Individual provider Active NPI

Janitzio Jiovanni Guzman, MD

  • Infectious Disease Physician
  • Houston, TX
National Provider Identifier
1235592643
Registry record updated Jul 1, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Infectious Disease PhysicianTaxonomy code 207RI0200X
License
V9909 Issued in TX
Practice address
3601 N Macgregor Way
Houston, TX 77004-8004
Phone
(713) 873-3700
NPI assigned
Apr 1, 2016
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 1, 2026

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

Specialties & licenses 3

Specialty (taxonomy)CodeLicenseStatePrimary
Pediatric Infectious Diseases Physician 2080P0208X V9909 TX
Infectious Disease Physician 207RI0200X V9909 TX Primary
Infectious Disease Physician 207RI0200X MD048232 DC

Addresses

Primary practice location

3601 N Macgregor Way
Houston, TX 77004-8004

Mailing address

1 Baylor PLZ
Jewish Building, Room 011-Du
Houston, TX 77030
Phone (713) 873-4000

Other practice location 1

2525A Holly Hall St
Houston, TX 77054-4124
Phone (713) 526-4243

Other practice location 2

1504 Taub Loop
Houston, TX 77030-1608
Phone (713) 873-8890

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
I20250724001604 TX Practitioner - Infectious DiseasePractitioner - Pediatric Medicine 3577933589 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Internal MedicineAlso: Infectious Disease
Education
University of Texas Medical School at Houston, 2016
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Baylor College of MedicineGroup PAC ID 8224941265, 796 clinicians

Practice addresses (Care Compare)

3601 N Macgregor Way
Houston, TX 77004-8004
Phone (713) 873-4700

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
V9909TXMDPediatric Infectious Diseases Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Baylor College of Medicine CurrentSince Jul 11, 2025 Accepting new patients
Baylor College of Medicine CurrentSince Jul 11, 2025 Accepting new patients
Baylor College of Medicine Past Accepting new patients

Locations

1 Baylor Plz
#2
Houston, TX 77030

2525 Holly Hall St
#A
Houston, TX 77054
Phone (713) 526-4243

1504 Taub Loop
#621
Houston, TX 77030

1504 Taub Loop
Houston, TX 77030
Phone (713) 873-2860

3601 N Macgregor Way
Houston, TX 77004
Phone (713) 793-4000

6651 Main St
Va Hospital, TX 77030
Phone (832) 826-3000

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": "1459468800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782864000000",
    "number": "1235592643",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 BAYLOR PLZ",
            "address_2": "JEWISH BUILDING, ROOM 011-DU",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "77030",
            "telephone_number": "713-873-4000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3601 N MACGREGOR WAY",
            "city": "HOUSTON",
            "state": "TX",
            "postal_code": "770048004",
            "telephone_number": "713-873-3700"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2525A Holly Hall St",
            "address_purpose": "LOCATION",
            "city": "Houston",
            "state": "TX",
            "postal_code": "770544124",
            "country_code": "US",
            "telephone_number": "713-526-4243",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1504 Taub Loop",
            "address_purpose": "LOCATION",
            "city": "Houston",
            "state": "TX",
            "postal_code": "770301608",
            "country_code": "US",
            "telephone_number": "713-873-8890",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GUZMAN",
        "first_name": "JANITZIO",
        "middle_name": "JIOVANNI",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2016-04-01",
        "last_updated": "2026-07-01",
        "certification_date": "2026-07-01",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2080P0208X",
            "taxonomy_group": "",
            "desc": "Pediatrics, Pediatric Infectious Diseases",
            "state": "TX",
            "license": "V9909",
            "primary": false
        },
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "TX",
            "license": "V9909",
            "primary": true
        },
        {
            "code": "207RI0200X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Infectious Disease",
            "state": "DC",
            "license": "MD048232",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Houston, TX

Sources for this page

Verify at the official NPI Registry.