Active NPI
Marissa Rose Demers, PA-C
- Medical Physician Assistant
- Bristol, CT
National Provider Identifier
1891587580
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Medical Physician Assistant
- License
- 7110
- Practice address
- 539 Farmington Ave
Bristol, CT 06010-3931 - Phone
- (860) 314-6046
- NPI assigned
- May 20, 2025
- Sex
- Female
- Sole proprietor
- No
Organizations & group practices 1
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.
-
- General Practice Physician
- Bristol, CT
- NPI 1649265679
CT
Hospital & facility affiliations 1
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
Care Compare profile
Medicare Care Compare- Specialty
- Physician Assistant
- Education
- Other, 2025
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
- Bristol Hospital Multi Specialty Group, Inc.
Practice addresses (Care Compare)
539 Farmington Ave
Bristol, CT 06010-3931
Phone (860) 314-6046
Hospital & facility affiliations
- Bristol Hospital
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in CT
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: Yes
- Power mobility devices: Yes
- Hospice: No
Medicare enrollment records 1
Medicare enrollment files| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20251027000656 | CT | Practitioner - Physician Assistant | 5991294423 | Reassigns benefits to 1 organization |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Physician Assistant
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 7110 | CT | MD | Pharmacist |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Bristol Hospital Multi Specialty Group, Inc | Current | Accepting new patients |
Locations
41 Brewster Rd
Bristol, CT 06010
Phone (800) 585-3000
539 Farmington Ave
Bristol, CT 06010
Phone (860) 314-6046
Specialties & licenses 1
NPPES NPI Registry| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Medical Physician Assistant | 363AM0700X | 7110 | CT | Primary |
Addresses
NPPES NPI RegistryPrimary practice location
539 Farmington Ave
Bristol, CT 06010-3931
Mailing address
11 Maple St
Somers, CT 06071-1803
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format, last updated by the provider on May 20, 2025.
{
"created_epoch": "1747699200000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1747699200000",
"number": "1891587580",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "11 MAPLE ST",
"city": "SOMERS",
"state": "CT",
"postal_code": "060711803"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "539 FARMINGTON AVE",
"city": "BRISTOL",
"state": "CT",
"postal_code": "060103931",
"telephone_number": "860-314-6046"
}
],
"practiceLocations": [],
"basic": {
"last_name": "DEMERS",
"first_name": "MARISSA",
"middle_name": "ROSE",
"credential": "PA-C",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2025-05-20",
"last_updated": "2025-05-20",
"certification_date": "2025-05-20",
"status": "A"
},
"taxonomies": [
{
"code": "363AM0700X",
"taxonomy_group": "",
"desc": "Physician Assistant, Medical",
"state": "CT",
"license": "7110",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}
Other providers in Bristol, CT
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on May 20, 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.