Active NPI
Jillian M Diionno, PA-C
- Physician Assistant
- Hackettstown, NJ
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Physician Assistant
- License
- 25MP00312100
- Practice address
- 57 Route 46 Ste 107
Hackettstown, NJ 07840-2695 - Phone
- (908) 813-9700
- Fax
- (908) 813-2861
- NPI assigned
- Jul 25, 2013
- Last updated
- Jul 9, 2025
- 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 | 25MP00312100 | NJ | Primary |
Addresses
Primary practice location
57 Route 46 Ste 107
Hackettstown, NJ 07840-2695
Mailing address
90 Matawan Rd Ste 302
Matawan, NJ 07747-2653
Phone (732) 441-7177
Other practice location 1
1 Robertson Dr Ste 11
Bedminster, NJ 07921-1716
Phone (908) 813-9700
Other names 1
- Jillian Merrell
Electronic endpoints 2
| Type | Endpoint | Use | Affiliation |
|---|---|---|---|
| Direct Messaging Address | Jillian.DiIonno.1@21449.direct.athenahealth.com | Premier Brain and Spine, LLC | |
| Direct Messaging Address | Jillian.DiIonno.1@21449.direct.athenahealth.com | Premier Brain and Spine, LLC |
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in NJ
- 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, 2013
- Medicare assignment
- Accepts the Medicare-approved amount as payment in full
- Group practices
Practice addresses (Care Compare)
132 Grove St
Suite a
Haddonfield, NJ 08033-1224
Phone (856) 354-2211
2500 Morris Ave
Suite 220
Union, NJ 07083-5675
Phone (732) 906-9600
57 Route 46 E 107
Advocare Skylands Orthopaedics
Hackettstown, NJ 07840-2695
Phone (908) 813-9700
57 US Hwy 46
Suite 107
Hackettstown, NJ 07840-2695
Phone (908) 813-9700
Hospital & facility affiliations
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
- Credentials
- Physician Assistant
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 25MP00312100 | NJ | MD | Physician Assistant |
Practice roles
| Organization | Specialty | Status | New patients |
|---|---|---|---|
| Premier Brain and Spine LLC | Current | Accepting new patients | |
| Advocare, LLC | Current | Accepting new patients | |
| Advocare , LLC | Current | Accepting new patients | |
| Premier Brain and Spine, LLC | Current | Accepting new patients | |
| Freeman Pain Institute PA | Physician Assistant | Past | Accepting new patients |
Locations
1 Robertson Dr
Ste 11
Bedminster, NJ 07921
Phone (908) 234-9200
57 US Highway 46
Ste 107
Hackettstown, NJ 07840
132 Grove St
Ste A
Haddonfield, NJ 08033
Phone (856) 354-2211
90 Matawan Rd
Ste 302
Matawan, NJ 07747
Phone (201) 972-5568
2500 Morris Ave
Ste 220
Union, NJ 07083
Phone 7329069600312
1001 Laurel Oak Rd
Ste A2
Voorhees, NJ 08043
Phone (856) 566-8600
Interoperability endpoints
- jillian.diionno.1@21449.direct.athenahealth.com
Organizations & group practices 5
Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.
-
- Pediatrics Physician
- Marlton, NJ
- NPI 1770538696
-
dba Redefine Healthcare
- Neurological Surgery Physician
- Union, NJ
- NPI 1922771377
-
dba Advocare Berlin Medical Associates (DME)
- Internal Medicine Physician
- Manahawkin, NJ
- NPI 1912762162
-
dba Redefine Healthcare
- Durable Medical Equipment & Medical Supplies
- Shrewsbury, NJ
- NPI 1427944156
-
dba Redefine Healthcare
- Physical Medicine & Rehabilitation Physician
- Union, NJ
- NPI 1689770539
Physician Assistant
Hospital & facility affiliations 3
Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.
-
- General Acute Care Hospital
- Hackettstown, NJ
- NPI 1518969419
-
dba Kessler Rehabilitation Center
- Rehabilitation Hospital
- West Orange, NJ
- NPI 1013919620
Inpatient rehabilitation facility
-
- General Acute Care Hospital
- Phillipsburg, NJ
- NPI 1760488266
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1374710400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1752019200000",
"number": "1194167577",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "90 MATAWAN RD STE 302",
"city": "MATAWAN",
"state": "NJ",
"postal_code": "077472653",
"telephone_number": "732-441-7177",
"fax_number": "732-441-7165"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "57 ROUTE 46 STE 107",
"city": "HACKETTSTOWN",
"state": "NJ",
"postal_code": "078402695",
"telephone_number": "908-813-9700",
"fax_number": "908-813-2861"
}
],
"practiceLocations": [
{
"address_1": "1 Robertson Dr Ste 11",
"address_purpose": "LOCATION",
"city": "Bedminster",
"state": "NJ",
"postal_code": "079211716",
"country_code": "US",
"telephone_number": "908-813-9700",
"fax_number": "908-813-2861",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "DIIONNO",
"first_name": "JILLIAN",
"middle_name": "M",
"credential": "PA-C",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2013-07-25",
"last_updated": "2025-07-09",
"certification_date": "2025-07-09",
"status": "A"
},
"taxonomies": [
{
"code": "363A00000X",
"taxonomy_group": "",
"desc": "Physician Assistant",
"state": "NJ",
"license": "25MP00312100",
"primary": true
}
],
"identifiers": [],
"endpoints": [
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "Jillian.DiIonno.1@21449.direct.athenahealth.com",
"affiliation": "Y",
"affiliationName": "Premier Brain and Spine, LLC",
"address_1": "57 Route 46 Ste 107",
"city": "Hackettstown",
"state": "NJ",
"country_code": "US",
"postal_code": "078402695",
"country_name": "United States",
"address_type": "DOM"
},
{
"endpointType": "DIRECT",
"endpointTypeDescription": "Direct Messaging Address",
"endpoint": "Jillian.DiIonno.1@21449.direct.athenahealth.com",
"affiliation": "Y",
"affiliationName": "Premier Brain and Spine, LLC",
"address_1": "1 Robertson Dr Ste 11",
"city": "Bedminster",
"state": "NJ",
"country_code": "US",
"postal_code": "079211716",
"country_name": "United States",
"address_type": "DOM"
}
],
"other_names": [
{
"first_name": "JILLIAN",
"last_name": "MERRELL",
"credential": "PA-C",
"code": "1",
"type": "Former Name"
}
]
}
Other providers in Hackettstown, NJ
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 9, 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.