Andrea S. Oh, MD

Medicare activity in 2024

Official CMS public-use data for Andrea S. Oh, 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. Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)23,715 services
2. Ct scan of chest without contrast (71250)785 services
3. X-ray of chest, 1 view (71045)572 services
4. Ct scan of chest with contrast (71260)455 services
5. X-ray of chest, 2 views (71046)297 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%
• Arthritis54%
• Ischemic heart disease47%
• Diabetes36%
• COPD34%

Hospitals where Andrea S. Oh works

Medicare's Facility Affiliation Data lists Andrea S. Oh 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.

• Martin Luther King, Jr. Community HospitalLos Angeles, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050779
• Ronald Reagan UCLA Medical CenterLos Angeles, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050262
• Santa Monica - UCLA Medical Center & Orthopaedic HospitalSanta Monica, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050112
• UCLA West Valley Medical CenterWest Hills, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050481

Practice locations

Addresses where Andrea S. Oh is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 27; the Medicare profile lists all.

• 100 Medical PlazaLos Angeles, CA 90095 (310) 301‑6800
• 100 Medical Plaza, Suite 170Los Angeles, CA 90095 (310) 319‑1234
• 100 Moody CtThousand Oaks, CA 91360 (805) 418‑3500
• 1260 15th St, Suite 111Santa Monica, CA 90404 (310) 393‑5153
• 135 E Compton BlvdCompton, CA 90220 (424) 338‑8790

Group practices

Medicare enrollment lists Andrea S. Oh as a member of these groups (CMS data updated October 2, 2026).

• Martin Luther King Jr Community Medical Foundation206 clinicians in the group
• UCLA Radiology Medical Group202 clinicians in the group

Specialties

• Diagnostic Radiologyprimary

Find other Diagnostic Radiology doctors in California →

Other radiologists in Los Angeles

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

• Eric K. Lee, MD
• Mariapia Altavilla, MD
• Nimit G. Dholakia, MD
• Julia Tran, MD
• Phuc H. Pham, MD
• Saveen G. Ahuja, MD
• John P. Fantauzzi, MD
• Shahnaz G. Ghahremani-Koureh, MD

All radiologists in Los Angeles →

Other clinicians in Martin Luther King Jr Community Medical Foundation

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

• Leon Rovner, MD
• Julia Tran, MD
• Sarah Ameri
• Allyssa N. Schik, MD
• Ely R. Felker, MD
• Ana M. Maliglig, 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