Active NPI
Leonard Darren Ross Jr.
- Behavior Analyst
- Gaithersburg, MD
National Provider Identifier
1124530027
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Behavior Analyst
- License
- LBA2752
- Practice address
- 9250 Gaither Rd
Gaithersburg, MD 20877-1420 - Phone
- (843) 789-9956
- NPI assigned
- Oct 31, 2017
- Sex
- Male
- 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 |
|---|---|---|---|---|
| Behavior Analyst | 103K00000X | LBA2752 | MD | Primary |
Addresses
Primary practice location
9250 Gaither Rd
Gaithersburg, MD 20877-1420
Mailing address
9250 Gaither Rd
Gaithersburg, MD 20877-1420
Phone (843) 789-9956
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
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1509408000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1787788800000",
"number": "1124530027",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "9250 GAITHER RD",
"city": "GAITHERSBURG",
"state": "MD",
"postal_code": "208771420",
"telephone_number": "843-789-9956"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "9250 GAITHER RD",
"city": "GAITHERSBURG",
"state": "MD",
"postal_code": "208771420",
"telephone_number": "843-789-9956"
}
],
"practiceLocations": [],
"basic": {
"last_name": "ROSS",
"first_name": "LEONARD",
"middle_name": "DARREN",
"name_suffix": "Jr.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2017-10-31",
"last_updated": "2026-08-27",
"certification_date": "2026-08-27",
"status": "A"
},
"taxonomies": [
{
"code": "103K00000X",
"taxonomy_group": "",
"desc": "Behavior Analyst",
"state": "MD",
"license": "LBA2752",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Gaithersburg, MD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 27, 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.