Van Thomas Nguyen, M.D.
Hematology & Oncology Physician · Anaheim, CA
Van Thomas Nguyen, M.D. is a hematology & oncology physician with a practice address in Anaheim, California, and NPI 1922442557, issued on Apr 25, 2013. Check the license (California A142745, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Van Thomas Nguyen
- Credential
- M.D.
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A142745 CA
Self-reported in NPPES; status is on the state search - Practice location
- 3430 E LA Palma Ave, Anaheim, CA 92806
- Phone
- (714) 369-3656
- Enumerated
- Apr 25, 2013
- Record last updated
- Dec 3, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20190909001067); accepts Medicare assignment
- Medical or professional school
- Vanderbilt University School Of Medicine, 2013
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 3430 E LA Palma Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- James Delk, PHARM.DPharmacist1205374212
- John Fan, MDCardiovascular Disease Physician1114129954
- Teresa GallegoClinical Social Worker1073063764
- Anna Galyean, MDMaternal & Fetal Medicine Physician1093814022
Verify Van Thomas Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A142745Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5% more Medicare Part D claims than the average hematology & oncology physician in 2024
925 Medicare Part D claims for 152 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. 33 claims were for opioids.
Most prescribed
- Lenalidomide126 claims
- Hydroxyurea78 claims
- Abiraterone Acetate74 claims
- Dexamethasone59 claims
- Acyclovir53 claims
- Nivestym36 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.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupAnaheim, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Van Thomas Nguyen among 1,583 hematology & oncology physician records in California
Van Thomas Nguyen, M.D. is one of 1,583 hematology & oncology physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 79% of them.
- NPI issued2013 · 79% of these records are older, 19% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2013 · median 2003 among the 1,124 with a school on file
- Record last updated2021 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in Anaheim → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Navid Jamshidi, M.D.Anaheim, CA 928061053578526
- Devi Jane Asuncion, MDAnaheim, CA 928071538367875
- Ashraf Aziz, MDAnaheim, CA 928071386715365
- Farah Brasfield, MDAnaheim, CA 928071730256629
- David Choi, MDAnaheim, CA 928071760559629
- Thu-Tam Huynh, MDAnaheim, CA 928071144402348
- Thomas Lee, M.D.Anaheim, CA 928071891871869
- Swarajya Vemuri, MDAnaheim, CA 928071174671127
Common questions
What is Van Thomas Nguyen, M.D.'s NPI number?
Van Thomas Nguyen, M.D.'s National Provider Identifier (NPI) is 1922442557, issued on Apr 25, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Van Thomas Nguyen, M.D. located?
The NPPES record lists a practice address at 3430 E LA Palma Ave, Anaheim, CA, 92806. Phone: (714) 369-3656. Providers update this record themselves, so call before visiting.
How can I verify Van Thomas Nguyen, M.D.'s license?
NPPES lists California license number A142745, 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 Van Thomas Nguyen, M.D. prescribe under Medicare Part D?
In 2024, Van Thomas Nguyen, M.D. had 925 Medicare Part D claims for 152 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.