MADISON RENEE GREER NP
NPI 1821976127
Nurse Practitioner in Memphis, TN
NPI Status: Active since August 25, 2025
Contact Information
6625 LENOX PARK DR STE 101
MEMPHIS, TN
ZIP 38115
Phone: (901) 683-0024
Fax: (901) 683-0086
- Individual
- Female
- Nurse Practitioner
About MADISON GREER
This page provides the complete NPI Profile along with additional information for Madison Greer, a provider established in Memphis, Tennessee with a medical specialization in Nurse Practitioner. The healthcare provider is registered in the NPI registry with number 1821976127 assigned on August 2025. The practitioner's primary taxonomy code is 363L00000X with license number 38651 (TN). The provider is registered as an individual and her NPI record was last updated April 2026.
- NPI
- 1821976127
- Provider Name
- MADISON RENEE GREER NP
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 6625 LENOX PARK DR STE 101 MEMPHIS, TN 38115
- Location Phone
- (901) 683-0024
- Location Fax
- (901) 683-0086
- Mailing Address
- 6625 LENOX PARK DR STE 202 MEMPHIS, TN 38115
- Mailing Phone
- (901) 683-0024
- Mailing Fax
- (901) 683-0086
- Is Sole Proprietor?
- No
- Enumeration Date
- 08-25-2025
- Last Update Date
- 04-21-2026
- Code Navigator
A nurse practitioner (NP) like Madison Greer 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
Secondary Locations
- 6063 Mount Moriah Road Ext Ste 4
Memphis, TN 38115
(901) 683-0024 - 1212 Vollintine Ave Ste 101
Memphis, TN 38107
(901) 683-0024
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
- Taxonomy Code
- 363L00000X
- Type
- Physician Assistants & Advanced Practice Nursing Providers
- License No.
- 38651
- License State
- TN
- Taxonomy Description
- (1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.
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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 1821976127, 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 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 63 is 70. The difference is the calculated check digit.
Other Providers at the Same Location
The following 8 providers are registered at the same or a nearby location.
MEMPHIS, TN 38115
MEMPHIS, TN 38115
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1821976127, enumerated as an "individual" on August 25, 2025.
The provider is located at 6625 LENOX PARK DR STE 101 MEMPHIS, TN 38115 and the phone number is (901) 683-0024.
Nurse Practitioner with taxonomy code 363L00000X.
