Individual provider · Type 1 NPI

Mark Joseph Geslak, PA

Medical Physician Assistant · Fort Sam Houston, TX

NPI number 1104898758 Active

Practice location

3851 Roger Brooke Dr, Mche-Qd
Fort Sam Houston, TX 78234-4501

Mailing address

4855 Encanto Creek Dr
San Antonio, TX 78247-5618

Specialties and licenses

TaxonomyCodeLicense
Medical Physician Assistant Primary 363AM0700XPA04593 (TX)

Medical Physician Assistant: Definition to come...

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About NPI 1104898758

Mark Joseph Geslak, PA's National Provider Identifier is 1104898758, issued on Feb 6, 2006. The primary taxonomy on file is Medical Physician Assistant (363AM0700X), and the practice location is in Fort Sam Houston, TX. The record was last updated on Jul 13, 2026.