Henry Ow-Yong, M.D.
Internal Medicine Physician · Visalia, CA
Henry Ow-Yong, M.D. is an internal medicine physician with a practice address in Visalia, California, and NPI 1154435428, issued on Aug 17, 2006. Check the license (California A88630, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Henry Ow-Yong
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A88630 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2611 N Dinuba Blvd, Visalia, CA 93291
- Phone
- (559) 733-6348
- Enumerated
- Aug 17, 2006
- Record last updated
- Dec 18, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicaid ID
- 00A866300 CA
- Medicare enrollment
- Enrolled (PECOS I20050720001222); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 2611 N Dinuba Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Henry Ow-Yong in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A88630Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
50% more Medicare Part D claims than the average internal medicine physician in 2024
4,767 Medicare Part D claims for 240 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 572 claims were for opioids.
Most prescribed
- Hydrocodone-Acetaminophen303 claims
- Atorvastatin Calcium235 claims
- Amlodipine Besylate175 claims
- Albuterol Sulfate Hfa169 claims
- Gabapentin168 claims
- Omeprazole138 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $275.83
8 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- County OF TulareVisalia, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Henry Ow-Yong among 17,696 internal medicine physician records in California
Henry Ow-Yong, M.D. is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 56% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated1981 · median 2004 among the 11,065 with a school on file
- Record last updated2020 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
58 internal medicine physician records list a practice address in Visalia
They are 58 of the 4,225 NPPES records with a practice address in Visalia, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Visalia → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Chawki Gerges, M.D.Visalia, CA 932911982600946
- Lawrence Ginsberg, M.D.Visalia, CA 932911326044181
- Bruce Hall, M.D.Visalia, CA 932911720085251
- Thanit Hasadsri, M.D.Visalia, CA 932911346334687
- Monica Manga, M.D.Visalia, CA 932911669479630
- Olayinka Omololu, MDVisalia, CA 932911861445470
- Angela Pap, M.D.Visalia, CA 932911477550838
- Nauman Qureshi, M.D.Visalia, CA 932911578577177
Common questions
What is Henry Ow-Yong, M.D.'s NPI number?
Henry Ow-Yong, M.D.'s National Provider Identifier (NPI) is 1154435428, issued on Aug 17, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Henry Ow-Yong, M.D. located?
The NPPES record lists a practice address at 2611 N Dinuba Blvd, Visalia, CA, 93291. Phone: (559) 733-6348. Providers update this record themselves, so call before visiting.
How can I verify Henry Ow-Yong, M.D.'s license?
NPPES lists California license number A88630, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Henry Ow-Yong, M.D. prescribe under Medicare Part D?
In 2024, Henry Ow-Yong, M.D. had 4,767 Medicare Part D claims for 240 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.