ARIEL MARSH
NPI 1558224865
Speech-Language Pathologist in Portland, OR
NPI Status: Active since December 03, 2025
Contact Information
3727 NE 12TH AVE
PORTLAND, OR
ZIP 97212
Phone: (971) 533-2617
- Individual
- Female
- Speech-Language Pathologist
About ARIEL MARSH
This page provides the complete NPI Profile along with additional information for Ariel Marsh, a provider established in Portland, Oregon with a medical specialization in Speech-language Pathologist. The healthcare provider is registered in the NPI registry with number 1558224865 assigned on December 2025. The practitioner's primary taxonomy code is 235Z00000X with license number 17685 (OR). The provider is registered as an individual and her NPI record was last updated one year ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization.
- NPI
- 1558224865
- Provider Name
- ARIEL MARSH
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 3727 NE 12TH AVE PORTLAND, OR 97212
- Location Phone
- (971) 533-2617
- Mailing Address
- 3727 NE 12TH AVE PORTLAND, OR 97212
- Mailing Phone
- (971) 533-2617
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 12-03-2025
- Last Update Date
- 12-03-2025
- Code Navigator
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
Speech-Language Pathologist
- Taxonomy Code
- 235Z00000X
- Type
- Speech, Language and Hearing Service Providers
- License No.
- 17685
- License State
- OR
- Taxonomy Description
- The speech-language pathologist is the professional who engages in clinical services, prevention, advocacy, education, administration, and research in the areas of communication and swallowing across the life span from infancy through geriatrics. Speech-language pathologists address typical and atypical impairments and disorders related to communication and swallowing in the areas of speech sound production, resonance, voice, fluency, language (comprehension and expression), cognition, and feeding and swallowing.
Group Taxonomy 193400000X SINGLE SPECIALTY GROUP
This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.
Reviews for ARIEL MARSH
There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.
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 1558224865, 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 65. The final step is to find the difference between that total and the next multiple of ten (70 - 65 = 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 65 is 70. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1558224865, enumerated as an "individual" on December 03, 2025.
The provider is located at 3727 NE 12TH AVE PORTLAND, OR 97212 and the phone number is (971) 533-2617.
Speech-Language Pathologist with taxonomy code 235Z00000X.
