William C. Patton, M.D.
Obstetrics & Gynecology Physician · Loma Linda, CA
William C. Patton, M.D. is an obstetrics & gynecology physician with a practice address in Loma Linda, California, and NPI 1134141336, issued on Jul 24, 2006. Check the license (California G18872, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William C. Patton
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License number
- G18872 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11370 Anderson St, Loma Linda, CA 92354
- Phone
- (909) 558-2806
- Enumerated
- Jul 24, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 00G188720 CA
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 5,088 in California → Look up another NPI →
Also registered at 11370 Anderson St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Carine AbinaderWomen's Health Nurse Practitioner1174345771
- Ray Abinader, M.D.Obstetrics & Gynecology Physician1770901548
- Ahmed Abou-Zamzam, M.D.Vascular Surgery Physician1558306795
- Borhaan Ahmad, M.D.Pediatrics Physician1740203595
Verify William C. Patton in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G18872Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
87% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
22 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
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.
William C. Patton among 5,088 obstetrics & gynecology physician records in California
William C. Patton, M.D. is one of 5,088 obstetrics & gynecology 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 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 52% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileNo · 53% of these records are
- Record last updated2007 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
59 obstetrics & gynecology physician records list a practice address in Loma Linda
They are 59 of the 4,863 NPPES records with a practice address in Loma Linda, and 5,088 obstetrics & gynecology physician records in California.
All 5,088 in California → Every provider in Loma Linda → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Kevin Balli, M.D.Loma Linda, CA 923541083636260
- Barry Block, M.D.Loma Linda, CA 923541134141328
- Karen Gaio Hansberger, MDLoma Linda, CA 923541710083159
- Yvonne Gollin, M.D.Loma Linda, CA 923541790899300
- Jeffrey Hardesty, M.D.Loma Linda, CA 923541447364062
- Elaine Hart, M.D.Loma Linda, CA 923541396767588
- John Jacobson, M.D.Loma Linda, CA 923541467474650
- Kathleen Lau, M.D.Loma Linda, CA 923541164536702
Common questions
What is William C. Patton, M.D.'s NPI number?
William C. Patton, M.D.'s National Provider Identifier (NPI) is 1134141336, issued on Jul 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William C. Patton, M.D. located?
The NPPES record lists a practice address at 11370 Anderson St, Loma Linda, CA, 92354. Phone: (909) 558-2806. Providers update this record themselves, so call before visiting.
How can I verify William C. Patton, M.D.'s license?
NPPES lists California license number G18872, 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 C. Patton, M.D. prescribe under Medicare Part D?
In 2024, William C. Patton, M.D. had 22 Medicare Part D claims; the average among obstetrics & gynecology physician prescribers was 165. 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.