Jason V. Nguyen, MD

Medicare activity in 2024

Official CMS public-use data for Jason V. Nguyen, 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. Removal of cataract with insertion of prosthetic lens (66984)284 services
2. Established patient complete exam of visual system (92014)261 services
3. Measurement of corneal curvature and depth of eye (92136)204 services
4. Ct scan of cornea (92025)164 services
5. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)113 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%
• Arthritis50%
• Ischemic heart disease32%
• Diabetes30%
• Chronic kidney disease25%

Hospitals where Jason V. Nguyen works

Medicare's Facility Affiliation Data lists Jason V. Nguyen 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.

• Grady Memorial HospitalChickasha, OK · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 370054
• Holdenville General HospitalHoldenville, OK · Critical Access Hospital · Emergency services: listed by Medicare · CCN 371321
• Mercy Hospital Oklahoma City, IncOklahoma City, OK · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 370013
• Summit Medical Center, LLCEdmond, OK · Acute Care Hospital · Emergency services: listed by Medicare · CCN 370225

Practice locations

Addresses where Jason V. Nguyen is enrolled with Medicare (CMS data updated October 2, 2026).

• 4200 W Memorial Rd, Suite 101Oklahoma City, OK 73120 (405) 749‑4280
• 4214 SW Lee BlvdLawton, OK 73505 (580) 353‑5860

Group practices

Medicare enrollment lists Jason V. Nguyen as a member of these groups (CMS data updated October 2, 2026).

• RGH Eye Clinic PLLC6 clinicians in the group
• Jay C. Johnston, M. D., Inc2 clinicians in the group

Specialties

• Ophthalmologyprimary

Find other Ophthalmology doctors in Oklahoma →

Other ophthalmologists in Oklahoma City

Clinicians with the same Medicare primary specialty in Oklahoma City, OK — not a recommendation.

• Brian D. Morgan, MD
• Annie Moreau, MD
• Lance Scott, MD
• Adam Bleeker, MD
• Danlin J. Fuller, MD
• David W. Jackson, MD
• Nathan W. Liles, MD
• Diana E. Hampton, MD

All ophthalmologists in Oklahoma City →

Other clinicians in RGH Eye Clinic PLLC

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

• Carl Sylvester, MD
• Russell G. Hopkins, OD
• Deena A. Sylvester, 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