Zackery Oakey, MD

Medicare activity in 2024

Official CMS public-use data for Zackery Oakey, 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. Imaging of retina (92134)180 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)145 services
3. Extended exam of the back part of the eye with retinal drawing (92201)87 services
4. Injection of drug into eye (67028)68 services
5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)68 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 cholesterol72%
• High blood pressure63%
• Arthritis38%
• Diabetes37%
• Chronic kidney disease29%
• Ischemic heart disease24%

Hospitals where Zackery Oakey works

Medicare's Facility Affiliation Data lists Zackery Oakey 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.

• Hoag Memorial Hospital PresbyterianNewport Beach, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050224

Practice locations

Addresses where Zackery Oakey is enrolled with Medicare (CMS data updated October 2, 2026).

• 1000 Fivepoint, Suite AIrvine, CA 92618 (949) 671‑4673
• 10800 Magnolia AveRiverside, CA 92505 (951) 353‑2000
• 114 Pacifica, Suite 390Irvine, CA 92618 (949) 478‑4770

Group practices

Medicare enrollment lists Zackery Oakey as a member of these groups (CMS data updated October 2, 2026).

• Southern California Permanente Medical Group11,293 clinicians in the group
• City of Hope Medical Foundation982 clinicians in the group

Specialties

• Ophthalmologyprimary

Find other Ophthalmology doctors in California →

Other ophthalmologists in Irvine

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

• Daniel C. Kline, MD
• Wei Gui, MD
• Todd H. Driver, MD
• Zahra Ghiasi, MD
• Melanie H. Erb, MD
• Barbara Shang, MD
• Bao Thu T. Nguyen, MD
• Efraim Duzman, MD

All ophthalmologists in Irvine →

Other clinicians in Southern California Permanente Medical Group

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

• Laura Y. Zhang, MD
• Priyantha L. Wickramanayake, PA
• Kevin Kin, DO
• Amy L. Wolfner, MD
• Miguel F. Palma Diaz, MD
• Gail Frances Liezl Abcede, MD

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