DR. RYAN NICHOLAS MARRS DO
NPI 1992598759
Military Health Care Provider in Fairfield, CA
NPI Status: Active since May 26, 2025
Contact Information
101 BODIN CIR
FAIRFIELD, CA
ZIP 94535
Phone: (707) 423-3000
- Individual
- Male
- Military Health Care Provider
About RYAN MARRS
This page provides the complete NPI Profile along with additional information for Ryan Marrs, a provider established in Fairfield, California with a medical specialization in Military Health Care Provider. The healthcare provider is registered in the NPI registry with number 1992598759 assigned on May 2025. The practitioner's primary taxonomy code is 171000000X. The provider is registered as an individual and his NPI record was last updated February 2026.
- NPI
- 1992598759
- Provider Name
- DR. RYAN NICHOLAS MARRS DO
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 101 BODIN CIR FAIRFIELD, CA 94535
- Location Phone
- (707) 423-3000
- Mailing Address
- 1120 MCCOY CREEK WAY SUISUN CITY, CA 94585
- Mailing Phone
- (860) 276-4953
- Is Sole Proprietor?
- No
- Enumeration Date
- 05-26-2025
- Last Update Date
- 02-26-2026
- 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
Military Health Care Provider
- Taxonomy Code
- 171000000X
- Type
- Other Service Providers
- Taxonomy Description
- Active duty military health care providers not otherwise classified who need to be separately identified for operational, clinical, or administrative processes.
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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 1992598759, we treat the final digit (9) 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).
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 71 is 80. 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.
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TRAVIS AFB, CA 94535
TRAVIS AFB, CA 94535
TRAVIS AFB, CA 94535
TRAVIS AFB, CA 94535
TRAVIS AFB, CA 94535
TRAVIS AFB, CA 94535
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1992598759, enumerated as an "individual" on May 26, 2025.
The provider is located at 101 BODIN CIR FAIRFIELD, CA 94535 and the phone number is (707) 423-3000.
Military Health Care Provider with taxonomy code 171000000X.
