Zara L. Mahmud, MD

Medicare activity in 2024

Official CMS public-use data for Zara L. Mahmud, 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. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)358 services
2. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)88 services
3. Hospital discharge day management, more than 30 minutes (99239)87 services
4. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)35 services
5. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)22 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%
• Diabetes52%
• Depression49%
• Heart failure49%
• Arthritis48%

Hospitals where Zara L. Mahmud works

Medicare's Facility Affiliation Data lists Zara L. Mahmud 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.

• Providence St. Jude Medical CenterFullerton, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050168
• UCI Health-OrangeOrange, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050348

Practice locations

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

• 1211 W La Palma Ave, Suite 404Anaheim, CA 92801 (714) 772‑8282
• 13522 Newport Ave, Suite 102Tustin, CA 92780 (714) 573‑8200

Group practices

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

• Chest and Critical Care Consultants a Medical Group71 clinicians in the group

Specialties

• Family Practiceprimary

Find other Family Practice doctors in California →

Other family doctors in Anaheim

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

• Lance C. Brunner, MD
• Michael J. Valencia, DO
• Hannah Maria T. Barroga, DO
• Binh K. Nguyen, MD
• Ani A. Atoian, MD
• Octaviano Roges, MD
• Kelly M. Moquin, MD
• Charles P. Vega Jr., MD

All family doctors in Anaheim →

Other clinicians in Chest and Critical Care Consultants a Medical Group

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

• Anna S. Noble, MD
• Padmaja Gadadoss, NP
• Dan Q. Tran, MD
• Mohammed S. Qubba, MD
• Alvin M. Ha, DO
• Nguyen D. Dang, 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