MARIO JOHNSON JR. RN
NPI 1285587808
Registered Nurse - Critical Care Medicine in Atlanta, GA
NPI Status: Active since February 16, 2026
Contact Information
1364 CLIFTON RD NE
ATLANTA, GA
ZIP 30322
Phone: (404) 712-2000
- Individual
- Male
- Registered Nurse
- Critical Care Medicine
About MARIO JOHNSON
This page provides the complete NPI Profile along with additional information for Mario Johnson, a provider established in Atlanta, Georgia with a medical specialization in Registered Nurse, focusing in critical care medicine . The healthcare provider is registered in the NPI registry with number 1285587808 assigned on February 2026. The practitioner's primary taxonomy code is 163WC0200X with license number RN292361 (GA). The provider is registered as an individual and his NPI record was last updated February 2026. Mario Johnson operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization.
- NPI
- 1285587808
- Provider Name
- MARIO JOHNSON JR. RN
- Gender
- Male
- Entity Type
- Individual
- Location Address
- 1364 CLIFTON RD NE ATLANTA, GA 30322
- Location Phone
- (404) 712-2000
- Mailing Address
- 1678 OAK GROVE RD ATHENS, GA 30607
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 02-16-2026
- Last Update Date
- 02-16-2026
- Code Navigator
A registered nurse (RN) like Mario Johnson coordinates and provides patient care and educates patients about various health conditions. Registered nurses give advice and emotional support to patients and their families. The typical duties of a registered nurse include: assessing patient conditions, record medical histories and symptoms, observe patients and record the observations, administer medicines and treatments, consult and collaborate with doctors, operate and monitor medical equipment, teach patients and families how to manage injuries or illnesses, etc.
Registered nurses typically work as part of a team with physicians and other healthcare professionals. In some medical teams registered nurses supervise nursing assistants, licensed practical nurses, and home health aides.
Critical care nurses - this registered nurse specializes in providing care at hospital intensive-care units, tending to patients with severe, acute illnesses and injuries that require meticulous monitoring and intervention.
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
Registered Nurse Critical Care Medicine
- Taxonomy Code
- 163WC0200X
- Type
- Nursing Service Providers
- License No.
- RN292361
- License State
- GA
Group Taxonomy 193200000X MULTI-SPECIALTY GROUP
This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.
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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 1285587808, 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 20 providers are registered at the same or a nearby location.
ATLANTA, GA 30322
ATLANTA, GA 30322
ATLANTA, GA 30322
ATLANTA, GA 30322
ATLANTA, GA 30322
ATLANTA, GA 30322
ATLANTA, GA 30322
ATLANTA, GA 30322
ATLANTA, GA 30322
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1285587808, enumerated as an "individual" on February 16, 2026.
The provider is located at 1364 CLIFTON RD NE ATLANTA, GA 30322 and the phone number is (404) 712-2000.
Registered Nurse with taxonomy code 163WC0200X and a focus in Critical Care Medicine.
