Active NPI
Marianne Biddle, R.N., M.S.,C.S.
- Mental Health Counselor
- Newark, DE
National Provider Identifier
1013176478
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Mental Health Counselor
- License
- LE0000144
- Practice address
- 27 Green Meadow CT
Newark, DE 19711-2583 - Phone
- (302) 368-1582
- NPI assigned
- Jun 2, 2008
- Sex
- Female
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Mental Health Counselor | 101YM0800X | LE0000144 | DE | Primary |
| Mental Health Counselor | 101YM0800X | LEOOOO144 | DE |
Addresses
Primary practice location
27 Green Meadow CT
Newark, DE 19711-2583
Mailing address
27 Green Meadow CT
Newark, DE 19711-2583
Phone (302) 368-1582
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Not listed in the public Medicare enrollment file
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Not enrolled
- Credentials
- Master of Science, Registered Nurse
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| LE0000144 | DE | MD | Mental Health Counselor |
| LEOOOO144 | DE | MD | Mental Health Counselor |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1212364800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1786838400000",
"number": "1013176478",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "27 GREEN MEADOW CT",
"city": "NEWARK",
"state": "DE",
"postal_code": "197112583",
"telephone_number": "302-368-1582"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "27 GREEN MEADOW CT",
"city": "NEWARK",
"state": "DE",
"postal_code": "197112583",
"telephone_number": "302-368-1582"
}
],
"practiceLocations": [],
"basic": {
"last_name": "BIDDLE",
"first_name": "MARIANNE",
"name_prefix": "Ms.",
"credential": "R.N., M.S.,C.S.",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2008-06-02",
"last_updated": "2026-08-16",
"status": "A"
},
"taxonomies": [
{
"code": "101YM0800X",
"taxonomy_group": "",
"desc": "Counselor, Mental Health",
"state": "DE",
"license": "LE0000144",
"primary": true
},
{
"code": "101YM0800X",
"taxonomy_group": "",
"desc": "Counselor, Mental Health",
"state": "DE",
"license": "LEOOOO144",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Newark, DE
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 16, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.