Individual provider Active NPI

Ashley Kristan Windham, D.O.

  • Hematology (Pathology) Physician
  • San Antonio, TX
National Provider Identifier
1235517301
Registry record updated Apr 22, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology (Pathology) PhysicianTaxonomy code 207ZH0000X
License
T3570 Issued in TX
Practice address
4502 Medical Dr
San Antonio, TX 78229-4402
Phone
(210) 358-4000
NPI assigned
May 11, 2015
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 22, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Blood Banking & Transfusion Medicine Physician 207ZB0001X T3570 TX
Hematology (Pathology) Physician 207ZH0000X T3570 TX Primary

Addresses

Primary practice location

4502 Medical Dr
San Antonio, TX 78229-4402

Mailing address

4502 Medical Dr
San Antonio, TX 78229-4402
Phone (210) 358-4000

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
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20221014000030 TX Practitioner - Pathology 6305212499 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Pathology
Education
Other, 2015
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
University of Texas Health Science Center at San AntonioGroup PAC ID 0042128548, 1,290 clinicians

Practice addresses (Care Compare)

4502 Medical Dr
San Antonio, TX 78229-4402
Phone (210) 358-4000

Hospital & facility affiliations

  • University Health System Hospital, San Antonio, TX, CCN 450213

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Osteopathy

State licenses

LicenseStateTypeSpecialty
T3570TXMDBlood Banking & Transfusion Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
University of Texas Health Science Center at San Antonio CurrentSince Sep 1, 2022 Accepting new patients
University of Texas Health Science Center at San Antonio Anatomic Pathology & Clinical Pathology Current Accepting new patients
The University of Texas Health Science Center at San Antonio CurrentSince Sep 1, 2022 Accepting new patients

Locations

7703 Floyd Curl Dr
San Antonio, TX 78229
Phone (210) 450-3700

4502 Medical Dr
San Antonio, TX 78229
Phone (210) 358-3555

Organizations & group practices 3

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 1

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1431302400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1776816000000",
    "number": "1235517301",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4502 MEDICAL DR",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782294402",
            "telephone_number": "210-358-4000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4502 MEDICAL DR",
            "city": "SAN ANTONIO",
            "state": "TX",
            "postal_code": "782294402",
            "telephone_number": "210-358-4000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WINDHAM",
        "first_name": "ASHLEY",
        "middle_name": "KRISTAN",
        "name_prefix": "Dr.",
        "credential": "D.O.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2015-05-11",
        "last_updated": "2026-04-22",
        "certification_date": "2026-04-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207ZB0001X",
            "taxonomy_group": "",
            "desc": "Pathology, Blood Banking & Transfusion Medicine",
            "state": "TX",
            "license": "T3570",
            "primary": false
        },
        {
            "code": "207ZH0000X",
            "taxonomy_group": "",
            "desc": "Pathology, Hematology",
            "state": "TX",
            "license": "T3570",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in San Antonio, TX

Sources for this page

Verify at the official NPI Registry.