Adriana Y. Koek, MD

Medicare activity in 2024

Official CMS public-use data for Adriana Y. Koek, 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.

Most frequent services

1. Prolonged office or other outpatient evaluation and management service(s) beyond the maximum required time of the primary procedure which has been selected using total time on the date of the primary service; each additional 15 minutes by the physician or (G2212)13 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%
• Arthritis62%
• High blood pressure55%
• Anxiety38%

Hospitals where Adriana Y. Koek works

Medicare's Facility Affiliation Data lists Adriana Y. Koek 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.

• Kaiser Foundation Hospital and Rehab CenterVallejo, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: not listed by Medicare · CCN 050073
• Saint Luke's East HospitalLees Summit, MO · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 260216
• St Lukes Hospital of Kansas CityKansas City, MO · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 260138

Practice locations

Addresses where Adriana Y. Koek is enrolled with Medicare (CMS data updated October 2, 2026).

• 1 Quality DrVacaville, CA 95688 (707) 624‑4000
• 4400 Broadway, Suite 520Kansas City, MO 64111 (816) 531‑4080

Group practices

Medicare enrollment lists Adriana Y. Koek as a member of these groups (CMS data updated October 2, 2026).

• Permanente Medical Group Inc10,996 clinicians in the group
• Saint Lukes Physician Group Inc1,237 clinicians in the group

Specialties

• Neurologyprimary
• Epileptologistsalso

Find other Neurology doctors in California →

Other neurologists in Vacaville

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

• Brian D. Stephens, MD
• Parvinder Kaur, MD
• George Nune, MD
• Yuan Chen, MD
• Ruby S. Ali, MD
• Lise Phan, MD
• Jyes Querubin, MD
• Devenkumar H. Mistry, MD

All neurologists in Vacaville →

Other clinicians in Permanente Medical Group Inc

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

• Derek S. Kubota, MD
• Christian C. Safian, MD
• Jamie L. Staley, PA
• Claudia Praetel, MD
• Gieric Laput, MD
• Margaret S. Park

Clinician information

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