Active NPI
Ortho Ma LLC
- Physician Assistant
- Longmeadow, MA
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Physician Assistant
- Legal business name
- ORTHO MA LLC
- Practice address
- 53 Briarcliff Rd
Longmeadow, MA 01106-1324 - Phone
- (413) 335-2606
- NPI assigned
- Aug 30, 2024
- Last updated
- Aug 18, 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
- Joseph Zwirko
- Title
- PA-C
- Phone
- (413) 335-2606
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 |
|---|---|---|---|---|
| Physician Assistant | 363A00000X | NU | Primary |
Addresses
Primary practice location
53 Briarcliff Rd
Longmeadow, MA 01106-1324
Mailing address
53 Briarcliff Rd
Longmeadow, MA 01106-1324
Other practice location 1
35 Post Office Park Ste 6
Wilbraham, MA 01095-1172
Phone (413) 836-7846
Other practice location 2
53 Southampton Rd
Westfield, MA 01085-1786
Phone (413) 836-7846
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MA
Enrollment records 2
Laboratory certificates & supplier records
Derived by NPIMapThese CMS records do not include an NPI. They are shown because their name and street address match this provider’s.
Medicare medical equipment & supply locations
| Supplier | Supplies | Medicare assignment |
|---|---|---|
| Ortho Ma LLC | Canes and/or Crutches|Walkers|Orthoses: Off-The-Shelf | Accepts assignment |
National Provider Directory
National Provider DirectoryLocations
35 Post Office Park
Ste 6
Wilbraham, MA 01095
Phone (413) 836-7846
Practitioners & affiliated clinicians
Practitioners 23
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.
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- Surgical Physician Assistant
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- NPI 1013268218
-
- Physician Assistant
- Springfield, MA
- NPI 1871017889
-
- Physician Assistant
- Worcester, MA
- NPI 1215522099
-
- Surgical Physician Assistant
- Springfield, MA
- NPI 1356573265
-
- Physician Assistant
- Springfield, MA
- NPI 1023485133
-
- Family Nurse Practitioner
- Pittsfield, MA
- NPI 1396111910
-
- Physician Assistant
- Springfield, MA
- NPI 1013938356
-
- Surgical Physician Assistant
- Springfield, MA
- NPI 1609326552
-
- Physician Assistant
- Springfield, MA
- NPI 1801306758
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1724976000000",
"enumeration_type": "NPI-2",
"last_updated_epoch": "1755475200000",
"number": "1730913773",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "53 BRIARCLIFF RD",
"city": "LONGMEADOW",
"state": "MA",
"postal_code": "011061324"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "53 BRIARCLIFF RD",
"city": "LONGMEADOW",
"state": "MA",
"postal_code": "011061324",
"telephone_number": "413-335-2606"
}
],
"practiceLocations": [
{
"address_1": "35 Post Office Park Ste 6",
"address_purpose": "LOCATION",
"city": "Wilbraham",
"state": "MA",
"postal_code": "010951172",
"country_code": "US",
"telephone_number": "413-836-7846",
"country_name": "United States",
"address_type": "DOM"
},
{
"address_1": "53 Southampton Rd",
"address_purpose": "LOCATION",
"city": "Westfield",
"state": "MA",
"postal_code": "010851786",
"country_code": "US",
"telephone_number": "413-836-7846",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"organization_name": "ORTHO MA LLC",
"organizational_subpart": "NO",
"enumeration_date": "2024-08-30",
"last_updated": "2025-08-18",
"certification_date": "2025-08-18",
"status": "A",
"authorized_official_last_name": "ZWIRKO",
"authorized_official_first_name": "JOSEPH",
"authorized_official_title_or_position": "PA-C",
"authorized_official_telephone_number": "413-335-2606"
},
"taxonomies": [
{
"code": "363A00000X",
"taxonomy_group": "",
"desc": "Physician Assistant",
"state": "NU",
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Longmeadow, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 18, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments.
- 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.