Active NPI
At Holding Company PLLC
- Vascular Surgery Physician
- Altoona, PA
National Provider Identifier
1578468146
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Vascular Surgery Physician
- Legal business name
- AT HOLDING COMPANY PLLC
- Practice address
- 332 W Plank Rd
Altoona, PA 16602-3016 - Phone
- (814) 400-3569
- NPI assigned
- Oct 13, 2026
- Last updated
- Oct 13, 2026
- Organization subpart
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Authorized official
- Name
- Nicholas James Madden, DO
- Title
- Owner
- Phone
- (814) 932-6178
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Vascular Surgery Physician | 2086S0129X | NU | Primary |
Addresses
Primary practice location
332 W Plank Rd
Altoona, PA 16602-3016
Mailing address
332 W Plank Rd
Altoona, PA 16602-3016
Phone (814) 400-3569
Other identifiers 2
| Identifier | Type | State | Issuer |
|---|---|---|---|
| OS017524 | Other | PA | PENNSYLVANIA BUREAU OF PROFESSIONAL LICENSING |
| 3620 | Other | PA | AMERICAN OSTEOPATHIC BOARD OF SURGERY |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1791849600000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1791849600000",
"number": "1578468146",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "332 W PLANK RD",
"city": "ALTOONA",
"state": "PA",
"postal_code": "166023016",
"telephone_number": "814-400-3569"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "332 W PLANK RD",
"city": "ALTOONA",
"state": "PA",
"postal_code": "166023016",
"telephone_number": "814-400-3569"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "AT HOLDING COMPANY PLLC",
"organizational_subpart": "NO",
"enumeration_date": "2026-10-13",
"last_updated": "2026-10-13",
"certification_date": "2026-10-13",
"status": "A",
"authorized_official_last_name": "MADDEN",
"authorized_official_first_name": "NICHOLAS",
"authorized_official_middle_name": "JAMES",
"authorized_official_title_or_position": "OWNER",
"authorized_official_telephone_number": "814-932-6178",
"authorized_official_credential": "DO"
},
"taxonomies": [
{
"code": "2086S0129X",
"taxonomy_group": "",
"desc": "Surgery, Vascular Surgery",
"state": "NU",
"license": null,
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "PENNSYLVANIA BUREAU OF PROFESSIONAL LICENSING",
"identifier": "OS017524",
"state": "PA"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "AMERICAN OSTEOPATHIC BOARD OF SURGERY",
"identifier": "3620",
"state": "PA"
}
],
"endpoints": [],
"other_names": []
}Other providers in Altoona, PA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Oct 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.