Gary R. Duckwiler, MD

Medicare activity in 2024

Official CMS public-use data for Gary R. Duckwiler, 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. Insertion of tube into intracranial artery for diagnosis or treatment with review by radiologist (36223)19 services
2. New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more (99205)17 services
3. Insertion of tube into brain artery for diagnosis or treatment with review by radiologist (36226)16 services
4. Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes (99152)14 services
5. Insertion of tube into internal neck artery for diagnosis or treatment with review by radiologist (36224)12 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%
• Arthritis55%
• Ischemic heart disease47%
• Diabetes43%
• Anxiety43%

Hospitals where Gary R. Duckwiler works

Medicare's Facility Affiliation Data lists Gary R. Duckwiler 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.

• Memorialcare Long Beach Medical CenterLong Beach, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: not listed by Medicare · CCN 050485
• Ronald Reagan UCLA Medical CenterLos Angeles, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050262

Practice locations

Addresses where Gary R. Duckwiler is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.

• 2801 Atlantic AveLong Beach, CA 90806 (562) 933‑1554
• 2865 Atlantic Ave, Suite 104Long Beach, CA 90806 (562) 933‑1820
• 300 UCLA Medical Plz, Suite B130Los Angeles, CA 90095 (310) 206‑0456
• 722 Baker StCosta Mesa, CA 92626 (714) 557‑6300
• 7300 Medical Ctr DrWest Hills, CA 91307 (818) 676‑4000

Group practices

Medicare enrollment lists Gary R. Duckwiler as a member of these groups (CMS data updated October 2, 2026).

• Memorialcare Medical Foundation566 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 Long Beach

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

• Alvin Wyatt, MD
• Jonathan Fournier, MD
• Sam Zeim, MD
• Satoshi Tateshima, MD
• Noureddin Nourmohammadi, MD
• Haddy M. Jarmakani, DO
• Shams F. Sheikh, MD
• Nancy Keroles, MD

All radiologists in Long Beach →

Other clinicians in Memorialcare Medical Foundation

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

• Ivan Rudenko, MD
• Rex F. Tjoa, NP
• Tiffany J. Chen, MD
• Jack F. Jacoub, MD
• Bhavana Pathak, MD
• Jun Liu, 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