Katherine L Gillaspy, M.D.

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

43124 Issued in AZ

Practice address

2300 N Rosemont Blvd
Tucson, AZ 85712-2139

Phone

(520) 881-1977

Fax

(520) 881-1979

NPI assigned

Jun 14, 2007

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Other identifiers 2

Medicare fee-for-service enrollment

Enrolled in AZ

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

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/20219/brand/1/csg/1/fhir/r4
• Direct secure messaging: katherine.gillaspy.1@20219.direct.athenahealth.com

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.

• Valley Perinatal Services, LLC

  • Maternal & Fetal Medicine Physician
  • Chandler, AZ
  • NPI 1174866743

  Obstetrics & Gynecology

  Medicare reassignment NPD
• Genesis OB GYN PLLC

  • Obstetrics & Gynecology Physician
  • Tucson, AZ
  • NPI 1992994214
  Medicare reassignment
• Banner Thunderbird Medical Center

  • General Acute Care Hospital
  • Glendale, AZ
  • NPI 1154355188
  NPD (past)
• Catherine Westerband MD PC

  • Obstetrics & Gynecology Physician
  • Tucson, AZ
  • NPI 1720167414
  NPD (past)
• Fetal and Women'S Center of Arizona, LLC

  • Specialist
  • Scottsdale, AZ
  • NPI 1801822119
  NPD (past)
• Tucson Medical Center

  • General Acute Care Hospital
  • Tucson, AZ
  • NPI 1174512792
  NPD (past)

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

{
    "created_epoch": "1181779200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765756800000",
    "number": "1174727754",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 81064",
            "city": "CLEVELAND",
            "state": "OH",
            "postal_code": "441810064",
            "telephone_number": "520-795-8080"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2300 N ROSEMONT BLVD",
            "city": "TUCSON",
            "state": "AZ",
            "postal_code": "857122139",
            "telephone_number": "520-881-1977",
            "fax_number": "520-881-1979"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "GILLASPY",
        "first_name": "KATHERINE",
        "middle_name": "L",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-06-14",
        "last_updated": "2025-12-15",
        "certification_date": "2025-12-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "AZ",
            "license": "43124",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "518266",
            "state": "AZ"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MYUTMB 3858222709-COMMERCIAL NUMBER",
            "identifier": "3858222709",
            "state": null
        }
    ],
    "endpoints": [],
    "other_names": []
}

• John Matthew B Gill, O.D.
• Joshua Gill
• Nathaniel Aaron Gill
• Sundeep Singh Gill, D.D.S.
• James M Gillard, M.D.
• Christopher Peter Gilles, M.D.
• Mary Ellen Gilles, M.D.
• Sue Ann Gilles, MSW
• Eva Gillespie, APRN- PMHNP-BC
• Stephanie Marie Gillespie, NP

• Obstetrics & Gynecology Physician in Tucson, AZ
• Providers in Tucson, AZ by specialty
• Obstetrics & Gynecology Physician in Arizona

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 15, 2025; 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.

Verify at the official NPI Registry.