MR. WILLIAM HAROLD ARP-HOWARD
NPI 1326320425
Counselor - Mental Health in Corvallis, OR
NPI Status: Active since September 14, 2011
Contact Information
530 NW 27TH ST
CORVALLIS, OR
ZIP 97330
Phone: (541) 766-6835
Fax: (541) 766-6186
- Individual
- Male
- Counselor
- Mental Health
- Accepts Insurance
- PECOS Enrolled
About WILLIAM ARP-HOWARD
This page provides the complete NPI Profile along with additional information for William Arp-howard, a provider established in Corvallis, Oregon with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1326320425 assigned on September 2011. The practitioner's primary taxonomy code is 101YM0800X. The provider is registered as an individual and his NPI record was last updated April 2026.
- NPI
- 1326320425
- Provider Name
- MR. WILLIAM HAROLD ARP-HOWARD
- Other Name
- MR. WILLIAM HAROLD HOWARD
- Other Name Type
- Former Name (1)
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 530 NW 27TH ST CORVALLIS, OR 97330
- Location Phone
- (541) 766-6835
- Location Fax
- (541) 766-6186
- Mailing Address
- PO BOX 579 CORVALLIS, OR 97339
- Mailing Phone
- (541) 766-6835
- Mailing Fax
- (541) 766-6186
- Is Sole Proprietor?
- No
- Enumeration Date
- 09-14-2011
- Last Update Date
- 04-29-2026
- Code Navigator
A mental health counselor like William Arp-howard provides treatment to individuals, families, couples, and groups for mental and emotional health issues and relationship problems. Mental health counselors treat clients with a variety of conditions, including anxiety, depression, grief, low self-esteem, stress, and suicidal impulses.
Location Map
Secondary Locations
- 10313 SW 69th Ave
Tigard, OR 97223
(541) 948-5058
Specialty - Primary Taxonomy
The NPI enumerator requires providers to submit at least one taxonomy code. A taxonomy code is a unique 10-character code that describes the healthcare provider type, classification, and the area of specialization. There could be only one primary taxonomy code per NPI record. For individual NPIs the license data is associated to the taxonomy code.
- Classification
Counselor Mental Health
- Taxonomy Code
- 101YM0800X
- Type
- Behavioral Health & Social Service Providers
Secondary Taxonomies
The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.
| No. | Taxonomy Code | Type | Classification / Specialization |
License No. (State) |
|---|---|---|---|---|
| 1 | 101YA0400X | Behavioral Health & Social Service Providers | Counselor | |
| 2 | 171M00000X | Other Service Providers | Case Manager/Care Coordinator |
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- BridgeSpan Standard Bronze Plan - EPO
- BridgeSpan Standard Gold Plan - EPO
- BridgeSpan Standard Silver Plan - EPO
- Core Bronze HSA 10600 - EPO
- Core Bronze HSA 7500 - EPO
- Core Bronze HSA 8300 - EPO
- Core Gold 1500 - EPO
- Core Gold 3000 - EPO
- Core Silver 3500 - EPO
- Core Silver 4500 - EPO
- Core Silver 5000 - EPO
- Core Silver 7500 - EPO
- Core Standard Expanded Bronze HSA - EPO
- Core Standard Gold - EPO
- Core Standard Silver - EPO
- PacificSource Oregon Standard Bronze HSA Plan Core - EPO
- PacificSource Oregon Standard Gold Plan Core - EPO
- PacificSource Oregon Standard Silver Plan Core - EPO
- Bronze 8000 Individual Connect - EPO
- Bronze Essential 9000 With 4 Copay No Deductible Office Visits Individual Connect - EPO
- Bronze HSA 7000 Individual Connect - EPO
- Gold 2300 Individual Connect - EPO
- Regence Standard Bronze Plan Individual Connect - EPO
- Regence Standard Gold Plan Individual Connect - EPO
- Regence Standard Silver Plan Individual Connect - EPO
- Silver 6500 Individual Connect - EPO
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
Medicare Participation & PECOS Enrollment Status
William Arp-howard is enrolled in PECOS and is eligible to order or refer health care services for Medicare patients. The provider is eligible to order or refer: Part B Clinical Laboratory and Imaging and Durable Medical Equipment (DME).
What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.
Is the provider registered in PECOS? Yes
Eligible to Order or Refer Part B Clinical Laboratory and Imaging: Yes
Eligible to Order or Refer Durable Medical Equipment (DMEPOS): Yes
Eligible to Order or Refer a Home Health Agency (HHA): No
Eligible to Order or Refer Power Mobility Devices: No
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NPI NPI Number Validation
How NPI Validation Works
The NPI validation process uses the ISO-standard Luhn algorithm, a mathematical "handshake", to ensure that a provider's 10-digit ID is authentic and free of common typing errors.
To verify the NPI 1326320425, we treat the final digit (5) as the Check Digit—the target answer we need to reach. The process begins by taking the first nine digits and adding a constant value of 24, which accounts for the "80840" prefix required for all U.S. health identifiers. We then double every other digit starting from the right and sum the individual digits of those results together. For this specific NPI, that total comes to 55. The final step is to find the difference between that total and the next multiple of ten (60 - 55 = 5).
Digit-by-digit view
Use the first nine digits for the calculation. Starting from the right, double every other digit. The last digit is the check digit and is not part of the calculation.
Step 1: Double every other digit from the right
Starting with the rightmost digit of the first nine digits, double every other value. If doubling creates a two-digit number, add those digits together.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 55 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
CORVALLIS, OR 97330
CORVALLIS, OR 97330
CORVALLIS, OR 97330
CORVALLIS, OR 97330
CORVALLIS, OR 97330
CORVALLIS, OR 97330
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1326320425, enumerated as an "individual" on September 14, 2011.
The provider is located at 530 NW 27TH ST CORVALLIS, OR 97330 and the phone number is (541) 766-6835.
Counselor with taxonomy code 101YM0800X and a focus in Mental Health.
The provider might be accepting Accepts: BridgeSpan Health Company, PacificSource Health. Please consult your insurance carrier or call the provider to verify.
