Wally Chau Huynh, MD
Internal Medicine Physician · Visalia, CA
Wally Chau Huynh, MD is an internal medicine physician with a practice address in Visalia, California, and NPI 1184895989, issued on Mar 19, 2008. Check the license (California A106097, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Wally Chau Huynh
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A106097 CA
Self-reported in NPPES; status is on the state search - Practice location
- 400 W Mineral King Ave, Visalia, CA 93291
- Phone
- (559) 624-2200
- Enumerated
- Mar 19, 2008
- Record last updated
- Jun 25, 2010 (not updated in 16 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20100309000782); 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 400 W Mineral King Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Wally Chau Huynh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A106097Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
150 Medicare Part D claims for 67 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 77.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $219.16
9 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Pharmaceuticals, Inc. 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
- Valley Hospitalist Medical Group, IncVisalia, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Wally Chau Huynh among 17,696 internal medicine physician records in California
Wally Chau Huynh, MD 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 2008, is newer than 56% of them.
- NPI issued2008 · 56% of these records are older, 40% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2005 · median 2004 among the 11,065 with a school on file
- Record last updated2010 · 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
- Henry Ow-Yong, M.D.Visalia, CA 932911154435428
- Angela Pap, M.D.Visalia, CA 932911477550838
Common questions
What is Wally Chau Huynh, MD's NPI number?
Wally Chau Huynh, MD's National Provider Identifier (NPI) is 1184895989, issued on Mar 19, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Wally Chau Huynh, MD located?
The NPPES record lists a practice address at 400 W Mineral King Ave, Visalia, CA, 93291. Phone: (559) 624-2200. Providers update this record themselves, so call before visiting.
How can I verify Wally Chau Huynh, MD's license?
NPPES lists California license number A106097, 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 Wally Chau Huynh, MD prescribe under Medicare Part D?
In 2024, Wally Chau Huynh, MD had 150 Medicare Part D claims for 67 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
What is Wally Chau Huynh, MD's MIPS final score?
The 2023 MIPS final score is 77.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.