Active NPI
Marilyn Ruiz, M.D.
- Pediatrics Physician
- Mendham, NJ
National Provider Identifier
1740485457
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Pediatrics Physician
- License
- MA049891
- Practice address
- 3 Burnett Brook Dr
Mendham, NJ 07945-2102 - Phone
- (973) 543-0667
- Fax
- (973) 543-0667
- NPI assigned
- Jun 21, 2007
- 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 |
|---|---|---|---|---|
| Pediatrics Physician | 208000000X | MA049891 | NJ | Primary |
| Developmental - Behavioral Pediatrics Physician | 2080P0006X | MA049891 | NJ |
Addresses
Primary practice location
3 Burnett Brook Dr
Mendham, NJ 07945-2102
Mailing address
3 Burnett Brook Dr
Mendham, NJ 07945-2102
Phone (973) 543-0667
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
- Doctor of Medicine
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| MA049891 | NJ | MD | Developmental - Behavioral Pediatrics Physician |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1182384000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757548800000",
"number": "1740485457",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "3 BURNETT BROOK DR",
"city": "MENDHAM",
"state": "NJ",
"postal_code": "079452102",
"telephone_number": "973-543-0667",
"fax_number": "973-543-0667"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "3 BURNETT BROOK DR",
"city": "MENDHAM",
"state": "NJ",
"postal_code": "079452102",
"telephone_number": "973-543-0667",
"fax_number": "973-543-0667"
}
],
"practiceLocations": [],
"basic": {
"last_name": "RUIZ",
"first_name": "MARILYN",
"credential": "M.D.",
"sole_proprietor": "YES",
"sex": "F",
"enumeration_date": "2007-06-21",
"last_updated": "2025-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "208000000X",
"taxonomy_group": "",
"desc": "Pediatrics",
"state": "NJ",
"license": "MA049891",
"primary": true
},
{
"code": "2080P0006X",
"taxonomy_group": "",
"desc": "Pediatrics, Developmental - Behavioral Pediatrics",
"state": "NJ",
"license": "MA049891",
"primary": false
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Mendham, NJ
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 11, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.