Andreea A. Nanci, MD

Medicare activity in 2024

Official CMS public-use data for Andreea A. Nanci, 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 high level of medical decision making, if using time, 40 minutes or more (99215)759 services
2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)55 services
3. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)32 services
4. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)30 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%
• High blood pressure65%
• Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)55%
• Arthritis51%
• Osteoporosis35%
• Ischemic heart disease27%

Hospitals where Andreea A. Nanci works

Medicare's Facility Affiliation Data lists Andreea A. Nanci 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
• UCI Health-OrangeOrange, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050348

Practice locations

Addresses where Andreea A. Nanci is enrolled with Medicare (CMS data updated October 2, 2026).

• 101 the City Dr SOrange, CA 92868

Group practices

Medicare enrollment lists Andreea A. Nanci as a member of this group (CMS data updated October 2, 2026).

• UC Regents319 clinicians in the group

Specialties

• Internal Medicineprimary
• Hematologyalso

Find other Internal Medicine doctors in California →

Other internal medicine doctors in Orange

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

• Alexander R. Watson, MD
• Shruti K. Gohil, MD
• William E. Karnes Jr., MD
• Erik J. Geiger, MD
• Alpesh N. Amin, MD
• Andy L. Lin, MD
• Kevin M. Chow, MD
• Astrid I. Carrion Rodriguez, MD

All internal medicine doctors in Orange →

Other clinicians in UC Regents

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

• Shruti K. Gohil, MD
• William E. Karnes Jr., MD
• Katarina Veskovic, MD
• Theodore R. Pak, MD
• Jacqueline H. Kim
• Vanna Wu

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