Active NPI
Katrina Sandra Laz-Rupacz, PA-C
- Physician Assistant
- Springfield, MA
National Provider Identifier
1346818697
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Physician Assistant
- Practice address
- 3455 Main St Ste 5
Springfield, MA 01107-1147 - Phone
- (413) 733-9600
- Fax
- (413) 732-6534
- NPI assigned
- Jun 14, 2021
- Sex
- Female
- Sole proprietor
- No
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 1
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Physician Assistant | 363A00000X | Primary |
Addresses
Primary practice location
3455 Main St Ste 5
Springfield, MA 01107-1147
Mailing address
3455 Main St Ste 5
Springfield, MA 01107-1147
Phone (413) 733-9600
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in MA
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: No
Enrollment records 1
Care Compare profile
Medicare Care Compare- Specialty
- Physician Assistant
- Education
- Other, 2021
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
3455 Main St
Suite 5
Springfield, MA 01107-1147
Phone (413) 733-9600
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Physician Assistant
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| New England Dermatology, P.C. | Current | Accepting new patients | |
| Algo Health LTD | Past | Accepting new patients |
Locations
3455 Main St
Ste 5
Springfield, MA 01107
Phone (413) 733-9600
Organizations & group practices 2
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.
-
- Dermatology Physician
- Springfield, MA
- NPI 1356348098
-
- Psychiatry Physician
- Mattapan, MA
- NPI 1659238384
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1623628800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1759104000000",
"number": "1346818697",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "3455 MAIN ST STE 5",
"city": "SPRINGFIELD",
"state": "MA",
"postal_code": "011071147",
"telephone_number": "413-733-9600",
"fax_number": "413-732-6534"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3455 MAIN ST STE 5",
"city": "SPRINGFIELD",
"state": "MA",
"postal_code": "011071147",
"telephone_number": "413-733-9600",
"fax_number": "413-732-6534"
}
],
"practiceLocations": [],
"basic": {
"last_name": "LAZ-RUPACZ",
"first_name": "KATRINA",
"middle_name": "SANDRA",
"credential": "PA-C",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2021-06-14",
"last_updated": "2025-09-29",
"certification_date": "2025-09-29",
"status": "A"
},
"taxonomies": [
{
"code": "363A00000X",
"taxonomy_group": "",
"desc": "Physician Assistant",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Springfield, MA
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 29, 2025; 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.
- 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.