Active NPI
Margaret Dwiggins
- Mental Health Counselor
- Richardson, TX
National Provider Identifier
1447649934
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Mental Health Counselor
- License
- 100973
- Practice address
- 2400 Lakeside Blvd Ste 115
Richardson, TX 75082-4341 - Phone
- (469) 596-0779
- NPI assigned
- Jan 21, 2015
- Sex
- Female
- 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 |
|---|---|---|---|---|
| Mental Health Counselor | 101YM0800X | 100973 | TX | Primary |
Addresses
Primary practice location
2400 Lakeside Blvd Ste 115
Richardson, TX 75082-4341
Mailing address
PO Box 796621
Dallas, TX 75379-6621
Phone (469) 596-0779
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
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 100973 | TX | MD | Mental Health Counselor |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1421798400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1772150400000",
"number": "1447649934",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 796621",
"city": "DALLAS",
"state": "TX",
"postal_code": "753796621",
"telephone_number": "469-596-0779"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "2400 LAKESIDE BLVD STE 115",
"city": "RICHARDSON",
"state": "TX",
"postal_code": "750824341",
"telephone_number": "469-596-0779"
}
],
"practiceLocations": [],
"basic": {
"last_name": "DWIGGINS",
"first_name": "MARGARET",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2015-01-21",
"last_updated": "2026-02-27",
"certification_date": "2026-02-27",
"status": "A"
},
"taxonomies": [
{
"code": "101YM0800X",
"taxonomy_group": "",
"desc": "Counselor, Mental Health",
"state": "TX",
"license": "100973",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Richardson, TX
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 27, 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.