DR. WILLIAM CARL MARSON DC
NPI 1922149574
Chiropractor - Orthopedic in Lynnwood, WA
NPI Status: Active since February 08, 2007
Contact Information
4300 198TH ST SW STE 300
LYNNWOOD, WA
ZIP 98036
Phone: (425) 361-1122
Fax: (206) 324-1178
- Individual
- Male
- Chiropractor
- Orthopedic
- Accepts Insurance
About WILLIAM MARSON
This page provides the complete NPI Profile along with additional information for William Marson, a provider established in Lynnwood, Washington with a medical specialization in Chiropractor, focusing in orthopedic . The healthcare provider is registered in the NPI registry with number 1922149574 assigned on February 2007. The practitioner's primary taxonomy code is 111NX0800X with license number CH00003099 (WA). The provider is registered as an individual and his NPI record was last updated March 2026.
- NPI
- 1922149574
- Provider Name
- DR. WILLIAM CARL MARSON DC
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 4300 198TH ST SW STE 300 LYNNWOOD, WA 98036
- Location Phone
- (425) 361-1122
- Location Fax
- (206) 324-1178
- Mailing Address
- 4300 198TH ST SW STE 300 LYNNWOOD, WA 98036
- Mailing Phone
- (425) 361-1122
- Mailing Fax
- (206) 324-1178
- Is Sole Proprietor?
- No
- Enumeration Date
- 02-08-2007
- Last Update Date
- 03-30-2026
- Code Navigator
A chiropractor like William Marson helps patients with problems of the neuromusculoskeletal system, which includes nerves, bones, muscles, ligaments, and tendons. Chiropractors use spinal adjustments and manipulation, as well as other clinical interventions, to manage health issues such as back and neck pain. Some chiropractors apply procedures like massage therapy, rehabilitative exercise, ultrasound and spinal adjustments and manipulation. A chiropractor focuses on the patients overall health and might refer patients to other healthcare professionals if necessary.
Location Map
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
Chiropractor Orthopedic
- Taxonomy Code
- 111NX0800X
- Type
- Chiropractic Providers
- License No.
- CH00003099
- License State
- WA
- Taxonomy Description
- Chiropractic Orthopedics/Neuromusculoskeletal Medicine is defined as that branch of chiropractic medicine that includes the continued acquisition of knowledge relative to both normal functions and diseases of the human body as they relate to the bones, joints, capsules, discs, muscles, ligaments, tendons, their complete neurological and vascular components, referred organ systems and contiguous tissues. This also includes the development and perfection of skills relative to health maintenance when such exists and when not, the investigations, historical review, physical detection, correlative diagnosis development and complete management of any disorder within the bounds defined herein. Also necessary is the delivery of the combined knowledge and skill on a primary basis to patients who both need and desire this service to the eventual outcome of remissions, whenever resolution is not readily achievable. In addition the certified chiropractic orthopedist/neuromusculoskeletal medicine specialist provides consultation services at the request of other qualified doctors seeking assistance in the care of their patients. The chiropractic orthopedist/neuromusculoskeletal medicine specialist may also engage in the teaching and or research of subjects and materials relevant to pursuing the quest for knowledge in the ever changing field of the orthopedic specialty.
Insurance Plans Accepted
According to publicly available information the provider might be accepting the following health plans from these health insurance companies:
- 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
*Please verify directly with this provider to make sure your insurance plan is currently accepted.
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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 1922149574, we treat the final digit (4) 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 66. The final step is to find the difference between that total and the next multiple of ten (70 - 66 = 4).
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 66 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 1 provider is registered at the same or a nearby location.
LYNNWOOD, WA 98036
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1922149574, enumerated as an "individual" on February 08, 2007.
The provider is located at 4300 198TH ST SW STE 300 LYNNWOOD, WA 98036 and the phone number is (425) 361-1122.
Chiropractor with taxonomy code 111NX0800X and a focus in Orthopedic.
The provider might be accepting Accepts: PacificSource Health Plans. Please consult your insurance carrier or call the provider to verify.
