NPPES file of Aug 9, 2026

Rustin A. Massoudi, MD

Urology Physician · Stanford, CA

Rustin A. Massoudi, MD is a urology physician with a practice address in Stanford, California, and NPI 1861836843, issued on Apr 22, 2013. Check the license (California A131914, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1861836843
Name
Rustin A. Massoudi
Credential
MD
Primary taxonomy
Urology Physician 208800000X
License number
A131914 CA
Self-reported in NPPES; status is on the state search
Practice location
300 Pasteur Dr, Stanford, CA 94305
Phone
(650) 723-4000
Enumerated
Apr 22, 2013
Record last updated
May 2, 2024
Medicare enrollment
Enrolled (PECOS I20191016003064); 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 300 Pasteur Dr

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

  1. Cooper Aakhus, MDEmergency Medicine Physician1194351007
  2. Oliver Aalami, M.D.Vascular Surgery Physician1225229024
  3. Alistair Aaronson, MDInternal Medicine Physician1457628760
  4. Sumaira Aasi, MDMOHS-Micrographic Surgery Physician1780675181
  5. Fahim Abbasi, M.D.Internal Medicine Physician1841484037
  6. Mohamad Abbass, MDNeurological Surgery Physician1679492151

Verify Rustin A. Massoudi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A131914
    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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22% fewer Medicare Part D claims than the average urology physician in 2024

1,051 Medicare Part D claims for 331 beneficiaries, against an average of 1,340 among the 10,782 providers of this specialty who prescribed in Part D.

  1. Rustin Massoudi1,051
  2. Specialty average1,340

Most prescribed

  1. Tamsulosin Hcl369 claims
  2. Finasteride287 claims
  3. Myrbetriq54 claims
  4. Alfuzosin Hcl Er45 claims
  5. Nitrofurantoin Mono-Macro44 claims
  6. Doxazosin Mesylate33 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 76.5 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score74.3
  2. Costout of 100 · 30%44.0
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $1,413.85

12 payments; by number, the most common kind was food and beverage; the largest payer was Edap Technomed Inc. The 9,340 providers of this specialty with any payment received $3,800.04 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Rustin Massoudi$1,413.85
  2. Specialty average$3,800.04

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

Bills Medicare through one group practice

  1. 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).

Rustin A. Massoudi among 1,524 urology physician records in California

Rustin A. Massoudi, MD is one of 1,524 urology 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 2013, is newer than 75% of them.

  • NPI issued2013 · 75% of these records are older, 22% newer
  • In a Medicare fileYes · 82% of these records are
  • In the CMS Doctors and Clinicians fileYes · 69% of these records are
  • Graduated2013 · median 2003 among the 1,049 with a school on file
  • 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 208800000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Urology Physician providers in California

There are 1,524 urology physician records in California.

The 8 urology physician records with the nearest ZIP codes

  1. Jennifer Abidari, MDStanford, CA 943051811098197
  2. Rodney Anderson, MDStanford, CA 943051265443246
  3. James Brooks, MDStanford, CA 943051043320005
  4. Benjamin Chung, M.D.Stanford, CA 943051205945920
  5. Craig Comiter, MDStanford, CA 943051780657171
  6. Michael Eisenberg, MDStanford, CA 943051508999749
  7. Harcharan Gill, MDStanford, CA 943051326152422
  8. Vanessa Gulla, M.D.Stanford, CA 943051376648279

Common questions

What is Rustin A. Massoudi, MD's NPI number?

Rustin A. Massoudi, MD's National Provider Identifier (NPI) is 1861836843, issued on Apr 22, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Rustin A. Massoudi, MD located?

The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.

How can I verify Rustin A. Massoudi, MD's license?

NPPES lists California license number A131914, 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 Rustin A. Massoudi, MD prescribe under Medicare Part D?

In 2024, Rustin A. Massoudi, MD had 1,051 Medicare Part D claims for 331 beneficiaries; the average among urology physician prescribers was 1,340. Part D covers Medicare prescriptions only.

What is Rustin A. Massoudi, MD's MIPS final score?

The 2023 MIPS final score is 76.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.