Active NPI
William Harold Arp-Howard
- Mental Health Counselor
- Corvallis, OR
National Provider Identifier
1326320425
On this page
Key facts
NPPES NPI Registry- Primary specialty
- Mental Health Counselor
- Practice address
- 530 NW 27TH St
Corvallis, OR 97330-5223 - Phone
- (541) 766-6835
- Fax
- (541) 766-6186
- NPI assigned
- Sep 14, 2011
- 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 3
| Specialty (taxonomy) | Code | License | State | Primary |
|---|---|---|---|---|
| Case Manager/Care Coordinator | 171M00000X | |||
| Addiction (Substance Use Disorder) Counselor | 101YA0400X | |||
| Mental Health Counselor | 101YM0800X | Primary |
Addresses
Primary practice location
530 NW 27TH St
Corvallis, OR 97330-5223
Mailing address
PO Box 579
Corvallis, OR 97339-0579
Phone (541) 766-6835
Other practice location 1
10313 SW 69th Ave
Tigard, OR 97223-9103
Phone (541) 948-5058
Other names 1
- Mr. William Harold Howard
Medicare participation
Medicare enrollment files- Medicare fee-for-service enrollment
- Enrolled in OR
- Eligible to order & refer
- Part B services: Yes
- Medical equipment: Yes
- Home health: No
- Power mobility devices: No
- Hospice: No
Enrollment records 1
| Enrollment ID | State | Provider type | PAC ID | Details |
|---|---|---|---|---|
| I20250822000874 | OR | Order and Referring Only - Mental Health Counselor | 3678073871 |
National Provider Directory
National Provider Directory- Medicare enrollment (NPD)
- Enrolled
NPI Registry JSON
The complete NPPES record for this NPI in the NPI Registry API format.
{
"created_epoch": "1315958400000",
"enumeration_type": "NPI-1",
"last_updated_epoch": "1777420800000",
"number": "1326320425",
"addresses": [
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "MAILING",
"address_type": "DOM",
"address_1": "PO BOX 579",
"city": "CORVALLIS",
"state": "OR",
"postal_code": "973390579",
"telephone_number": "541-766-6835",
"fax_number": "541-766-6186"
},
{
"country_code": "US",
"country_name": "United States",
"address_purpose": "LOCATION",
"address_type": "DOM",
"address_1": "530 NW 27TH ST",
"city": "CORVALLIS",
"state": "OR",
"postal_code": "973305223",
"telephone_number": "541-766-6835",
"fax_number": "541-766-6186"
}
],
"practiceLocations": [
{
"address_1": "10313 SW 69th Ave",
"address_purpose": "LOCATION",
"city": "Tigard",
"state": "OR",
"postal_code": "972239103",
"country_code": "US",
"telephone_number": "541-948-5058",
"country_name": "United States",
"address_type": "DOM"
}
],
"basic": {
"last_name": "ARP-HOWARD",
"first_name": "WILLIAM",
"middle_name": "HAROLD",
"name_prefix": "Mr.",
"sole_proprietor": "NO",
"sex": "M",
"enumeration_date": "2011-09-14",
"last_updated": "2026-04-29",
"certification_date": "2026-04-29",
"status": "A"
},
"taxonomies": [
{
"code": "171M00000X",
"taxonomy_group": "",
"desc": "Case Manager/Care Coordinator",
"state": null,
"license": null,
"primary": false
},
{
"code": "101YA0400X",
"taxonomy_group": "",
"desc": "Counselor, Addiction (Substance Use Disorder)",
"state": null,
"license": null,
"primary": false
},
{
"code": "101YM0800X",
"taxonomy_group": "",
"desc": "Counselor, Mental Health",
"state": null,
"license": null,
"primary": true
}
],
"identifiers": [],
"endpoints": [],
"other_names": [
{
"first_name": "WILLIAM",
"last_name": "HOWARD",
"middle_name": "HAROLD",
"prefix": "MR.",
"code": "1",
"type": "Former Name"
}
]
}Other providers in Corvallis, OR
Sources for this page
- NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Apr 29, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
- Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
- National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.