NPPES file of Aug 9, 2026

Sammy Mohamed Ashouri, M.D.

Radiation Oncology Physician · Stanford, CA

Sammy Mohamed Ashouri, M.D. is a radiation oncology physician with a practice address in Stanford, California, and NPI 1871906396, issued on Jun 3, 2014. Check the license (California A160913, 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
1871906396
Name
Sammy Mohamed Ashouri
Credential
M.D.
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
A160913 CA
Self-reported in NPPES; status is on the state search
Practice location
300 Pasteur Dr RM H1330, Stanford, CA 94305
Phone
(650) 725-1812
Enumerated
Jun 3, 2014
Record last updated
Sep 25, 2024
Medicare enrollment
Enrolled (PECOS I20240706000025); accepts Medicare assignment
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 300 Pasteur Dr RM H1330

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

  1. Zainub Dhanani, MDStudent in an Organized Health Care Education/Training Program1932901501

Verify Sammy Mohamed Ashouri in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A160913
    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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Industry payments in 2024: $107.69

1 payment: food and beverage; the largest payer was Medtronic, Inc. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Sammy Ashouri$107.69
  2. Specialty average$1,897.85

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

Bills Medicare through 6 group practices

  1. California Managed Imaging Medical Group IncFt Lauderdale, FL
  2. Dhew Ind Hlth SV Hlth Svs And Mntl Hlth AdmPhoenix, AZ
  3. Dhhs Ihs Phoenix AreaParker, AZ
  4. Dhhs Phs Naihs Chinle Comprehensive Health Care FacilityPinon, AZ
  5. Dhhs,phs,naihs, Gallup Indian Medical CenterGallup, NM
  6. Gila River Health Care CorporationSacaton, AZ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Sammy Mohamed Ashouri among 735 radiation oncology physician records in California

Sammy Mohamed Ashouri, M.D. is one of 735 radiation 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 2014, is newer than 79% of them.

  • NPI issued2014 · 79% of these records are older, 18% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated2019 · median 2005 among the 545 with a school on file
  • Record last updated2024 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

43 radiation oncology physician records list a practice address in Stanford

They are 43 of the 5,606 NPPES records with a practice address in Stanford, and 735 radiation oncology physician records in California.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Mark Buyyounouski, M.D.Stanford, CA 943051912927021
  2. Sarah Donaldson, M.D.Stanford, CA 943051033276316
  3. Steven Hancock, M.D.Stanford, CA 943051821136631
  4. Wendy Hara, M.D.Stanford, CA 943051437343076
  5. Richard Hoppe, M.D.Stanford, CA 943051730221821
  6. Kathleen Horst, M.D.Stanford, CA 943051144385386
  7. Daniel Kapp, MDStanford, CA 943051063550747
  8. Elizabeth Kidd, M.D.Stanford, CA 943051760508899

Common questions

What is Sammy Mohamed Ashouri, M.D.'s NPI number?

Sammy Mohamed Ashouri, M.D.'s National Provider Identifier (NPI) is 1871906396, issued on Jun 3, 2014. An NPI identifies a provider in billing; it is not a license.

Where is Sammy Mohamed Ashouri, M.D. located?

The NPPES record lists a practice address at 300 Pasteur Dr RM H1330, Stanford, CA, 94305. Phone: (650) 725-1812. Providers update this record themselves, so call before visiting.

How can I verify Sammy Mohamed Ashouri, M.D.'s license?

NPPES lists California license number A160913, 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.