Active NPI
Defiance Medical PLLC
- Sports Medicine (Physical Medicine & Rehabilitation) Physician
- New York, NY
National Provider Identifier
1417819970
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Sports Medicine (Physical Medicine & Rehabilitation) Physician
- Legal business name
- DEFIANCE MEDICAL PLLC
- Practice address
- 8 W 36TH St FL 5
New York, NY 10018-9776 - Phone
- (929) 314-0119
- NPI assigned
- Dec 2, 2025
- 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
- Dr. Xiao Wei Liu, MD
- Title
- Founder
- Phone
- (646) 750-0069
Authorized official NPPES reports the official by name only. The link goes to the one practitioner connected to this organization with that name.
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Sports Medicine (Physical Medicine & Rehabilitation) Physician | 2081S0010X | Primary |
Addresses
Primary practice location
8 W 36TH St FL 5
New York, NY 10018-9776
Mailing address
6278 Forest Ave FL 2
Ridgewood, NY 11385-2010
National Provider Directory
National Provider DirectoryPractitioners & affiliated clinicians
Practitioners 1
Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles.
-
- Sports Medicine (Physical Medicine & Rehabilitation) Physician
- Manhattan, NY
- NPI 1104445584
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1764633600000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1778716800000",
"number": "1417819970",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "6278 FOREST AVE FL 2",
"city": "RIDGEWOOD",
"state": "NY",
"postal_code": "113852010"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "8 W 36TH ST FL 5",
"city": "NEW YORK",
"state": "NY",
"postal_code": "100189776",
"telephone_number": "929-314-0119"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "DEFIANCE MEDICAL PLLC",
"organizational_subpart": "NO",
"enumeration_date": "2025-12-02",
"last_updated": "2026-05-14",
"certification_date": "2026-05-14",
"status": "A",
"authorized_official_last_name": "LIU",
"authorized_official_first_name": "XIAO WEI",
"authorized_official_title_or_position": "FOUNDER",
"authorized_official_telephone_number": "646-750-0069",
"authorized_official_name_prefix": "Dr.",
"authorized_official_credential": "MD"
},
"taxonomies": [
{
"code": "2081S0010X",
"taxonomy_group": "193200000X MULTI-SPECIALTY GROUP",
"desc": "Physical Medicine & Rehabilitation, Sports Medicine",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in New York, NY
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 14, 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.