Steve Namsinh

Medicare activity in 2024

Official CMS public-use data for Steve Namsinh, 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. Injection of anesthetic agent and/or steroid into thigh nerve (femoral nerve) (64447)16 services
2. Anesthesia for procedure for total knee joint replacement (01402)15 services
3. Ultrasonic guidance for needle placement (76942)11 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%
• Arthritis72%
• Ischemic heart disease36%
• Diabetes27%
• Depression24%

Hospitals where Steve Namsinh works

Medicare's Facility Affiliation Data lists Steve Namsinh 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.

• UCI Health-OrangeOrange, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050348

Practice locations

Addresses where Steve Namsinh is enrolled with Medicare (CMS data updated October 2, 2026).

• 17100 Euclid StFountain Valley, CA 92708 (714) 966‑7200
• 3751 Katella AveLos Alamitos, CA 90720 (562) 598‑1311

Group practices

Medicare enrollment lists Steve Namsinh as a member of these groups (CMS data updated October 2, 2026).

• Orange Coast Anesthesia Inc87 clinicians in the group
• Premiercare Anesthesia Fountain Valley Inc10 clinicians in the group

Specialties

• Anesthesiologyprimary

Find other Anesthesiology doctors in California →

Other anesthesiologists in Fountain Valley

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

• Elsa A. Tekle, MD
• Tanzhen J. Wu, MD
• Robert K. Hoo, MD
• David Nguyen, DO
• Joseph D. Mollner, MD
• Bharat V. Merai, MD
• Reham A. Hassan, DO
• Benjamin T. Ho, MD

All anesthesiologists in Fountain Valley →

Other clinicians in Orange Coast Anesthesia Inc

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

• Achit B. Patel, DO
• Natalie S. Chen, MD
• James C. Chang, MD
• Navid Farahmand, MD
• Elsa A. Tekle, MD
• Ali Manoochehrian, 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