William S.m. Shanahan, MD
Diagnostic Radiology Physician · Whittier, CA
William S.m. Shanahan, MD is a diagnostic radiology physician with a practice address in Whittier, California, and NPI 1013991116, issued on Dec 1, 2005. Check the license (California G41618, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- William S.m. Shanahan
- Credential
- MD
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- G41618 CA
Self-reported in NPPES; status is on the state search - Practice location
- 12401 East Washington Blvd., Whittier, CA 90602
- Phone
- (562) 698-0811
- Enumerated
- Dec 1, 2005
- Record last updated
- Aug 13, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (562) 309-8200
- Medicaid ID
- 1205815107 CA
- Entity
- Type 1 · individual
Also registered at 12401 East Washington Blvd.
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Daniel Saket, MDDiagnostic Radiology Physician1245389154
Verify William S.m. Shanahan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G41618Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Diagnostic Radiology Physician providers in California
There are 4,500 diagnostic radiology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other diagnostic radiology physician records in California
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- Kenric Aban, M.D.Oceanside, CA1336218023
- Pablo Abbona, MDLos Angeles, CA1689856239
- Rashed AbdelaalRiverside, CA1518726090
- Ahmed Abdelhalim, MDRiverside, CA1275162927
- Fatemeh Abdollahi Mofakham, MDLos Angeles, CA1659652915
- Bennett Abe, MDVisalia, CA1184731283
- Stephen Abedon, M.D.Daly City, CA1689628687
- Richard Abello, M.D.La Jolla, CA1245205996
Common questions
What is William S.m. Shanahan, MD's NPI number?
William S.m. Shanahan, MD's National Provider Identifier (NPI) is 1013991116, issued on Dec 1, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William S.m. Shanahan, MD located?
The NPPES record lists a practice address at 12401 East Washington Blvd., Whittier, CA, 90602. Phone: (562) 698-0811. Providers update this record themselves, so call before visiting.
How can I verify William S.m. Shanahan, MD's license?
NPPES lists California license number G41618, 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. 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.