MARK JOSEPH GESLAK PA
NPI 1104898758
Physician Assistant - Medical in Fort Sam Houston, TX
- Individual
- Male
- Physician Assistant
- Medical
About MARK GESLAK
This page provides the complete NPI Profile along with additional information for Mark Geslak, a primary care provider established in Fort Sam Houston, Texas with a medical specialization in Physician Assistant, focusing in medical . The healthcare provider is registered in the NPI registry with number 1104898758 assigned on February 2006. The practitioner's primary taxonomy code is 363AM0700X with license number PA04593 (TX). The provider is registered as an individual and his NPI record was last updated July 2026.
- NPI
- 1104898758 Verify this NPI
- Provider Name
- MARK JOSEPH GESLAK PA
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 3851 ROGER BROOKE DR MCHE-QD FORT SAM HOUSTON, TX 78234
- Location Phone
- (210) 916-2460
- Mailing Address
- 4855 ENCANTO CREEK DR SAN ANTONIO, TX 78247
- Mailing Phone
- (210) 545-7324
- Is Sole Proprietor?
- No
- Enumeration Date
- 02-06-2006
- Last Update Date
- 07-13-2026
- Code Navigator
A primary care provider (PCP) like Mark Geslak sees people with common medical problems. The primary care provider might be a doctor, physician assistant, nurse practitioner or clinic that are usually involved in your long-term care. A PCP might provide preventive care, treat common medical conditions, identify urgent medical problems and refer you to specialists when necessary. Primary care is usually provided in an outpatient facility but if you are admitted to a hospital your PCP may assist in your care. The most common medical conditions seen by primary care providers are: hypertension, upper respiratory tract infections, depression or anxiety, back pain, arthritis, dermatitis, diabetes, urinary tract infections, etc .
Location Map
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Physician Assistant Medical
- Taxonomy Code
- 363AM0700X
- Type
- Physician Assistants & Advanced Practice Nursing Providers
- License No.
- PA04593
- License State
- TX
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Other Providers at the Same Location
The following 18 providers are registered at the same or a nearby location.
SAN ANTONIO, TX 78234
FORT SAM HOUSTON, TX 78234
FORT SAM HOUSTON, TX 78234
FORT SAM HOUSTON, TX 78234
FORT SAM HOUSTON, TX 78234
SAN ANTONIO, TX 78234
FORT SAM HOUSTON, TX 78234
FORT SAM HOUSTON, TX 78234
FORT SAM HOUSTON, TX 78234
FORT SAM HOUSTON, TX 78234
FORT SAM HOUSTON, TX 78234
FORT SAM HOUSTON, TX 78234
SAN ANTONIO, TX 78234
FORT SAM HOUSTON, TX 78234
FORT SAM HOUSTON, TX 78234
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1104898758, enumerated as an "individual" on February 06, 2006.
The provider is located at 3851 ROGER BROOKE DR MCHE-QD FORT SAM HOUSTON, TX 78234 and the phone number is (210) 916-2460.
Physician Assistant with taxonomy code 363AM0700X and a focus in Medical.
