William Gunter Loudon, MD
Neurological Surgery Physician · Laguna Niguel, CA
William Gunter Loudon, MD is a neurological surgery physician with a practice address in Laguna Niguel, California, and NPI 1437265816, issued on Aug 21, 2006. Check the license (California A72588, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- William Gunter Loudon
- Credential
- MD
- Primary taxonomy
- Neurological Surgery Physician 207T00000X
- License number
- A72588 CA
Self-reported in NPPES; status is on the state search - Practice location
- 30131 Town Center Dr Ste 195, Laguna Niguel, CA 92677
- Phone
- (714) 677-9463
- Enumerated
- Aug 21, 2006
- Record last updated
- Feb 12, 2026
- Fax
- (949) 215-1555
- Medicaid ID
- 00A725880 CA
- Medicare enrollment
- Enrolled (PECOS I20050715000885); accepts Medicare assignment
- Medical or professional school
- University Of Texas Medical School At Houston, 1991
- Entity
- Type 1 · individual
8 nearest neurological surgery physician records → All 929 in California → Look up another NPI →
Verify William Gunter Loudon in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A72588Check 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: $290.53
7 payments; by number, the most common kind was food and beverage; the largest payer was Integra LifeSciences Corporation. The 5,377 providers of this specialty with any payment received $14,925.58 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 Gunter Loudon among 929 neurological surgery physician records in California
William Gunter Loudon, MD is one of 929 neurological surgery physician records with a practice address in California. 77% 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, 62% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1991 · median 2005 among the 612 with a school on file
- Record last updated2026 · 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 207T00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurological Surgery Physician providers in California
There are 929 neurological surgery physician records in California.
All 929 in California → Every provider in Laguna Niguel → Neurological Surgery Physician nationwide →
The 8 neurological surgery physician records with the nearest ZIP codes
- Jeffrey Gross, M.D.Laguna Niguel, CA 926771407961188
- Jacques Palmer, M.D.San Juan Capistrano, CA 926751841310398
- Hitesh Patel, MDSan Clemente, CA 926731053573519
- Minh Tran, M.D.Westminster, CA 926831508991928
- William Dobkin, M.D.Newport Beach, CA 926631740214295
- Christopher Duma, M.D.Newport Beach, CA 926631306870845
- Ezequiel Goldschmidt, M.D, PH.DNewport Beach, CA 926631407232358
- Deborah Henry, M.D.Newport Beach, CA 926631407879950
Common questions
What is William Gunter Loudon, MD's NPI number?
William Gunter Loudon, MD's National Provider Identifier (NPI) is 1437265816, issued on Aug 21, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Gunter Loudon, MD located?
The NPPES record lists a practice address at 30131 Town Center Dr Ste 195, Laguna Niguel, CA, 92677. Phone: (714) 677-9463. Providers update this record themselves, so call before visiting.
How can I verify William Gunter Loudon, MD's license?
NPPES lists California license number A72588, 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.