Active NPI
Syed Mustafa Hassan, MD
- Psychiatry Physician
- Katy, TX
National Provider Identifier
1043958580
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychiatry Physician
- License
- W8852
- Practice address
- 204 Bella Katy Dr
Katy, TX 77494-6821 - Phone
- (281) 778-9530
- Fax
- (281) 778-9532
- NPI assigned
- May 24, 2022
- 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 |
|---|---|---|---|---|
| Psychiatry Physician | 2084P0800X | W8852 | TX | Primary |
| Psychiatry Physician | 2084P0800X | R79439 | AZ |
Addresses
Primary practice location
204 Bella Katy Dr
Katy, TX 77494-6821
Mailing address
4502 Riverstone Blvd Ste 601
Missouri City, TX 77459-5205
Phone (281) 778-9530
Other practice location 1
4502 Riverstone Blvd Ste 601
Missouri City, TX 77459-5205
Phone (281) 778-9530
Other practice location 2
2800 E Ajo Way
Tucson, AZ 85713-6204
Phone (520) 874-6648
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)
- Not enrolled
- Credentials
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| R79439 | AZ | MD | Psychiatry Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1653350400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1788998400000",
"number": "1043958580",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "4502 RIVERSTONE BLVD STE 601",
"city": "MISSOURI CITY",
"state": "TX",
"postal_code": "774595205",
"telephone_number": "281-778-9530",
"fax_number": "281-778-9532"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "204 BELLA KATY DR",
"city": "KATY",
"state": "TX",
"postal_code": "774946821",
"telephone_number": "281-778-9530",
"fax_number": "281-778-9532"
}
],
"practiceLocations": [
{
"address_1": "4502 Riverstone Blvd Ste 601",
"address_purpose": "LOCATION",
"city": "Missouri City",
"state": "TX",
"postal_code": "774595205",
"country_code": "US",
"telephone_number": "281-778-9530",
"fax_number": "281-778-9532",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "2800 E Ajo Way",
"address_purpose": "LOCATION",
"city": "Tucson",
"state": "AZ",
"postal_code": "857136204",
"country_code": "US",
"telephone_number": "520-874-6648",
"fax_number": "520-874-7539",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "HASSAN",
"first_name": "SYED",
"middle_name": "MUSTAFA",
"name_prefix": "Dr.",
"credential": "MD",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2022-05-24",
"last_updated": "2026-09-10",
"certification_date": "2026-09-10",
"status": "A"
},
"taxonomies": [
{
"code": "2084P0800X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Psychiatry",
"state": "TX",
"license": "W8852",
"primary": true
},
{
"code": "2084P0800X",
"taxonomy_group": "",
"desc": "Psychiatry & Neurology, Psychiatry",
"state": "AZ",
"license": "R79439",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Katy, TX
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 10, 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.