RYAN RICHARD HOLT I
NPI 1609392158
Counselor - Professional in Portland, ME
NPI Status: Active since August 16, 2017
Contact Information
901 WASHINGTON AVE
PORTLAND, ME
ZIP 04103
Phone: (207) 233-8178
- Individual
- Male
- Counselor
- Professional
About RYAN HOLT
This page provides the complete NPI Profile along with additional information for Ryan Holt, a provider established in Portland, Maine with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1609392158 assigned on August 2017. The practitioner's primary taxonomy code is 101YP2500X with license number XL8318 (ME). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1609392158
- Provider Name
- RYAN RICHARD HOLT I
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 901 WASHINGTON AVE PORTLAND, ME 04103
- Location Phone
- (207) 233-8178
- Mailing Address
- 24 HOMESTEAD LN CUMBERLAND, ME 04021
- Mailing Phone
- (207) 233-8178
- Is Sole Proprietor?
- No
- Enumeration Date
- 08-16-2017
- Last Update Date
- 10-03-2025
- 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
Counselor Professional
- Taxonomy Code
- 101YP2500X
- Type
- Behavioral Health & Social Service Providers
- License No.
- XL8318
- License State
- ME
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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 1609392158, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).
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 62 is 70. The difference is the calculated check digit.
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Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1609392158, enumerated as an "individual" on August 16, 2017.
The provider is located at 901 WASHINGTON AVE PORTLAND, ME 04103 and the phone number is (207) 233-8178.
Counselor with taxonomy code 101YP2500X and a focus in Professional.
