Active NPI
William Leo Cook, LCPC
- Professional Counselor
- Owings Mills, MD
National Provider Identifier
1780677302
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Professional Counselor
- License
- LC1656
- Practice address
- 9199 Reisterstown Rd
Suite 105-B
Owings Mills, MD 21117-4520 - Phone
- (410) 356-8260
- Fax
- (410) 356-8299
- NPI assigned
- Aug 30, 2005
- 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 |
|---|---|---|---|---|
| Professional Counselor | 101YP2500X | LC1656 | MD | Primary |
Addresses
Primary practice location
9199 Reisterstown Rd
Suite 105-B
Owings Mills, MD 21117-4520
Mailing address
6605 Wexford LN
Eldersburg, MD 21784-6261
Phone (410) 596-6514
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 |
|---|---|---|---|
| LC1656 | MD | MD | Professional Counselor |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1125360000000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1783900800000",
"number": "1780677302",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "6605 WEXFORD LN",
"city": "ELDERSBURG",
"state": "MD",
"postal_code": "217846261",
"telephone_number": "410-596-6514"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "9199 REISTERSTOWN RD",
"address_2": "SUITE 105-B",
"city": "OWINGS MILLS",
"state": "MD",
"postal_code": "211174520",
"telephone_number": "410-356-8260",
"fax_number": "410-356-8299"
}
],
"practiceLocations": [],
"basic": {
"last_name": "COOK",
"first_name": "WILLIAM",
"middle_name": "LEO",
"name_prefix": "Mr.",
"credential": "LCPC",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2005-08-30",
"last_updated": "2026-07-13",
"status": "A"
},
"taxonomies": [
{
"code": "101YP2500X",
"taxonomy_group": "",
"desc": "Counselor, Professional",
"state": "MD",
"license": "LC1656",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Owings Mills, MD
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 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.