William G. Preston, MD
Neurology Physician · Laguna Hills, CA
William G. Preston, MD is a neurology physician with a practice address in Laguna Hills, California, and NPI 1376583922, issued on Jun 8, 2006. Check the license (California G22862, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William G. Preston
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- G22862 CA
Self-reported in NPPES; status is on the state search - Practice location
- 23961 Calle DE LA Magdalena, Laguna Hills, CA 92653
- Phone
- (949) 837-1130
- Enumerated
- Jun 8, 2006
- Record last updated
- Jun 22, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (949) 581-9189
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 2,339 in California → Look up another NPI →
Also registered at 23961 Calle DE LA Magdalena
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify William G. Preston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G22862Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $43.07
2 payments; by number, the most common kind was food and beverage; the largest payer was GE Healthcare. The 10,858 providers of this specialty with any payment received $8,318.07 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
William G. Preston among 2,339 neurology physician records in California
William G. Preston, MD is one of 2,339 neurology 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 4% of them.
- NPI issued2006 · 4% of these records are older, 59% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 70% of these records are
- Record last updated2010 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in California
There are 2,339 neurology physician records in California.
All 2,339 in California → Every provider in Laguna Hills → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Karen Cheng, M.D.Laguna Hills, CA 926531518163161
- Caroline Choan, MDLaguna Hills, CA 926531255352498
- Mishel Farasatpour, MDLaguna Hills, CA 926531841533767
- Kiet Loc, M.D.Laguna Hills, CA 926531609041581
- Michael Shen, MDLaguna Hills, CA 926531154402238
- Robert Sutter, M.D.Laguna Hills, CA 926531437172509
- Mindy Bixby, D.O.Aliso Viejo, CA 926561508012139
- Thomas Ludema, MDAliso Viejo, CA 926561316953243
Common questions
What is William G. Preston, MD's NPI number?
William G. Preston, MD's National Provider Identifier (NPI) is 1376583922, issued on Jun 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William G. Preston, MD located?
The NPPES record lists a practice address at 23961 Calle DE LA Magdalena, Laguna Hills, CA, 92653. Phone: (949) 837-1130. Providers update this record themselves, so call before visiting.
How can I verify William G. Preston, MD's license?
NPPES lists California license number G22862, 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.