Zafar S. Khan, MD

Medicare activity in 2024

Official CMS public-use data for Zafar S. Khan, 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. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)245 services
2. Therapy procedure using manual technique, each 15 minutes (97140)204 services
3. Therapy procedure using functional activities (97530)188 services
4. Therapy procedure to re-educate brain-to-nerve-to-muscle function, each 15 minutes (97112)156 services
5. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)105 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%
• Arthritis74%
• High cholesterol73%
• Diabetes41%
• Anxiety31%
• Depression30%

Hospitals where Zafar S. Khan works

Medicare's Facility Affiliation Data lists Zafar S. Khan 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
• Memorialcare Orange Coast Medical CenterFountain Valley, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050678
• UCI Health-OrangeOrange, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050348

Practice locations

Addresses where Zafar S. Khan is enrolled with Medicare (CMS data updated October 2, 2026).

• 22 Odyssey, Suite 205Irvine, CA 92618 (949) 586‑3200
• 8700 Warner Ave, Suite 140Fountain Valley, CA 92708 (714) 850‑7300
• 8740 Warner AveFountain Valley, CA 92708 (714) 850‑7300

Group practices

Medicare enrollment lists Zafar S. Khan as a member of this group (CMS data updated October 2, 2026).

• Orthowest47 clinicians in the group

Specialties

• Orthopedic Surgeryprimary

Find other Orthopedic Surgery doctors in California →

Other orthopedic surgeons in Irvine

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

• Taylor R. Dunphy, MD
• Casey A. Slattery, MD
• Richard Blanks, MD
• Payam Farjoodi, MD
• Jay J. Patel, MD
• Joseph E. Koressel, MD
• Kenneth L. Chambers, MD
• Nader A. Nassif, MD

All orthopedic surgeons in Irvine →

Other clinicians in Orthowest

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

• Nimish R. Kadakia, MD
• Ajay Gurbani, MD
• Eunji Back, PA
• Ritt Rungsisullatanont, PA
• Richard Blanks, MD
• Lizeth Rivera, OT

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