Active NPI
Alaina Williams
- Critical Care Medicine Nurse Practitioner
- Pittsburgh, PA
National Provider Identifier
1114858438
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Critical Care Medicine Nurse Practitioner
- License
- SP034500
- Practice address
- 4815 Liberty Ave Ste 204
Pittsburgh, PA 15224-2156 - Phone
- (412) 578-4226
- Fax
- (412) 578-4281
- NPI assigned
- May 26, 2026
- 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 |
|---|---|---|---|---|
| Critical Care Medicine Nurse Practitioner | 363LC0200X | SP034500 | PA | Primary |
Addresses
Primary practice location
4815 Liberty Ave Ste 204
Pittsburgh, PA 15224-2156
Mailing address
2 Allegheny Ctr Ste 530
Pittsburgh, PA 15212-5404
Other practice location 1
4800 Friendship Ave
Pittsburgh, PA 15224-1722
Phone (412) 359-6656
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: No
Care Compare profile
Medicare Care Compare- Specialty
- Nurse Practitioner
- Education
- Other, 2025
- Medicare assignment
- May accept Medicare assignment
Practice addresses (Care Compare)
2 Allegheny Ctr
Suite 530
Pittsburgh, PA 15212-5400
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| SP034500 | PA | MD | Critical Care Medicine Nurse Practitioner |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1779753600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1784160000000",
"number": "1114858438",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "2 ALLEGHENY CTR STE 530",
"city": "PITTSBURGH",
"state": "PA",
"postal_code": "152125404"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "4815 LIBERTY AVE STE 204",
"city": "PITTSBURGH",
"state": "PA",
"postal_code": "152242156",
"telephone_number": "412-578-4226",
"fax_number": "412-578-4281"
}
],
"practiceLocations": [
{
"address_1": "4800 Friendship Ave",
"address_purpose": "LOCATION",
"city": "Pittsburgh",
"state": "PA",
"postal_code": "152241722",
"country_code": "US",
"telephone_number": "412-359-6656",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "WILLIAMS",
"first_name": "ALAINA",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2026-05-26",
"last_updated": "2026-07-16",
"certification_date": "2026-07-16",
"status": "A"
},
"taxonomies": [
{
"code": "363LC0200X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Critical Care Medicine",
"state": "PA",
"license": "SP034500",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Pittsburgh, PA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 16, 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.