Duane Y. Nii, MD

Medicare activity in 2024

Official CMS public-use data for Duane Y. Nii, 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 problem focused exam of visual system (92012)260 services
2. Established patient complete exam of visual system (92014)191 services
3. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)89 services
4. Exam of visual field with extended testing (92083)85 services
5. Imaging of optic nerve (92133)80 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%
• Arthritis45%
• Diabetes36%
• Ischemic heart disease30%
• Osteoporosis25%

Hospitals where Duane Y. Nii works

Medicare's Facility Affiliation Data lists Duane Y. Nii 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.

• Saint Agnes Medical CenterFresno, CA · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 050093

Practice locations

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

• 1360 E Herndon Ave, Suite 401Fresno, CA 93720 (559) 449‑5010

Group practices

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

• Fogg Remington Eyecare Inc18 clinicians in the group

Specialties

• Ophthalmologyprimary

Find other Ophthalmology doctors in California →

Other ophthalmologists in Fresno

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

• Sanket S. Shah, MD
• Thomas S. Shute, MD
• Steven G. Fogg, MD
• M Mehdi Ghajarnia, MD
• Richard Mendoza, MD
• Philip M. Kikuchi, MD
• Rodney Remington, MD
• William A. Maxwell, MD

All ophthalmologists in Fresno →

Other clinicians in Fogg Remington Eyecare Inc

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

• Etienne Sinquin, OD
• Heather A. Bowlin, OD
• Steven G. Fogg, MD
• Gloria C. Young, OD
• Rodney Remington, MD
• Atif B. Collins, 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