Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

William Gunter Loudon, MD

Individual provider Neurological Surgery Physician · NPI 1437265816

William Gunter Loudon, MD is a Pediatric Medicine in Laguna Niguel, California. Graduated from University of Texas Medical School at Houston in 1991, 35 years ago. Accepts Medicare assignment. Licensed in California.

Years since qualifying
35
Trained at
University of Texas Medical School at Houston
Licensed in
CA
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

30131 Town Center Dr Ste 195
Laguna Niguel, CA 92677-2040
Phone: (714) 677-9463
Fax: (949) 215-1555
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neurological Surgery Physician (primary) Taxonomy 207T00000X · Licence A72588 (CA)

Record details

NPI number1437265816
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedAugust 21, 2006
Last updated in NPPESFebruary 12, 2026
Certification dateFebruary 12, 2026

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPEDIATRIC MEDICINE
Also practisesNEUROSURGERY
Medical schoolUNIVERSITY OF TEXAS MEDICAL SCHOOL AT HOUSTON
Graduated 1991 (35 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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