

Hospitals where Cynthia L. Kooima works

Medicare's Facility Affiliation Data lists Cynthia L. Kooima 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 Cynthia L. Kooima is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • Orthopedic Specialists of North America PLLC309 clinicians in the group

Specialties

Find other Orthopedic Surgery doctors in Arizona →

Other orthopedic surgeons in Gilbert

Clinicians with the same Medicare primary specialty in Gilbert, AZ — not a recommendation.

All orthopedic surgeons in Gilbert →

Other clinicians in Orthopedic Specialists of North America PLLC

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

Clinician information

CredentialMD
Medical schoolMichigan State University College Of Human Medicine
Graduation year1998 (28 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1114971363
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