Guillermo Leoz-Callizo, MD

Primary specialty

Psychiatry PhysicianTaxonomy code 2084P0800X

License

R7052 Issued in TX

Practice address

1415 California St
Houston, TX 77006-2602

Phone

(832) 548-5000

Fax

(832) 548-5092

NPI assigned

Jul 18, 2014

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

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

Specialty

Psychiatry

Education

Other, 2011

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Legacy Community Health Services, IncGroup PAC ID 7911969092, 153 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: guillermo.leoz-callizo.1@26356.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.

• Legacy Community Health Services, Inc

  • Federally Qualified Health Center (FQHC)
  • Houston, TX
  • NPI 1679524961
  Medicare reassignment Care Compare group NPD
• Legacy Community Health Services, Inc

  • Federally Qualified Health Center (FQHC)
  • Pasadena, TX
  • NPI 1609762889
  NPD
• AIDS Healthcare Foundation Texas Inc

  • Clinic/Center
  • Fort Worth, TX
  • NPI 1104190115
  NPD (past)
• AIDS Healthcare Foundation Texas Inc

  • Infectious Disease Physician
  • Houston, TX
  • NPI 1992321558
  NPD (past)

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

{
    "created_epoch": "1405641600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771459200000",
    "number": "1528475845",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "6255 W SUNSET BLVD FL 21",
            "city": "LOS ANGELES",
            "state": "CA",
            "postal_code": "900287422",
            "telephone_number": "323-860-5200"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1415 CALIFORNIA ST",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770062602",
            "telephone_number": "832-548-5000",
            "fax_number": "832-548-5092"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4301 Garth Rd",
            "address_2": "STE 302, 306, & 400",
            "address_purpose": "LOCATION",
            "city": "Baytown",
            "state": "TX",
            "postal_code": "775213153",
            "country_code": "US",
            "telephone_number": "832-548-5000",
            "fax_number": "281-420-8445",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "400 N Beach St Ste 104",
            "address_purpose": "LOCATION",
            "city": "Fort Worth",
            "state": "TX",
            "postal_code": "761117070",
            "country_code": "US",
            "telephone_number": "817-831-1750",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LEOZ-CALLIZO",
        "first_name": "GUILLERMO",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2014-07-18",
        "last_updated": "2026-02-19",
        "certification_date": "2026-02-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "TX",
            "license": "R7052",
            "primary": true
        },
        {
            "code": "2084P0800X",
            "taxonomy_group": "",
            "desc": "Psychiatry & Neurology, Psychiatry",
            "state": "MN",
            "license": "62571",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Christina Michelle Leopold, MA, LPC
• Kendrea Gayle Leopold, LVN
• Nicolette Leopold
• Wendy Smitherman Leopoulos, M.D.
• Leora Salo Designs, Inc
• Anusa Lepadatu, APRN, PMHNP-BC
• Paul Lephuoc, PH.D.
• Phuong Thuy Lephuoc, D.D.S.
• Lindsey Lepoidevin, MD
• Lepow Management, Inc.

• Psychiatry Physician in Houston, TX
• Providers in Houston, TX by specialty
• Psychiatry Physician in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 19, 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.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.