Active NPI
Mark Ketter Armstrong, MSW PLMHP
- Clinical Social Worker
- Omaha, NE
National Provider Identifier
1063554210
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Clinical Social Worker
- License
- LCS22682LCSW
- Practice address
- 11836 Arbor Street
Omaha, NE 68144-2937 - Phone
- (402) 898-8881
- Fax
- (402) 898-8886
- NPI assigned
- Feb 13, 2007
- 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 2
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Mental Health Counselor | 101YM0800X | 7834 | NE | |
| Clinical Social Worker | 1041C0700X | LCS22682LCSW | CA | Primary |
Addresses
Primary practice location
11836 Arbor Street
Omaha, NE 68144-2937
Mailing address
11836 Arbor Street
Omaha, NE 68144-2937
Phone (402) 898-8881
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 |
|---|---|---|---|
| LCS22682LCSW | CA | MD | Clinical Social Worker |
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1171324800000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1757548800000",
"number": "1063554210",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "11836 ARBOR STREET",
"city": "OMAHA",
"state": "NE",
"postal_code": "681442937",
"telephone_number": "402-898-8881",
"fax_number": "402-898-8886"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "11836 ARBOR STREET",
"city": "OMAHA",
"state": "NE",
"postal_code": "681442937",
"telephone_number": "402-898-8881",
"fax_number": "402-898-8886"
}
],
"practiceLocations": [],
"basic": {
"last_name": "ARMSTRONG",
"first_name": "MARK",
"middle_name": "KETTER",
"credential": "MSW PLMHP",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2007-02-13",
"last_updated": "2025-09-11",
"status": "A"
},
"taxonomies": [
{
"code": "101YM0800X",
"taxonomy_group": "",
"desc": "Counselor, Mental Health",
"state": "NE",
"license": "7834",
"primary": false
},
{
"code": "1041C0700X",
"taxonomy_group": "",
"desc": "Social Worker, Clinical",
"state": "CA",
"license": "LCS22682LCSW",
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": []
}Other providers in Omaha, NE
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.