Thuong Nguyen, M.D.
Allergy & Immunology Physician · Visalia, CA
Thuong Nguyen, M.D. is an allergy & immunology physician with a practice address in Visalia, California, and NPI 1831196294, issued on Jun 30, 2005. Check the license (California G77992, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Thuong Nguyen
- Credential
- M.D.
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- G77992 CA
Self-reported in NPPES; status is on the state search - Practice location
- 5400 W Hillsdale Ave, Visalia, CA 93291
- Phone
- (559) 738-7593
- Enumerated
- Jun 30, 2005
- Record last updated
- Oct 3, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (559) 625-2610
- Medicare enrollment
- Enrolled (PECOS I20080918000155); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 5400 W Hillsdale Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Chonny AndersonFamily Nurse Practitioner1912618562
- Ashkan Attaran, M.D.Cardiovascular Disease Physician1194043042
- Rhett Beattie, FNPFamily Nurse Practitioner1528336435
- Craig Calloway, M.D.Otolaryngology Physician1154327153
- Kristal Calloway, AUDIOLOGISTAudiologist1194999557
- Joseph Chidi, M.D.Urology Physician1366448318
Verify Thuong Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G77992Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average allergy & immunology physician in 2024
1,599 Medicare Part D claims for 239 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.
Most prescribed
- Azelastine Hcl233 claims
- Montelukast Sodium220 claims
- Fluticasone Propionate131 claims
- Ipratropium Bromide122 claims
- Prednisone76 claims
- Albuterol Sulfate Hfa72 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 MIPS final score for 2023 (Medicare payment program): 97.1 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,984.59
93 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 2,496 providers of this specialty with any payment received $8,321.81 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
- Adventist Health Physicians NetworkHanford, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Allergy & Immunology Physician providers in California
There are 444 allergy & immunology physician records in California.
Other allergy & immunology physician records in California
- Edsel Abud, MD, PHDLa Jolla, CA1891257192
- Seema Aceves, M.D., PH.D.San Diego, CA1366511628
- Terrie Ahn, MDSanta Monica, CA1093166795
- Rhonda Alkatib, M.D.San Diego, CA1417363086
- Mercedes Amado, M.D.San Diego, CA1477510287
- Loula Amin, M.D.Newport Beach, CA1043452782
- A Aminian, M.D.Fresno, CA1508080193
- Ali Amirzadeh, M.D.Sacramento, CA1083748685
- Lorraine Anderson, MDSanta Monica, CA1013209568
- Joshua Ang, DOPasadena, CA1699398016
Common questions
What is Thuong Nguyen, M.D.'s NPI number?
Thuong Nguyen, M.D.'s National Provider Identifier (NPI) is 1831196294, issued on Jun 30, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Thuong Nguyen, M.D. located?
The NPPES record lists a practice address at 5400 W Hillsdale Ave, Visalia, CA, 93291. Phone: (559) 738-7593. Providers update this record themselves, so call before visiting.
How can I verify Thuong Nguyen, M.D.'s license?
NPPES lists California license number G77992, 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 Thuong Nguyen, M.D. prescribe under Medicare Part D?
In 2024, Thuong Nguyen, M.D. had 1,599 Medicare Part D claims for 239 beneficiaries; the average among allergy & immunology physician prescribers was 741. Part D covers Medicare prescriptions only.
What is Thuong Nguyen, M.D.'s MIPS final score?
The 2023 MIPS final score is 97.1 of 100. 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.