Active NPI
William Anthony Zammarrelli III, M.D.
- Gynecologic Oncology Physician
- Fort Sam Houston, TX
National Provider Identifier
1588027577
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Gynecologic Oncology Physician
- License
- V2602
- Practice address
- Brooke Army Medical Center
3551 Roger Brooke Dr
Fort Sam Houston, TX 78234 - Phone
- (210) 916-4141
- NPI assigned
- Mar 29, 2016
- Sex
- Male
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Gynecologic Oncology Physician | 207VX0201X | V2602 | TX | Primary |
Addresses
Primary practice location
Brooke Army Medical Center
3551 Roger Brooke Dr
Fort Sam Houston, TX 78234
Mailing address
3551 Roger Brooke Dr
Fort Sam Houston, TX 78234-4504
Other practice location 1
1100 Wilford Hall Loop
Jbsa Lackland, TX 78236-5638
Phone (210) 292-4277
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in TX
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20250821000127 | TX | Order and Referring Only - Gynecological Oncology | 4486154804 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 2318436 | NY | MD | Gynecologic Oncology Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1459209600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1782086400000",
"number": "1588027577",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "3551 ROGER BROOKE DR",
"city": "FORT SAM HOUSTON",
"state": "TX",
"postal_code": "782344504"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "BROOKE ARMY MEDICAL CENTER",
"address_2": "3551 ROGER BROOKE DR",
"city": "FORT SAM HOUSTON",
"state": "TX",
"postal_code": "78234",
"telephone_number": "210-916-4141"
}
],
"practiceLocations": [
{
"address_1": "1100 Wilford Hall Loop",
"address_purpose": "LOCATION",
"city": "Jbsa Lackland",
"state": "TX",
"postal_code": "782365638",
"country_code": "US",
"telephone_number": "210-292-4277",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "ZAMMARRELLI",
"first_name": "WILLIAM",
"middle_name": "ANTHONY",
"name_prefix": "Dr.",
"name_suffix": "III",
"credential": "M.D.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2016-03-29",
"last_updated": "2026-06-22",
"certification_date": "2026-06-22",
"status": "A"
},
"taxonomies": [
{
"code": "207VX0201X",
"taxonomy_group": "",
"desc": "Obstetrics & Gynecology, Gynecologic Oncology",
"state": "TX",
"license": "V2602",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Fort Sam Houston, TX
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 22, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.