MR. JOHN L DAVIS MS, ATC
NPI 1689647208
Specialist/Technologist in Montclair, NJ
- Individual
- Male
- Specialist/Technologist
About JOHN DAVIS
This page provides the complete NPI Profile along with additional information for John Davis, a provider established in Montclair, New Jersey with a medical specialization in Specialist/technologist. The healthcare provider is registered in the NPI registry with number 1689647208 assigned on February 2006. The practitioner's primary taxonomy code is 225500000X with license number 25MT00010700 (NJ). The provider is registered as an individual and his NPI record was last updated July 2026.
- NPI
- 1689647208
- Provider Name
- MR. JOHN L DAVIS MS, ATC
- Gender
- Male
- Entity Type
- Individual
- Location Address
- MONTCLAIR STATE UNIVERSITY 1 NORMAL AVE. MONTCLAIR, NJ 07043
- Location Phone
- (973) 655-5250
- Location Fax
- (973) 655-5436
- Mailing Address
- 22 HILTON ST PEQUANNOCK, NJ 07440
- Mailing Phone
- (973) 633-8010
- Is Sole Proprietor?
- No
- Enumeration Date
- 02-13-2006
- Last Update Date
- 07-13-2026
- 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
Specialist/Technologist
- Taxonomy Code
- 225500000X
- Type
- Respiratory, Developmental, Rehabilitative and Restorative Service Providers
- License No.
- 25MT00010700
- License State
- NJ
- Taxonomy Description
- General classification identifying respiratory, developmental, rehabilitative or restorative services individuals who are trained on a specific piece of equipment or technical procedure.
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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 1689647208, 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.
Other Providers at the Same Location
The following 5 providers are registered at the same or a nearby location.
MONTCLAIR, NJ 07043
MONTCLAIR, NJ 07043
MONTCLAIR, NJ 07043
MONTCLAIR, NJ 07043
MONTCLAIR, NJ 07043
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1689647208, enumerated as an "individual" on February 13, 2006.
The provider is located at MONTCLAIR STATE UNIVERSITY 1 NORMAL AVE. MONTCLAIR, NJ 07043 and the phone number is (973) 655-5250.
Specialist/Technologist with taxonomy code 225500000X.
