Active NPI
Janitzio Jiovanni Guzman, MD
- Infectious Disease Physician
- Houston, TX
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Infectious Disease Physician
- License
- V9909
- 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
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| 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
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Internal Medicine
- Education
- University of Texas Medical School at Houston, 2016
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
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
| License | State | Type | Specialty |
|---|---|---|---|
| V9909 | TX | MD | Pediatric Infectious Diseases Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Baylor College of Medicine | Current | Accepting new patients | |
| Baylor College of Medicine | Current | 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.
-
dba HCHD Community Medicine
- Family Medicine Physician
- Houston, TX
- NPI 1053352914
-
- Internal Medicine Physician
- Houston, TX
- NPI 1104867175
-
- Neurological Surgery Physician
- Houston, TX
- NPI 1730132721
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba Harris Health
- General Acute Care Hospital
- Houston, TX
- NPI 1205900370
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
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 1, 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.