NPPES file of Aug 9, 2026

Alexander Darwin Vuong Pham, M.D.

Medical Oncology Physician · San Jose, CA

Alexander Darwin Vuong Pham, M.D. is a medical oncology physician with a practice address in San Jose, California, and NPI 1487807111, issued on Oct 26, 2008. Check the license (California A112936, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1487807111
Name
Alexander Darwin Vuong Pham
Credential
M.D.
Primary taxonomy
Medical Oncology Physician 207RX0202X
License number
A112936 CA
Self-reported in NPPES; status is on the state search
Practice location
2589 Samaritan Dr, San Jose, CA 95124
Phone
(408) 426-4900
Enumerated
Oct 26, 2008
Record last updated
Apr 16, 2024
Medicare enrollment
Enrolled (PECOS I20110809000890); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 2589 Samaritan Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Rajeshwari Ayyar, MDMedical Oncology Physician1871670703
  2. Teja Bedi, MDMedical Oncology Physician1871777573
  3. Elwyn Cabebe, MDMedical Oncology Physician1821067281
  4. Peter Galatin, M.D., PH.D.Medical Oncology Physician1942311386
  5. Gwendolyn Ho, MDHematology (Internal Medicine) Physician1487970547
  6. Priya Kumaravelu, MDMedical Oncology Physician1154514677

Verify Alexander Darwin Vuong Pham in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A112936
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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51% fewer Medicare Part D claims than the average medical oncology physician in 2024

345 Medicare Part D claims for 92 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D.

  1. Alexander Pham345
  2. Specialty average703

Most prescribed

  1. Anastrozole50 claims
  2. Eliquis27 claims
  3. Dexamethasone25 claims
  4. Prednisone25 claims
  5. Abiraterone Acetate20 claims
  6. Hydroxyurea19 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: $160.83

3 payments; by number, the most common kind was food and beverage; the largest payer was Bayer Healthcare Pharmaceuticals Inc. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Alexander Pham$161
  2. Specialty average$11,773

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

One hospital affiliation

  1. Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

Alexander Darwin Vuong Pham among 447 medical oncology physician records in California

Alexander Darwin Vuong Pham, M.D. is one of 447 medical oncology physician records with a practice address in California. 82% 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, 38% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2008 · median 2004 among the 312 with a school on file
  • Record last updated2024 · 41% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Oncology Physician providers in California

There are 447 medical oncology physician records in California.

The 8 medical oncology physician records with the nearest ZIP codes

  1. Rajeshwari Ayyar, MDSan Jose, CA 951241871670703
  2. Teja Bedi, MDSan Jose, CA 951241871777573
  3. Hinda Boutrid, MDSan Jose, CA 951241457796070
  4. Elwyn Cabebe, MDSan Jose, CA 951241821067281
  5. Thomas Chen, MDSan Jose, CA 951241891870317
  6. Peter Galatin, M.D., PH.D.San Jose, CA 951241942311386
  7. Priya Kumaravelu, MDSan Jose, CA 951241154514677
  8. George Labban, M.D.San Jose, CA 951241114925542

Common questions

What is Alexander Darwin Vuong Pham, M.D.'s NPI number?

Alexander Darwin Vuong Pham, M.D.'s National Provider Identifier (NPI) is 1487807111, issued on Oct 26, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Alexander Darwin Vuong Pham, M.D. located?

The NPPES record lists a practice address at 2589 Samaritan Dr, San Jose, CA, 95124. Phone: (408) 426-4900. Providers update this record themselves, so call before visiting.

How can I verify Alexander Darwin Vuong Pham, M.D.'s license?

NPPES lists California license number A112936, 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 Alexander Darwin Vuong Pham, M.D. prescribe under Medicare Part D?

In 2024, Alexander Darwin Vuong Pham, M.D. had 345 Medicare Part D claims for 92 beneficiaries; the average among medical oncology physician prescribers was 703. 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.