NORTHSTAR ASSOCIATES, PLLC
NPI 1912921586
Clinic/Center - Sleep Disorder Diagnostic in Bellingham, WA

NPI Status: Active since July 27, 2006

Contact Information

1345 KING ST
BELLINGHAM, WA
ZIP 98229
Phone: (360) 676-1696
Fax: (360) 676-6636

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  • Organization
  • Clinic/Center
  • Sleep Disorder Diagnostic
  • Accepts Insurance

About NORTHSTAR ASSOCIATES, PLLC

This page provides the complete NPI Profile along with additional information for Northstar Associates, Pllc, a provider established in Bellingham, Washington operating as a Clinic/center, focusing in sleep disorder diagnostic . The healthcare provider is registered in the NPI registry with number 1912921586 assigned on July 2006. The practitioner's primary taxonomy code is 261QS1200X with license number 602 099 399 (WA). The provider is registered as an organization and their NPI record was last updated one year ago. The provider's . The authorized official of this NPI record is Christopher Paul Mathews (President)

NPI
1912921586
Provider Legal Name
NORTHSTAR ASSOCIATES, PLLC
Other Organization Name
Other Name Type
(6)
Entity Type
Organization
Location Address
1345 KING ST BELLINGHAM, WA 98229
Location Phone
(360) 676-1696
Location Fax
(360) 676-6636
Mailing Address
1345 KING ST BELLINGHAM, WA 98229
Mailing Phone
(360) 676-1696
Mailing Fax
(360) 676-6636
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
07-27-2006
Last Update Date
12-05-2025
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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

Clinic/Center Sleep Disorder Diagnostic

Taxonomy Code
261QS1200X
Type
Ambulatory Health Care Facilities
License No.
602 099 399
License State
WA

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)
12084S0012XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Sleep Medicine

 
2332B00000XSuppliers

Durable Medical Equipment & Medical Supplies

 

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

  • Premera Blue Cross Alaska One Gold - PPO
  • Premera Blue Cross Preferred Bronze 5800 HSA - PPO
  • Premera Blue Cross Preferred Bronze 6350 - PPO
  • Premera Blue Cross Preferred Gold 1500 - PPO
  • Premera Blue Cross Preferred Silver 4500 - PPO
  • Premera Blue Cross Standard Bronze II - PPO
  • Premera Blue Cross Standard Gold - PPO
  • Premera Blue Cross Standard Silver - PPO
  • Premera Blue Cross Family Dental - PPO
  • Premera Blue Cross Pediatric Dental - PPO

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

CHRISTOPHER PAUL MATHEWS

Authorized Official Title
PRESIDENT
Authorized Official Phone
(360) 676-1696

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
122495122495OTHER (01)WAPREMERA
539108001OTHER (01)WAGROUP HEALTH
4824NOOTHER (01)WAREGENCE

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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 1912921586, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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.

Pos 1
1
Doubled → 2
Pos 2
9
Unchanged
Pos 3
1
Doubled → 2
Pos 4
2
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
2
Unchanged
Pos 7
1
Doubled → 2
Pos 8
5
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
6
Target digit
Regular digit Doubled digit Check digit

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.

1 → 2 1 → 2 9 → 18 → 9 1 → 2 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 9 + 2 + 2 + 1 + 8 + 2 + 2 + 5 + 1 + 6 + 24 = 64

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1912921586.

Other Providers at the Same Location


The following 8 providers are registered at the same or a nearby location.

Psychiatry & Neurology (Neurology)
1345 KING ST
BELLINGHAM, WA 98229
Physician Assistant
1345 KING ST
BELLINGHAM, WA 98229
Respiratory Therapist, Certified
1345 KING ST
BELLINGHAM, WA 98229
Nurse Practitioner
1345 KING ST
BELLINGHAM, WA 98229
Physician Assistant
1345 KING ST
BELLINGHAM, WA 98229
Dietitian, Registered
1345 KING ST
BELLINGHAM, WA 98229
Clinic/Center (Sleep Disorder Diagnostic)
1345 KING ST
BELLINGHAM, WA 98229
Dietitian, Registered
1345 KING ST
BELLINGHAM, WA 98229

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1912921586, enumerated as an "organization" on July 27, 2006.

The provider is located at 1345 KING ST BELLINGHAM, WA 98229 and the phone number is (360) 676-1696.

Clinic/Center with taxonomy code 261QS1200X and a focus in Sleep Disorder Diagnostic.

The provider might be accepting Accepts: Premera Blue Cross Blue Shield of Alaska, Medicare. Please consult your insurance carrier or call the provider to verify.