NPPES file of Aug 9, 2026

Benjamin Arthur Humphers Smith, MD, PHD

Surgery Physician · Stanford, CA

Benjamin Arthur Humphers Smith, MD, PHD is a surgery physician with a practice address in Stanford, California, and NPI 1932804804, issued on Mar 31, 2023. Check the license (California 11747, 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
1932804804
Name
Benjamin Arthur Humphers Smith
Credential
MD, PHD
Primary taxonomy
Surgery Physician 208600000X
License number
11747 CA
Self-reported in NPPES; status is on the state search
Practice location
300 Pasteur Dr RM H3591, Stanford, CA 94305
Phone
(650) 725-2181
Enumerated
Mar 31, 2023
Record last updated
Feb 20, 2024
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 300 Pasteur Dr RM H3591

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

  1. Branden Barger, MD, MASStudent in an Organized Health Care Education/Training Program1043911092
  2. Andrew Chiu, MD, PHDSurgery Physician1730765405
  3. Jaime Dutton, MDSurgery Physician1861611725
  4. Arash FereydooniStudent in an Organized Health Care Education/Training Program1578182762
  5. Jacob Guorgui, MDStudent in an Organized Health Care Education/Training Program1033855077
  6. Booyeon Han, MD, PHDStudent in an Organized Health Care Education/Training Program1194469239

Verify Benjamin Arthur Humphers Smith in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 11747
    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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54% fewer Medicare Part D claims than the average surgery physician in 2024

67 Medicare Part D claims for 37 beneficiaries, against an average of 147 among the 20,115 providers of this specialty who prescribed in Part D. 24 claims were for opioids.

  1. Benjamin Smith67
  2. Specialty average147

Most prescribed

  1. Oxycodone Hcl20 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.

Benjamin Arthur Humphers Smith among 3,118 surgery physician records in California

Benjamin Arthur Humphers Smith, MD, PHD is one of 3,118 surgery physician records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 98% of them.

  • NPI issued2023 · 98% of these records are older, 2% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileNo · 61% of these records are
  • Record last updated2024 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208600000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

47 surgery physician records list a practice address in Stanford

They are 47 of the 5,606 NPPES records with a practice address in Stanford, and 3,118 surgery physician records in California.

The 8 surgery physician records with the nearest ZIP codes

  1. Mona Beaunoyer, MDStanford, CA 943051750314506
  2. Stephan Busque, MDStanford, CA 943051508891052
  3. Waldo Concepcion, MDStanford, CA 943051770518870
  4. Myriam Curet, M.D.Stanford, CA 943051912093550
  5. Jaime Dutton, MDStanford, CA 943051861611725
  6. Abigail Hoffman, MDStanford, CA 943051336391929
  7. Stefanie Jeffrey, MDStanford, CA 943051326174285
  8. Byrne Lee, MDPalo Alto, CA 943051134137110

Common questions

What is Benjamin Arthur Humphers Smith, MD, PHD's NPI number?

Benjamin Arthur Humphers Smith, MD, PHD's National Provider Identifier (NPI) is 1932804804, issued on Mar 31, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Benjamin Arthur Humphers Smith, MD, PHD located?

The NPPES record lists a practice address at 300 Pasteur Dr RM H3591, Stanford, CA, 94305. Phone: (650) 725-2181. Providers update this record themselves, so call before visiting.

How can I verify Benjamin Arthur Humphers Smith, MD, PHD's license?

NPPES lists California license number 11747, 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 Benjamin Arthur Humphers Smith, MD, PHD prescribe under Medicare Part D?

In 2024, Benjamin Arthur Humphers Smith, MD, PHD had 67 Medicare Part D claims for 37 beneficiaries; the average among surgery physician prescribers was 147. 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.