Active NPI
David Louis Nahum, ED.D.
- Psychologist
- Castle Rock, CO
National Provider Identifier
1114033131
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Psychologist
- License
- 2193
- Practice address
- 599 Topeka Way Ste 300
Castle Rock, CO 80109-3132 - Phone
- (303) 667-9388
- Fax
- (303) 814-1583
- NPI assigned
- Aug 22, 2006
- Sex
- Male
- Sole proprietor
- Yes
NPPES NPI Registry
Registry information is reported by the provider to CMS and is not verified. About this source
Specialties & licenses 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Cognitive & Behavioral Psychologist | 103TB0200X | 2193 | CO | |
| Clinical Child & Adolescent Psychologist | 103TC2200X | 2193 | CO | |
| Psychologist | 103T00000X | 2193 | CO | Primary |
Addresses
Primary practice location
599 Topeka Way Ste 300
Castle Rock, CO 80109-3132
Mailing address
599 Topeka Way Ste 300
Castle Rock, CO 80109-3132
Phone (303) 667-9388
Other identifiers 2
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 248039 | Other | CO | VALUE OPTIONS |
| 248039 | Other | CO | GREAT-WEST |
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)
- Enrolled
State licenses
| License | State | Type | Specialty |
|---|---|---|---|
| 2193 | CO | MD | Cognitive & Behavioral Psychologist |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1156204800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757548800000",
"number": "1114033131",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "599 TOPEKA WAY STE 300",
"city": "CASTLE ROCK",
"state": "CO",
"postal_code": "801093132",
"telephone_number": "303-667-9388",
"fax_number": "303-814-1583"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "599 TOPEKA WAY STE 300",
"city": "CASTLE ROCK",
"state": "CO",
"postal_code": "801093132",
"telephone_number": "303-667-9388",
"fax_number": "303-814-1583"
}
],
"practiceLocations": [],
"basic": {
"last_name": "NAHUM",
"first_name": "DAVID",
"middle_name": "LOUIS",
"name_prefix": "Dr.",
"credential": "ED.D.",
"sole_proprietor": "YES",
"sex": "M",
"enumeration_date": "2006-08-22",
"last_updated": "2025-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "103TB0200X",
"taxonomy_group": "",
"desc": "Psychologist, Cognitive & Behavioral",
"state": "CO",
"license": "2193",
"primary": false
},
{
"code": "103TC2200X",
"taxonomy_group": "",
"desc": "Psychologist, Clinical Child & Adolescent",
"state": "CO",
"license": "2193",
"primary": false
},
{
"code": "103T00000X",
"taxonomy_group": "",
"desc": "Psychologist",
"state": "CO",
"license": "2193",
"primary": true
}
],
"identifiers": [
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "VALUE OPTIONS",
"identifier": "248039",
"state": "CO"
},
{
"code": "01",
"desc": "Other (non-Medicare)",
"issuer": "GREAT-WEST",
"identifier": "248039",
"state": "CO"
}
],
"endpoints": [],
"other_names": []
}Other providers in Castle Rock, CO
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.