Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Gus G Gialamas, MD
Specialist in San Clemente, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1992735914
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Registry record
Entity type Individual (Type 1)
Name Dr. Gus G Gialamas
Credential MD
Sex Male
Practice address 653 Camino De Los Mares Ste 109, San Clemente, CA, 92673
Phone (949) 661-2423
Fax (949) 661-9205
Enumeration date Jul 4, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What specialty is Gus Gialamas?
Gus Gialamas is registered in NPPES with the primary taxonomy of Specialist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Sea View Orthopaedic Medical Group Apc Specialist · San Clemente, CA NPI 1821028713 William Van Der Reis Specialist · San Clemente, CA NPI 1710911078 Darcy Schroer Medical Physician Assistant · San Clemente, CA NPI 1003840141 Adam Franklin Orthopaedic Surgery Physician · San Clemente, CA NPI 1508084120 Bone Docs Inc Urgent Care Clinic/Center · San Clemente, CA NPI 1679924336
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.