TIMOTHY RUSSELL LEONARD
NPI 1023714177
Nurse Practitioner - Family in Grand Rapids, MI
NPI Status: Active since January 31, 2023
Contact Information
200 JEFFERSON AVE SE
GRAND RAPIDS, MI
ZIP 49503
Phone: (616) 465-5910
Fax: (616) 465-5911
- Individual
- Male
- Nurse Practitioner
- Family
About TIMOTHY LEONARD
This page provides the complete NPI Profile along with additional information for Timothy Leonard, a provider established in Grand Rapids, Michigan with a medical specialization in Nurse Practitioner, focusing in family . The healthcare provider is registered in the NPI registry with number 1023714177 assigned on January 2023. The practitioner's primary taxonomy code is 363LF0000X with license number 4704363385 (MI). The provider is registered as an individual and his NPI record was last updated February 2026.
- NPI
- 1023714177
- Provider Name
- TIMOTHY RUSSELL LEONARD
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 200 JEFFERSON AVE SE GRAND RAPIDS, MI 49503
- Location Phone
- (616) 465-5910
- Location Fax
- (616) 465-5911
- Mailing Address
- 2373 64TH ST SW STE 2500 BYRON CENTER, MI 49315
- Mailing Phone
- (616) 465-5910
- Mailing Fax
- (616) 465-5911
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 01-31-2023
- Last Update Date
- 02-26-2026
- Code Navigator
A nurse practitioner (NP) like Timothy Leonard is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, etc.
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
Nurse Practitioner Family
- Taxonomy Code
- 363LF0000X
- Type
- Physician Assistants & Advanced Practice Nursing Providers
- License No.
- 4704363385
- License State
- MI
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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 1023714177, we treat the final digit (7) 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 7).
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 53 is 60. 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.
GRAND RAPIDS, MI 49503
GRAND RAPIDS, MI 49503
GRAND RAPIDS, MI 49503
GRAND RAPIDS, MI 49503
GRAND RAPIDS, MI 49503
GRAND RAPIDS, MI 49503
GRAND RAPIDS, MI 49503
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1023714177, enumerated as an "individual" on January 31, 2023.
The provider is located at 200 JEFFERSON AVE SE GRAND RAPIDS, MI 49503 and the phone number is (616) 465-5910.
Nurse Practitioner with taxonomy code 363LF0000X and a focus in Family.
