Active NPI
Maria M. Williams, APN
- Psychiatric/Mental Health Nurse Practitioner
- Belle Mead, NJ
National Provider Identifier
1649117755
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychiatric/Mental Health Nurse Practitioner
- License
- 26NJ15565800
- Practice address
- 252 County Road 601
Belle Mead, NJ 08502-3923 - Phone
- (908) 281-1000
- NPI assigned
- Apr 29, 2026
- 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 |
|---|---|---|---|---|
| Psychiatric/Mental Health Nurse Practitioner | 363LP0808X | 26NJ15565800 | NJ | Primary |
Addresses
Primary practice location
252 County Road 601
Belle Mead, NJ 08502-3923
Mailing address
9 Lilac LN
Somerset, NJ 08873-2807
Phone (732) 718-2083
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
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 26NJ15565800 | NJ | MD | Psychiatric/Mental Health Nurse Practitioner |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1777420800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1777420800000",
"number": "1649117755",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "9 LILAC LN",
"city": "SOMERSET",
"state": "NJ",
"postal_code": "088732807",
"telephone_number": "732-718-2083"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "252 COUNTY ROAD 601",
"city": "BELLE MEAD",
"state": "NJ",
"postal_code": "085023923",
"telephone_number": "908-281-1000"
}
],
"practiceLocations": [],
"basic": {
"last_name": "WILLIAMS",
"first_name": "MARIA",
"middle_name": "M.",
"name_prefix": "Mrs.",
"credential": "APN",
"sole_proprietor": "NO",
"sex": "F",
"enumeration_date": "2026-04-29",
"last_updated": "2026-04-29",
"certification_date": "2026-04-29",
"status": "A"
},
"taxonomies": [
{
"code": "363LP0808X",
"taxonomy_group": "",
"desc": "Nurse Practitioner, Psychiatric/Mental Health",
"state": "NJ",
"license": "26NJ15565800",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Belle Mead, NJ
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 29, 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.