NPPES file of Aug 9, 2026

Simrunn Singh Girn, MD

Diagnostic Radiology Physician · Santa Clara, CA

Simrunn Singh Girn, MD is a diagnostic radiology physician with a practice address in Santa Clara, California, and NPI 1154826972, issued on Mar 25, 2018. Check the license (California A165867, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1154826972
Name
Simrunn Singh Girn
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
A165867 CA
Self-reported in NPPES; status is on the state search
Practice location
700 Lawrence Expy, Santa Clara, CA 95051
Phone
(408) 851-1000
Enumerated
Mar 25, 2018
Record last updated
Aug 8, 2025
Medicare enrollment
Enrolled (PECOS I20240403003388); accepts Medicare assignment
Medical or professional school
Drexel University College Of Medicine, 2018
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 700 Lawrence Expy

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

  1. Rose Abendroth, P.A-C PHDPhysician Assistant1568471126
  2. Joseph Adams, PHARMD.Pharmacist1851625024
  3. Netali AdielDoula1003770652
  4. Abdallah Al-ObaidiStudent in an Organized Health Care Education/Training Program1255133781
  5. Andrea Mae AlafrizPharmacist1770450967
  6. Andria AlbertStudent in an Organized Health Care Education/Training Program1992565493

Verify Simrunn Singh Girn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A165867
    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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2 hospitals and group practices

  1. Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars
  2. Permanente Medical Group IncSanta Clara, CA

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.

Simrunn Singh Girn among 4,500 diagnostic radiology physician records in California

Simrunn Singh Girn, MD 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 2018, is newer than 88% of them.

  • NPI issued2018 · 88% of these records are older, 9% newer
  • In a Medicare fileYes · 74% of these records are
  • In the CMS Doctors and Clinicians fileYes · 70% of these records are
  • Graduated2018 · median 2004 among the 3,130 with a school on file
  • Record last updated2025 · 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).

Diagnostic Radiology Physician providers in California

There are 4,500 diagnostic radiology physician records in California.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Nitin Athavale, MDSanta Clara, CA 950511568540144
  2. Brian Baker, MDSanta Clara, CA 950511689753717
  3. Olegario Lara, DOSanta Clara, CA 950511376575910
  4. Lawnie-Lyn Lau, MDSanta Clara, CA 950511326125287
  5. Sunhee Lee, MDSanta Clara, CA 950511588741417
  6. Ross Lulu, MDSanta Clara, CA 950511699852533
  7. Kathleen Marini, MDSanta Clara, CA 950511801968631
  8. Jonathan Mates, MDSanta Clara, CA 950511780762880

Common questions

What is Simrunn Singh Girn, MD's NPI number?

Simrunn Singh Girn, MD's National Provider Identifier (NPI) is 1154826972, issued on Mar 25, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Simrunn Singh Girn, MD located?

The NPPES record lists a practice address at 700 Lawrence Expy, Santa Clara, CA, 95051. Phone: (408) 851-1000. Providers update this record themselves, so call before visiting.

How can I verify Simrunn Singh Girn, MD's license?

NPPES lists California license number A165867, 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.