Active NPI
Grant Hayes, MD MPH
- Preventive Medicine/Occupational Environmental Medicine Physician
- Houston, TX
National Provider Identifier
1851745848
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Preventive Medicine/Occupational Environmental Medicine Physician
- License
- MD-21287
- Practice address
- 2707 North Loop W
Houston, TX 77008-1051 - Phone
- (713) 255-5605
- NPI assigned
- Apr 16, 2016
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Preventive Medicine/Occupational Environmental Medicine Physician | 2083P0500X | MD-21287 | HI | Primary |
Addresses
Primary practice location
2707 North Loop W
Houston, TX 77008-1051
Mailing address
2707 North Loop W
Houston, TX 77008-1051
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Medicine
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1460764800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1780012800000",
"number": "1851745848",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2707 NORTH LOOP W",
"city": "HOUSTON",
"state": "TX",
"postal_code": "770081051"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2707 NORTH LOOP W",
"city": "HOUSTON",
"state": "TX",
"postal_code": "770081051",
"telephone_number": "713-255-5605"
}
],
"practiceLocations": [],
"basic": {
"last_name": "HAYES",
"first_name": "GRANT",
"credential": "MD MPH",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2016-04-16",
"last_updated": "2026-05-29",
"certification_date": "2026-05-29",
"status": "A"
},
"taxonomies": [
{
"code": "2083P0500X",
"taxonomy_group": "",
"desc": "Preventive Medicine, Preventive Medicine/Occupational Environmental Medicine",
"state": "HI",
"license": "MD-21287",
"primary": true
}
],
"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 May 29, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.