Shannon Michelle Gaffney, DO
Diagnostic Radiology Physician · Stanford, CA
Shannon Michelle Gaffney, DO is a diagnostic radiology physician with a practice address in Stanford, California, and NPI 1548459340, issued on Oct 17, 2007. Check the license (California 20A14319, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Shannon Michelle Gaffney
- Credential
- DO
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License numbers
- 20A14319 CA
269074 AZ
269074 MA
DO1774 NV
246397 NY
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Stanford, CA 94305
- Phone
- (650) 723-4000
- Enumerated
- Oct 17, 2007
- Record last updated
- Apr 9, 2024
- Medicare enrollment
- Enrolled (PECOS I20180313000255); may accept Medicare assignment
- Medical or professional school
- New York College Of Osteo Medicine Of New York Institute Of Technology, 2006
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 4,500 in California → Look up another NPI →
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Verify Shannon Michelle Gaffney in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A14319Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
4 hospitals and group practices
- Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars
- Bay Imaging Consultants Medical Group IncFairfield, CA
- John Muir Magnetic Imaging CenterWalnut Creek, CA
- John Muir Trauma Physicians Billing ServiceWalnut Creek, 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.
Shannon Michelle Gaffney among 4,500 diagnostic radiology physician records in California
Shannon Michelle Gaffney, DO 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 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 41% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 70% of these records are
- Graduated2006 · median 2004 among the 3,130 with a school on file
- Record last updated2024 · 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).
235 diagnostic radiology physician records list a practice address in Stanford
They are 235 of the 5,606 NPPES records with a practice address in Stanford, and 4,500 diagnostic radiology physician records in California.
All 4,500 in California → Every provider in Stanford → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Robert Boutin, MDStanford, CA 943051922088236
- Joseph Demartini, MDStanford, CA 943051043297096
- Aaron Hayashi, MDStanford, CA 943051336104082
- Kathy Keller, MDStanford, CA 943051255395257
- Mayil Krishnam, MDStanford, CA 943051467481192
- Curtis Langlotz, MD PHDStanford, CA 943051538105077
- Leon Lenchik, MDStanford, CA 943051871578336
- Darren Lum, M.D.Stanford, CA 943051528011806
Common questions
What is Shannon Michelle Gaffney, DO's NPI number?
Shannon Michelle Gaffney, DO's National Provider Identifier (NPI) is 1548459340, issued on Oct 17, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Shannon Michelle Gaffney, DO 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 Shannon Michelle Gaffney, DO's license?
NPPES lists California license number 20A14319, 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.