Active NPI
Sonya Beth Chao, D.O.
- Pediatrics Physician
- Pflugerville, TX
National Provider Identifier
1306041231
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pediatrics Physician
- License
- M5666
- Practice address
- 305 N Heatherwilde Blvd Ste 200
Pflugerville, TX 78660-4192 - Phone
- (877) 637-8387
- NPI assigned
- Jun 20, 2007
- 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 |
|---|---|---|---|---|
| Pediatrics Physician | 208000000X | M5666 | TX | Primary |
Addresses
Primary practice location
305 N Heatherwilde Blvd Ste 200
Pflugerville, TX 78660-4192
Mailing address
905 Hidden Glen Dr
Round Rock, TX 78681-2424
Phone (512) 366-2125
Other identifiers 2
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 183763501 | Medicaid | TX | |
| M5666 | Other | TX | STATE LICENSE |
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 Osteopathy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| M5666 | TX | MD | Pediatric Emergency Medicine (Emergency Medicine) Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1182297600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1782172800000",
"number": "1306041231",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "905 HIDDEN GLEN DR",
"city": "ROUND ROCK",
"state": "TX",
"postal_code": "786812424",
"telephone_number": "512-366-2125"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "305 N HEATHERWILDE BLVD STE 200",
"city": "PFLUGERVILLE",
"state": "TX",
"postal_code": "786604192",
"telephone_number": "877-637-8387"
}
],
"practiceLocations": [],
"basic": {
"last_name": "CHAO",
"first_name": "SONYA",
"middle_name": "BETH",
"name_prefix": "Dr.",
"credential": "D.O.",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2007-06-20",
"last_updated": "2026-06-23",
"certification_date": "2026-06-23",
"status": "A"
},
"taxonomies": [
{
"code": "208000000X",
"taxonomy_group": "",
"desc": "Pediatrics",
"state": "TX",
"license": "M5666",
"primary": true
}
],
"identifiers": [
{
"code": "05",
"desc": "MEDICAID",
"issuer": null,
"identifier": "183763501",
"state": "TX"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "STATE LICENSE",
"identifier": "M5666",
"state": "TX"
}
],
"endpoints": [],
"other_names": []
}Other providers in Pflugerville, TX
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 23, 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.