Active NPI
Holly J Witt, M. S.
- Speech-Language Pathologist
- Dallas, TX
National Provider Identifier
1962492918
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Speech-Language Pathologist
- License
- 10384
- Practice address
- 4450 Sigma Rd
#120
Dallas, TX 75244-4529 - Phone
- (972) 991-6383
- Fax
- (972) 991-3132
- NPI assigned
- Oct 21, 2005
- Sex
- Female
- 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 |
|---|---|---|---|---|
| Speech-Language Pathologist | 235Z00000X | 10384 | TX | Primary |
Addresses
Primary practice location
4450 Sigma Rd
#120
Dallas, TX 75244-4529
Mailing address
4450 Sigma Rd
Dallas, TX 75244-4529
Phone (972) 991-6383
Other identifiers 1
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 528322 | Other | TX | BLUE CROSS PROVIDER NUMBE |
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
- Master of Science
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1129852800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1962492918",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "4450 SIGMA RD",
"city": "DALLAS",
"state": "TX",
"postal_code": "752444529",
"telephone_number": "972-991-6383",
"fax_number": "972-991-3132"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "4450 SIGMA RD",
"address_2": "#120",
"city": "DALLAS",
"state": "TX",
"postal_code": "752444529",
"telephone_number": "972-991-6383",
"fax_number": "972-991-3132"
}
],
"practiceLocations": [],
"basic": {
"last_name": "WITT",
"first_name": "HOLLY",
"middle_name": "J",
"credential": "M. S.",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2005-10-21",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "235Z00000X",
"taxonomy_group": "",
"desc": "Speech-Language Pathologist",
"state": "TX",
"license": "10384",
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "BLUE CROSS PROVIDER NUMBE",
"identifier": "528322",
"state": "TX"
}
],
"endpoints": [],
"other_names": []
}Other providers in Dallas, TX
- Without Judgment Therapy Group,PLLC
- Angela Danielle Withrow, M.S. CCC-SLP
- Matthew Witkin, MD
- Meredith Christine Witkowski, CRNA
- Austin Witt, MD
- Donna Lynn Witten, M.S. P.T.
- Gillian Victoria Witten
- Gwendolyn Ann Wittenbrook, MA, RD, CSP, LD
- David Michael Wittkopf, LCDC, LPC-A
- Patricia Ann Wittkower, WHNP-C
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.