Leah Y. Nakamura, MD

Medicare activity in 2024

Official CMS public-use data for Leah Y. Nakamura, 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, onabotulinumtoxina, 1 unit (J0585)3,600 services
2. Injection, heparin sodium, per 1000 units (J1644)3,520 services
3. Automated urinalysis test (81003)1,476 services
4. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)771 services
5. Ultrasound measurement of bladder capacity after voiding (51798)753 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 pressure70%
• Arthritis58%
• Osteoporosis34%
• Anxiety28%
• Depression25%

Hospitals where Leah Y. Nakamura works

Medicare's Facility Affiliation Data lists Leah Y. Nakamura 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
• Memorialcare Orange Coast Medical CenterFountain Valley, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050678

Practice locations

Addresses where Leah Y. Nakamura is enrolled with Medicare (CMS data updated October 2, 2026).

• 10110 Adams AveHuntington Beach, CA 92646 (949) 855‑1101
• 16305 Sand Canyon Ave, Suite 200Irvine, CA 92618 (949) 855‑1101
• 23961 Calle De La Magdalena, Suite 500Laguna Hills, CA 92653 (949) 855‑1101
• 26691 Plaza, Suite 120Mission Viejo, CA 92691 (949) 855‑1101

Group practices

Medicare enrollment lists Leah Y. Nakamura as a member of this group (CMS data updated October 2, 2026).

• Orange County Urology Associates Inc a Medical Group20 clinicians in the group

Specialties

• Urologyprimary

Find other Urology doctors in California →

Other urologists in Huntington Beach

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

• Lauren E. Fanning, MD
• Moses Kim, MD
• Josh M. Randall, MD
• Tammy S. Ho, MD
• Karan J. Singh, MD
• Aaron A. Spitz, MD
• Paul J. Oh, MD
• James P. Meaglia, MD

All urologists in Huntington Beach →

Other clinicians in Orange County Urology Associates Inc a Medical Group

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

• Michael Bui, NP
• Moses Kim, MD
• Josh M. Randall, MD
• Tammy S. Ho, MD
• Poone Shoureshi, MD
• Aaron A. Spitz, 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