Active NPI
William D Wallace, DO
- Critical Care Medicine (Internal Medicine) Physician
- Monroeville, PA
National Provider Identifier
1104387398
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Critical Care Medicine (Internal Medicine) Physician
- License
- OS026321
- Practice address
- 3824 Northern Pike Ste 820
Monroeville, PA 15146-2141 - Phone
- (412) 457-0424
- NPI assigned
- Mar 29, 2019
- 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 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Critical Care Medicine (Internal Medicine) Physician | 207RC0200X | 34.015784 | OH | |
| Pulmonary Disease Physician | 207RP1001X | 34.015784 | OH | |
| Critical Care Medicine (Internal Medicine) Physician | 207RC0200X | OS026321 | PA | Primary |
Addresses
Primary practice location
3824 Northern Pike Ste 820
Monroeville, PA 15146-2141
Mailing address
2 Allegheny Ctr Ste 530
Pittsburgh, PA 15212-5404
Other practice location 1
9500 Euclid Ave # Na-23
Cleveland, OH 44195-0001
Phone (216) 444-2200
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: Yes
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Doctor of Osteopathy
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 34.015784 | OH | MD | Internal Medicine Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1553817600000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1785974400000",
"number": "1104387398",
"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": "3824 NORTHERN PIKE STE 820",
"city": "MONROEVILLE",
"state": "PA",
"postal_code": "151462141",
"telephone_number": "412-457-0424"
}
],
"practiceLocations": [
{
"address_1": "9500 Euclid Ave # Na-23",
"address_purpose": "LOCATION",
"city": "Cleveland",
"state": "OH",
"postal_code": "441950001",
"country_code": "US",
"telephone_number": "216-444-2200",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "WALLACE",
"first_name": "WILLIAM",
"middle_name": "D",
"credential": "DO",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2019-03-29",
"last_updated": "2026-08-06",
"certification_date": "2026-08-06",
"status": "A"
},
"taxonomies": [
{
"code": "207RC0200X",
"taxonomy_group": "",
"desc": "Internal Medicine, Critical Care Medicine",
"state": "OH",
"license": "34.015784",
"primary": false
},
{
"code": "207RP1001X",
"taxonomy_group": "",
"desc": "Internal Medicine, Pulmonary Disease",
"state": "OH",
"license": "34.015784",
"primary": false
},
{
"code": "207RC0200X",
"taxonomy_group": "",
"desc": "Internal Medicine, Critical Care Medicine",
"state": "PA",
"license": "OS026321",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Monroeville, PA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 6, 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.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.