Active NPI
Orthopaedic Surgical Associates of Lowell, P.C.
Doing business as Therafit
- Physical Therapist
- Lowell, MA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Physical Therapist
- Legal business name
- ORTHOPAEDIC SURGICAL ASSOCIATES OF LOWELL, P.C.
- Doing business as
- Therafit
- Practice address
- 176 Walker St
Lowell, MA 01854-3164 - Phone
- (978) 452-9252
- NPI assigned
- Dec 7, 2023
- Last updated
- Nov 13, 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
- Mark A Lapp
- Title
- MD
- Phone
- (978) 454-0706
Authorized official NPPES reports the official by name only. The link goes to the one practitioner with that name whose NPPES practice address or phone number is this organization’s.
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Physical Therapist | 225100000X | NU | Primary |
Addresses
Primary practice location
176 Walker St
Lowell, MA 01854-3164
Mailing address
14 Research PL
North Chelmsford, MA 01863-2460
Other names 1
- Therafit
Electronic endpoints 1
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| CONNECT URL | https://cobiusconnect.cobius.com:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service | Other | Cobius Healthcare Solutions |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MA
Enrollment records 2
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| O20051108000244 | MA | Part B Supplier - Clinic/Group Practice | 4880506484 |
Receives reassigned benefits from 46 practitioners 1 other NPI on this enrollment This NPI is an additional NPI on the enrollment Practice locations: Lowell, MA; Westford, MA; North Chelmsford, MA; Chelmsford, MA |
| O20250108000121 | MA | DME Supplier - Independently-Practicing Physical Therapist | 4880506484 | Practice locations: Lowell, MA |
Other NPIs with the same Medicare PAC ID 1
NPIs whose Medicare enrollments share a PECOS associate control ID (the same enrolled entity).
-
- Orthopaedic Surgery Physician
- North Chelmsford, MA
- NPI 1457361040
4880506484
Other NPIs on the same Medicare enrollment 1
NPIs listed together on one Medicare enrollment, typically parts of the same organization.
-
- Orthopaedic Surgery Physician
- North Chelmsford, MA
- NPI 1457361040
O20051108000244
National Provider Directory
National Provider Directory- Tax ID family
- Orthopaedic Surgical Assoc
Other organizations with this tax ID 2
Organizations that report the same tax identification number in the National Provider Directory.
-
dba Therafit
- Occupational Therapist
- Lowell, MA
- NPI 1205699758
-
dba Chelmsford Imaging
- Diagnostic Radiology Physician
- Chelmsford, MA
- NPI 1821820366
Locations
176 Walker St
Lowell, MA 01854
Phone (978) 452-9252
Practitioners & affiliated clinicians
Practitioners 17
Individual providers connected to this organization through Medicare benefit reassignment, Care Compare group membership or National Provider Directory roles, and the practitioner matching its NPPES authorized official.
-
- Orthopaedic Surgery of the Spine Physician
- North Chelmsford, MA
- NPI 1881664977
-
- Vascular & Interventional Radiology Physician
- Boston, MA
- NPI 1366437170
-
- Interventional Pain Medicine Physician
- North Chelmsford, MA
- NPI 1326466525
-
- Physical Therapist
- Lowell, MA
- NPI 1669567533
-
- Physician Assistant
- North Chelmsford, MA
- NPI 1699117697
-
- Physical Therapist
- Lowell, MA
- NPI 1154041291
-
- Foot & Ankle Surgery Podiatrist
- North Chelmsford, MA
- NPI 1952890220
-
- Internal Medicine Physician
- Boston, MA
- NPI 1205285558
-
- Diagnostic Radiology Physician
- Peabody, MA
- NPI 1124032271
-
- Diagnostic Radiology Physician
- Roxbury Crossing, MA
- NPI 1871517128
-
- Physical Therapist
- Lowell, MA
- NPI 1033839170
-
- Specialist
- Roxbury Crossing, MA
- NPI 1164417994
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1701907200000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1762992000000",
"number": "1730956913",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "14 RESEARCH PL",
"city": "NORTH CHELMSFORD",
"state": "MA",
"postal_code": "018632460"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "176 WALKER ST",
"city": "LOWELL",
"state": "MA",
"postal_code": "018543164",
"telephone_number": "978-452-9252"
}
],
"practiceLocations": [],
"basic": {
"organization_name": "ORTHOPAEDIC SURGICAL ASSOCIATES OF LOWELL, P.C.",
"organizational_subpart": "NO",
"enumeration_date": "2023-12-07",
"last_updated": "2025-11-13",
"certification_date": "2025-11-13",
"status": "A",
"authorized_official_last_name": "LAPP",
"authorized_official_first_name": "MARK",
"authorized_official_middle_name": "A",
"authorized_official_title_or_position": "MD",
"authorized_official_telephone_number": "978-454-0706"
},
"taxonomies": [
{
"code": "225100000X",
"taxonomy_group": "",
"desc": "Physical Therapist",
"state": "NU",
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [
{
"endpointType": "CONNECT",
"endpointTypeDescription": "CONNECT URL",
"endpoint": "https://cobiusconnect.cobius.com:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service",
"affiliation": "Y",
"endpointDescription": "2.16.840.1.113883.3.1068.1",
"affiliationName": "Cobius Healthcare Solutions",
"use": "OTHER",
"useDescription": "Other",
"useOtherDescription": "CMS esMD eMDR",
"address_1": "2720 Dundee Rd # 302",
"city": "Northbrook",
"state": "IL",
"country_code": "US",
"postal_code": "600622609",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": [
{
"organization_name": "Therafit",
"code": "3",
"type": "Doing Business As"
}
]
}
Other providers in Lowell, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Nov 13, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.