William Somers, M.D
Family Medicine Physician · Santa Maria, CA
William Somers, M.D is a family medicine physician with a practice address in Santa Maria, California, and NPI 1205870755, issued on Jun 15, 2006. Check the license (California G50247, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William Somers
- Credential
- M.D
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- G50247 CA
Self-reported in NPPES; status is on the state search - Practice location
- 821 E Chapel St Ste 203, Santa Maria, CA 93454
- Phone
- (805) 925-5334
- Enumerated
- Jun 15, 2006
- Record last updated
- Nov 15, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (805) 922-5923
- Medicare enrollment
- Enrolled (PECOS I20070205000547); accepts Medicare assignment
- Medical or professional school
- Loma Linda University School Of Medicine, 1982
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 17,133 in California → Look up another NPI →
Also registered at 821 E Chapel St Ste 203
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jeffrey Kaplan, MDPediatrics Physician1366477028
Verify William Somers in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G50247Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average family medicine physician in 2024
148 Medicare Part D claims for 97 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Mounjaro11 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.
Bills Medicare through one group practice
- Sutter Bay Medical FoundationSanta Cruez, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Somers among 17,133 family medicine physician records in California
William Somers, M.D is one of 17,133 family medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1982 · median 2005 among the 10,652 with a school on file
- Record last updated2018 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
79 family medicine physician records list a practice address in Santa Maria
They are 79 of the 3,047 NPPES records with a practice address in Santa Maria, and 17,133 family medicine physician records in California.
All 17,133 in California → Every provider in Santa Maria → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Jesse Arellano, MDSanta Maria, CA 934541285659284
- Thomas Dawes, MDSanta Maria, CA 934541386668473
- Kamlesh Desai, M.D.Santa Maria, CA 934541336137850
- Brian Desmond, M.D.Santa Maria, CA 934541972591865
- Eric Levy, M.D.Santa Maria, CA 934541891779021
- Richard McClaflin, MDSanta Maria, CA 934541912939075
- Brian Miyagishima, MDSanta Maria, CA 934541801870662
- Mary Jane Morash, MDSanta Maria, CA 934541154351195
Common questions
What is William Somers, M.D's NPI number?
William Somers, M.D's National Provider Identifier (NPI) is 1205870755, issued on Jun 15, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Somers, M.D located?
The NPPES record lists a practice address at 821 E Chapel St Ste 203, Santa Maria, CA, 93454. Phone: (805) 925-5334. Providers update this record themselves, so call before visiting.
How can I verify William Somers, M.D's license?
NPPES lists California license number G50247, 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 William Somers, M.D prescribe under Medicare Part D?
In 2024, William Somers, M.D had 148 Medicare Part D claims for 97 beneficiaries; the average among family medicine physician prescribers was 3,544. 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.