Active NPI
Tom Griffin, DO
- Internal Medicine Physician
- Houston, TX
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Internal Medicine Physician
- License
- U4208
- Practice address
- 18333 Egret Bay Blvd Ste 140
Houston, TX 77058-3239 - Phone
- (281) 332-3001
- Fax
- (281) 332-3005
- NPI assigned
- Apr 7, 2020
- Last updated
- Oct 2, 2026
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Internal Medicine Physician | 207R00000X | U4208 | TX | Primary |
| Hospitalist Physician | 208M00000X | U4208 | TX |
Addresses
Primary practice location
18333 Egret Bay Blvd Ste 140
Houston, TX 77058-3239
Mailing address
18333 Egret Bay Blvd Ste 140
Houston, TX 77058-3239
Phone (281) 332-3001
Other practice location 1
500 W Medical Center Blvd
Webster, TX 77598-4220
Phone (281) 332-2511
Other practice location 2
200 Blossom St
Webster, TX 77598-4204
Phone (832) 632-6500
Other practice location 3
11800 Astoria Blvd
Houston, TX 77089-6041
Phone (281) 929-6485
Other practice location 4
2240 Gulf Fwy S
League City, TX 77573-5143
Phone (409) 772-1011
Other identifiers 5
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 481421203 | Medicaid | TX | |
| 8VY978 | Other | TX | BCBSTX |
| 481421201 | Medicaid | TX | |
| 481421204 | Medicaid | TX | |
| 481421202 | Medicaid | TX |
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
- Other, 2019
- Medicare assignment
- May accept Medicare assignment
- Group practices
Practice addresses (Care Compare)
11800 Astoria Blvd
Houston, TX 77089-6041
Phone (281) 332-3001
18300 Houston Methodist Dr
Houston, TX 77058-6302
Phone (281) 332-3001
18333 Egret Bay Blvd
Suite 140
Houston, TX 77058-3239
Phone (281) 332-3001
200 Blossom St
Webster, TX 77598-4204
Phone (281) 332-3001
2240 Gulf Fwy S
League City, TX 77573-5143
Phone (281) 332-3001
411 Alabama Ave
League City, TX 77573-2615
Phone (281) 332-3001
500 W Medical Ctr Blvd
Webster, TX 77598-4220
Phone (281) 332-3001
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Osteopathy, Nurse Practitioner
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| U4208 | TX | MD | Internal Medicine Physician |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Xpertmd | Internal Medicine | Current | Accepting new patients |
| University of Texas Medical Branch at Galveston | Past | Accepting new patients |
Locations
1500 Sunset Dr
Friendswood, TX 77546
Phone (281) 922-4300
10800 Flora Mae Meadows Rd
Houston, TX 77089
Phone (832) 328-2350
18300 Houston Methodist Dr
Houston, TX 77058
Phone (281) 206-9020
18333 Egret Bay Blvd
Ste 140
Houston, TX 77058
Phone (281) 218-8797
6150 South Loop E
Houston, TX 77087
Phone (713) 640-2400
3950 Underwood Rd
La Porte, TX 77571
Phone (210) 951-1900
2240 Gulf Fwy S
League City, TX 77573
Phone (832) 505-1000
255 N Egret Bay Blvd
League City, TX 77573
Phone (281) 525-4320
411 Alabama Ave
League City, TX 77573
Phone (281) 332-9588
4900 E Sam Houston Pkwy S
Pasadena, TX 77505
Phone (281) 998-0399
5020 Space Center Blvd
Pasadena, TX 77505
Phone (713) 575-1800
11800 Astoria Blvd
Pearland, TX 77089
Phone (281) 929-6100
16100 South Fwy
Pearland, TX 77584
Phone (713) 413-5000
3400 E Walnut St
Pearland, TX 77581
Phone (281) 485-2776
110 E Medical Center Blvd
Webster, TX 77598
Phone (281) 218-8797
16130 Highway 3
Webster, TX 77598
Phone (832) 426-7030
200 Blossom St
Webster, TX 77598
Phone (281) 252-7000
350 Blossom St
Webster, TX 77598
Phone (281) 316-7800
500 W Medical Center Blvd
Webster, TX 77598
Phone (713) 447-4650
655 E Medical Center Blvd
Webster, TX 77598
Phone (281) 218-8797
709 W Medical Center Blvd
Webster, TX 77598
Phone (281) 316-8070
Organizations & group practices 2
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
dba University of Texas Medical Branch
- General Acute Care Hospital
- Galveston, TX
- NPI 1548226988
Hospital & facility affiliations 6
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
dba HCA Houston Healthcare Clear Lake
- General Acute Care Hospital
- Webster, TX
- NPI 1063466035
-
dba Houston Methodist Clear Lake Hospital
- General Acute Care Hospital
- Houston, TX
- NPI 1952723967
-
dba Living Hope Home Healthcare
- Home Health Agency
- Houston, TX
- NPI 1710029236
-
dba Texas Home Health Skilled Services
- Home Health Agency
- Desoto, TX
- NPI 1801880554
-
dba AccentCare Home Health of Texas
- Home Health Agency
- Galveston, TX
- NPI 1659594737
-
dba University of Texas Medical Branch
- General Acute Care Hospital
- Galveston, TX
- NPI 1548226988
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1586217600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1790899200000",
"number": "1861021149",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "18333 EGRET BAY BLVD STE 140",
"city": "HOUSTON",
"state": "TX",
"postal_code": "770583239",
"telephone_number": "281-332-3001",
"fax_number": "281-332-3005"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "18333 EGRET BAY BLVD STE 140",
"city": "HOUSTON",
"state": "TX",
"postal_code": "770583239",
"telephone_number": "281-332-3001",
"fax_number": "281-332-3005"
}
],
"practiceLocations": [
{
"address_1": "500 W Medical Center Blvd",
"address_purpose": "LOCATION",
"city": "Webster",
"state": "TX",
"postal_code": "775984220",
"country_code": "US",
"telephone_number": "281-332-2511",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "200 Blossom St",
"address_purpose": "LOCATION",
"city": "Webster",
"state": "TX",
"postal_code": "775984204",
"country_code": "US",
"telephone_number": "832-632-6500",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "11800 Astoria Blvd",
"address_purpose": "LOCATION",
"city": "Houston",
"state": "TX",
"postal_code": "770896041",
"country_code": "US",
"telephone_number": "281-929-6485",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "2240 Gulf Fwy S",
"address_purpose": "LOCATION",
"city": "League City",
"state": "TX",
"postal_code": "775735143",
"country_code": "US",
"telephone_number": "409-772-1011",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "GRIFFIN",
"first_name": "TOM",
"credential": "DO",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2020-04-07",
"last_updated": "2026-10-02",
"certification_date": "2026-10-02",
"status": "A"
},
"taxonomies": [
{
"code": "207R00000X",
"taxonomy_group": "",
"desc": "Internal Medicine",
"state": "TX",
"license": "U4208",
"primary": true
},
{
"code": "208M00000X",
"taxonomy_group": "",
"desc": "Hospitalist",
"state": "TX",
"license": "U4208",
"primary": false
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "481421203",
"state": "TX"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "BCBSTX",
"identifier": "8VY978",
"state": "TX"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "481421201",
"state": "TX"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "481421204",
"state": "TX"
},
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "481421202",
"state": "TX"
}
],
"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 Oct 2, 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.