Mason Hieu Phan
Diagnostic Radiology Physician · Loma Linda, CA
Mason Hieu Phan is a diagnostic radiology physician with a practice address in Loma Linda, California, and NPI 1639757032, issued on Mar 29, 2021. Check the license (California A182123, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mason Hieu Phan
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- A182123 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11234 Anderson Street, Loma Linda, CA 92354
- Phone
- (909) 558-4000
- Enumerated
- Mar 29, 2021
- Record last updated
- Feb 11, 2026
- Medicare enrollment
- Enrolled (PECOS I20260529004059); may accept Medicare assignment
- Medical or professional school
- Georgetown University School Of Medicine, 2021
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 4,500 in California → Look up another NPI →
Also registered at 11234 Anderson Street
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Adel Alset, MDStudent in an Organized Health Care Education/Training Program1184476970
- Ronald Anthony, NPFamily Nurse Practitioner1902363112
- Rahma Arafa, MDStudent in an Organized Health Care Education/Training Program1992400550
- Alanna Asgeirsson, MDStudent in an Organized Health Care Education/Training Program1306535372
Verify Mason Hieu Phan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A182123Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $269.52
5 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 8,048 providers of this specialty with any payment received $2,488.38 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.
Mason Hieu Phan among 4,500 diagnostic radiology physician records in California
Mason Hieu Phan is one of 4,500 diagnostic radiology physician records with a practice address in California. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 97% of them.
- NPI issued2021 · 97% of these records are older, 2% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2021 · median 2004 among the 3,130 with a school on file
- Record last updated2026 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
74 diagnostic radiology physician records list a practice address in Loma Linda
They are 74 of the 4,863 NPPES records with a practice address in Loma Linda, and 4,500 diagnostic radiology physician records in California.
All 4,500 in California → Every provider in Loma Linda → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Sonia Dhaliwal, MDLoma Linda, CA 923541467491472
- Richard Dunbar, M.D.Loma Linda, CA 923541134152572
- Gerald Grube, M.D.Loma Linda, CA 923541609892959
- Bernard Hindman, M.D.Loma Linda, CA 923541659396935
- David Hinshaw, M.D.Loma Linda, CA 923541356367692
- J. Jacobson, M.D.Loma Linda, CA 923541801812904
- Thomas Kelly, MDLoma Linda, CA 923541760421432
- Daniel Kido, M.D.Loma Linda, CA 923541386660629
Common questions
What is Mason Hieu Phan's NPI number?
Mason Hieu Phan's National Provider Identifier (NPI) is 1639757032, issued on Mar 29, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Mason Hieu Phan located?
The NPPES record lists a practice address at 11234 Anderson Street, Loma Linda, CA, 92354. Phone: (909) 558-4000. Providers update this record themselves, so call before visiting.
How can I verify Mason Hieu Phan's license?
NPPES lists California license number A182123, 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.
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.