MR. JOHN EDWIN ZILK BSN, RN, CNOR, RNFA
NPI 1982559548
Registered Nurse - Registered Nurse First Assistant in Roanoke, VA

NPI Status: Active since February 27, 2026

Contact Information

1906 BELLEVIEW AVE SE
ROANOKE, VA
ZIP 24014
Phone: (540) 981-7000

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  • Individual
  • Male
  • Registered Nurse
  • Registered Nurse First Assistant

About JOHN ZILK

This page provides the complete NPI Profile along with additional information for John Zilk, a provider established in Roanoke, Virginia with a medical specialization in Registered Nurse, focusing in registered nurse first assistant . The healthcare provider is registered in the NPI registry with number 1982559548 assigned on February 2026. The practitioner's primary taxonomy code is 163WR0006X with license number 0001319492 (VA). The provider is registered as an individual and his NPI record was last updated February 2026.

NPI
1982559548
Provider Name
MR. JOHN EDWIN ZILK BSN, RN, CNOR, RNFA
Gender
Male
Entity Type
Individual
Location Address
1906 BELLEVIEW AVE SE ROANOKE, VA 24014
Location Phone
(540) 981-7000
Mailing Address
3357 KELLY LN ROANOKE, VA 24018
Mailing Phone
(757) 404-8948
Is Sole Proprietor?
No
Enumeration Date
02-27-2026
Last Update Date
02-27-2026
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A registered nurse (RN) like John Zilk 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.

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 Registered Nurse First Assistant

Taxonomy Code
163WR0006X
Type
Nursing Service Providers
License No.
0001319492
License State
VA
Taxonomy Description
A perioperative registered nurse who works in collaboration with the surgeon and other health care team members to achieve optimal outcomes. The RNFA has acquired the necessary knowledge, judgment, and skills specific to the expanded role of RNFA clinical practice. Intraoperatively, the RNFA assists the surgeon.

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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 1982559548, 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 72. The final step is to find the difference between that total and the next multiple of ten (80 - 72 = 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.

Pos 1
1
Doubled → 2
Pos 2
9
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
2
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
5
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
5
Unchanged
Pos 9
4
Doubled → 8
Check
8
Target digit
Regular digit Doubled digit Check digit

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.

1 → 2 8 → 16 → 7 5 → 10 → 1 9 → 18 → 9 4 → 8

Step 2: Add all digits plus the NPI constant

Add the transformed values, the unchanged digits, and the constant 24.

2 + 9 + 1 + 6 + 2 + 1 + 0 + 5 + 1 + 8 + 5 + 8 + 24 = 72

Step 3: Find the amount needed to reach the next multiple of 10

The next multiple of ten after 72 is 80. The difference is the calculated check digit.

80 - 72 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1982559548.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Pathology (Anatomic Pathology & Clinical Pathology)
1906 BELLEVIEW AVE SE
ROANOKE, VA 24014
Physician Assistant (Medical)
1906 BELLEVIEW AVE SE
ROANOKE, VA 24014
Nurse Anesthetist, Certified Registered
1906 BELLEVIEW AVE SE
ROANOKE, VA 24014
Radiology (Diagnostic Radiology)
1906 BELLEVIEW AVE SE
ROANOKE, VA 24014
Internal Medicine (Pulmonary Disease)
1906 BELLEVIEW AVE SE
ROANOKE, VA 24014
Internal Medicine
1906 BELLEVIEW AVE SE
ROANOKE, VA 24014
Internal Medicine
1906 BELLEVIEW AVE SE
ROANOKE, VA 24014
Internal Medicine
1906 BELLEVIEW AVE SE
ROANOKE, VA 24014
Surgery
1906 BELLEVIEW AVE SE
ROANOKE, VA 24014
Internal Medicine (Critical Care Medicine)
1906 BELLEVIEW AVE SE
ROANOKE, VA 24014
Physician Assistant
1906 BELLEVIEW AVE SE
ROANOKE, VA 24014
Internal Medicine
1906 BELLEVIEW AVE SE
ROANOKE, VA 24014
Surgery
1906 BELLEVIEW AVE SE
ROANOKE, VA 24014
Emergency Medicine
1906 BELLEVIEW AVE SE, CRMH DEPARTMENT OF EMERGENCY MEDICINE
ROANOKE, VA 24014
Emergency Medicine
1906 BELLEVIEW AVE SE
ROANOKE, VA 24014
Emergency Medicine
1906 BELLEVIEW AVE SE
ROANOKE, VA 24014
Nurse Anesthetist, Certified Registered
1906 BELLEVIEW AVE SE
ROANOKE, VA 24014
Nurse Practitioner (Neonatal)
1906 BELLEVIEW AVE SE
ROANOKE, VA 24014
Pathology (Anatomic Pathology & Clinical Pathology)
1906 BELLEVIEW AVE SE
ROANOKE, VA 24014
Nurse Anesthetist, Certified Registered
1906 BELLEVIEW AVE SE
ROANOKE, VA 24014

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1982559548, enumerated as an "individual" on February 27, 2026.

The provider is located at 1906 BELLEVIEW AVE SE ROANOKE, VA 24014 and the phone number is (540) 981-7000.

Registered Nurse with taxonomy code 163WR0006X and a focus in Registered Nurse First Assistant.