Quick answers
- Does Henry Ow-Yong accept Medicare assignment?
- Yes. Medicare's clinician data says Henry Ow-Yong 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 Henry Ow-Yong see?
- In 2024, CMS data shows 181 Original Medicare patients and 736 services for Henry Ow-Yong. This counts Original Medicare only and measures volume, not quality.
- What is Henry Ow-Yong's NPI number?
- 1154435428. 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 Henry Ow-Yong, 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 | 181 |
|---|---|
| Services billed to Medicare | 736 |
| Different services or procedures | 15 |
| Participating Medicare provider | Yes |
| Average age of these patients | 70 |
Most frequent services
- Blood glucose (sugar) test performed by hand-held instrument (82962)263 services
- Hemoglobin a1c level (83036)254 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)121 services
- Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)21 services
- Automated urinalysis test (81003)19 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%
- Diabetes75%
- Arthritis31%
- Chronic kidney disease29%
- Ischemic heart disease25%
Hospitals where Henry Ow-Yong works
Medicare's Facility Affiliation Data lists Henry Ow-Yong 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.
- Kaweah Health Medical CenterVisalia, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050057
Practice locations
Addresses where Henry Ow-Yong is enrolled with Medicare (CMS data updated October 2, 2026).
- 2611 N Dinuba BlvdVisalia, CA 93291 (559) 733‑6342
- 660 E Visalia RdFarmersville, CA 93223 (559) 594‑6788
Group practices
Medicare enrollment lists Henry Ow-Yong as a member of this group (CMS data updated October 2, 2026).
- County of Tulare32 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Visalia
Clinicians with the same Medicare primary specialty in Visalia, CA — not a recommendation.
Other clinicians in County of Tulare
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1981 (45 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1154435428 |
| 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