Active NPI
Adam Jay Grippin, MD
- Radiation Oncology Physician
- Houston, TX
National Provider Identifier
1881270304
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Radiation Oncology Physician
- License
- W7679
- Practice address
- 1515 Holcombe Blvd
Houston, TX 77030-4000 - Phone
- (713) 792-6161
- NPI assigned
- Mar 23, 2021
- 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 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Radiation Oncology Physician | 2085R0001X | W7679 | TX | Primary |
Addresses
Primary practice location
1515 Holcombe Blvd
Houston, TX 77030-4000
Mailing address
P O Box 4439
Houston, TX 77210-4439
Phone (713) 792-2991
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: Yes
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1616457600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1786924800000",
"number": "1881270304",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "P O BOX 4439",
"city": "HOUSTON",
"state": "TX",
"postal_code": "772104439",
"telephone_number": "713-792-2991"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "1515 HOLCOMBE BLVD",
"city": "HOUSTON",
"state": "TX",
"postal_code": "770304000",
"telephone_number": "713-792-6161"
}
],
"practiceLocations": [],
"basic": {
"last_name": "GRIPPIN",
"first_name": "ADAM",
"middle_name": "JAY",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2021-03-23",
"last_updated": "2026-08-17",
"certification_date": "2026-08-17",
"status": "A"
},
"taxonomies": [
{
"code": "2085R0001X",
"taxonomy_group": "",
"desc": "Radiology, Radiation Oncology",
"state": "TX",
"license": "W7679",
"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 Aug 17, 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.