Quick answers
- Does Yungtai Kung accept Medicare assignment?
- Yes. Medicare's clinician data says Yungtai Kung accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Yungtai Kung see?
- In 2024, CMS data shows 1,014 Original Medicare patients and 6,194 services for Yungtai Kung. This counts Original Medicare only and measures volume, not quality.
- What is Yungtai Kung's NPI number?
- 1518300920. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Yungtai Kung, 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.
| Original Medicare patients | 1,014 |
|---|---|
| Services billed to Medicare | 6,194 |
| Different services or procedures | 35 |
| Participating Medicare provider | Yes |
| Average age of these patients | 78 |
Most frequent services
- Established patient complete exam of visual system (92014)1,120 services
- Established patient problem focused exam of visual system (92012)908 services
- Photography of the retina (92250)747 services
- Exam of visual field with extended testing (92083)562 services
- Imaging of optic nerve (92133)558 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%
- Arthritis44%
- Diabetes27%
- Ischemic heart disease22%
- Chronic kidney disease21%
Hospitals where Yungtai Kung works
Medicare's Facility Affiliation Data lists Yungtai Kung 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.
- Providence Queen of the Valley Medical CenterNapa, CA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 050009
Practice locations
Addresses where Yungtai Kung is enrolled with Medicare (CMS data updated October 2, 2026).
- 800 Trancas St, Suite ANapa, CA 94558 (707) 255‑6212
Group practices
Medicare enrollment lists Yungtai Kung as a member of this group (CMS data updated October 2, 2026).
- Eye Specialists Medical Group of Napa Valley Inc4 clinicians in the group
Specialties
- Ophthalmologyprimary
Other ophthalmologists in Napa
Clinicians with the same Medicare primary specialty in Napa, CA — not a recommendation.
Other clinicians in Eye Specialists Medical Group of Napa Valley Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | New York Medical College |
| Graduation year | 2013 (13 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518300920 |
| Corrections | Report an error or suggest an update → |
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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians