DR. MARK CHARLES RUSSELL PH.D.
NPI 1518942770
Psychologist - Health Service in Fpo, AP
NPI Status: Active since December 09, 2005
Contact Information
USNH YOKOSUKA JAPAN
PSC 475 BOX 1
FPO, AP
ZIP 96350
Phone: (011) 814-6816
- Individual
- Male
- Psychologist
- Health Service
About MARK RUSSELL
This page provides the complete NPI Profile along with additional information for Mark Russell, a provider established in Fpo, with a medical specialization in Psychologist, focusing in health service . The healthcare provider is registered in the NPI registry with number 1518942770 assigned on December 2005. The practitioner's primary taxonomy code is 103TH0100X with license number PY00002607 (WA). The provider is registered as an individual and his NPI record was last updated one year ago.
- NPI
- 1518942770
- Provider Name
- DR. MARK CHARLES RUSSELL PH.D.
- Gender
- Male
- Entity Type
- Individual
- Location Address
- USNH YOKOSUKA JAPAN PSC 475 BOX 1 FPO, AP 96350
- Location Phone
- (011) 814-6816
- Mailing Address
- USNH YOKOSUKA JAPAN PSC 475 BOX 1 FPO, AP 96350
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 12-09-2005
- Last Update Date
- 09-11-2025
- 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
Psychologist Health Service
- Taxonomy Code
- 103TH0100X
- Type
- Behavioral Health & Social Service Providers
- License No.
- PY00002607
- License State
- WA
- Taxonomy Description
- A psychologist, certified/licensed at the independent practice level in his/her state, who is duly trained and experienced in the delivery of direct, preventative, assessment, and therapeutic intervention services to individuals whose growth, adjustment, or functioning is actually impaired or is demonstrably at high risk of impairment (1974).
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) |
|---|---|---|---|---|
| 1 | 103T00000X | Behavioral Health & Social Service Providers | Psychologist | PY00002607 (WA) |
| 2 | 103TA0400X | Behavioral Health & Social Service Providers | Psychologist | PY00002607 (WA) |
| 3 | 103TB0200X | Behavioral Health & Social Service Providers | Psychologist | PY00002607 (WA) |
| 4 | 103TC0700X | Behavioral Health & Social Service Providers | Psychologist | PY00002607 (WA) |
| 5 | 103TC2200X | Behavioral Health & Social Service Providers | Psychologist | PY00002607 (WA) |
| 6 | 103TM1800X | Behavioral Health & Social Service Providers | Psychologist | PY00002607 (WA) |
| 7 | 103TP2701X | Behavioral Health & Social Service Providers | Psychologist | PY00002607 (WA) |
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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 1518942770, we treat the final digit (0) 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 70. The final step is to find the difference between that total and the next multiple of ten (70 - 70 = 0).
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 70 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 5 providers are registered at the same or a nearby location.
FPO, AP 96350
FPO, AP 96350
FPO, AP 96350
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1518942770, enumerated as an "individual" on December 09, 2005.
The provider is located at USNH YOKOSUKA JAPAN PSC 475 BOX 1 FPO, AP 96350 and the phone number is (011) 814-6816.
Psychologist with taxonomy code 103TH0100X and a focus in Health Service.
