Newly Listed Provider — this NPI profile has been added to the NPI registry within the last 30 days.

BRYNN RADTKE
NPI 1285553271
Nurse Practitioner - Family in Appleton, WI

Active since July 13, 2026
1818 N MEADE ST, APPLETON, WI 54911(920) 731-4101 Get Directions

NPPES record added: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 19, 2026.

  • Individual
  • Nurse Practitioner
  • Family

About BRYNN RADTKE

This page provides the complete NPI Profile along with additional information for Brynn Radtke, a provider established in Appleton, Wisconsin operating as a Nurse Practitioner, focusing in family . The healthcare provider is registered in the NPI registry with number 1285553271 assigned on July 2026. The practitioner's primary taxonomy code is 363LF0000X with license number 18611-33 (WI). The provider is registered as an individual and their NPI record was last updated July 2026.

NPI
1285553271
Provider Name
BRYNN RADTKE
Gender
Entity Type
Individual
Location Address
1818 N MEADE ST APPLETON, WI 54911
Location Phone
(920) 731-4101
Mailing Address
820 1/2 W PROSPECT AVE APPLETON, WI 54914
Mailing Phone
(715) 610-7351
Is Sole Proprietor?
No
Enumeration Date
07-13-2026
Last Update Date
07-13-2026
Code Navigator

A nurse practitioner (NP) like Brynn Radtke 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.
18611-33
License State
WI

Reviews for BRYNN RADTKE

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1285553271, we treat the final digit (1) 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 1).

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
2
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
5
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
5
Unchanged
Pos 7
3
Doubled → 6
Pos 8
2
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
1
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 3 → 6 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 6 + 5 + 1 + 0 + 5 + 6 + 2 + 1 + 4 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1285553271.

Other Providers at the Same Location


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

Surgery
1818 N MEADE ST, SUITE 240 WEST
APPLETON, WI 54911
Emergency Medicine (Emergency Medical Services)
1818 N MEADE ST
APPLETON, WI 54911
Emergency Medicine (Emergency Medical Services)
1818 N MEADE ST
APPLETON, WI 54911
Nurse Practitioner (Family)
1818 N MEADE ST
APPLETON, WI 54911
Emergency Medicine (Emergency Medical Services)
1818 N MEADE ST
APPLETON, WI 54911
Emergency Medicine (Emergency Medical Services)
1818 N MEADE ST
APPLETON, WI 54911
Emergency Medicine (Emergency Medical Services)
1818 N MEADE ST
APPLETON, WI 54911
Anesthesiology
1818 N MEADE ST
APPLETON, WI 54911
Physical Therapist
1818 N MEADE ST
APPLETON, WI 54911
Genetic Counselor, MS
1818 N MEADE ST
APPLETON, WI 54911
Internal Medicine (Clinical Cardiac Electrophysiology)
1818 N MEADE ST
APPLETON, WI 54911
Specialist/Technologist (Athletic Trainer)
1818 N MEADE ST
APPLETON, WI 54911
Internal Medicine (Cardiovascular Disease)
1818 N MEADE ST
APPLETON, WI 54911
Internal Medicine (Cardiovascular Disease)
1818 N MEADE ST
APPLETON, WI 54911
Nurse Practitioner
1818 N MEADE ST
APPLETON, WI 54911
Nurse Practitioner
1818 N MEADE ST
APPLETON, WI 54911
Internal Medicine (Cardiovascular Disease)
1818 N MEADE ST
APPLETON, WI 54911
Internal Medicine (Cardiovascular Disease)
1818 N MEADE ST
APPLETON, WI 54911
Anesthesiology
1818 N MEADE ST
APPLETON, WI 54911
Physical Therapist
1818 N MEADE ST
APPLETON, WI 54911

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1285553271, enumerated as an "individual" on July 13, 2026.

The provider is located at 1818 N MEADE ST APPLETON, WI 54911 and the phone number is (920) 731-4101.

Nurse Practitioner with taxonomy code 363LF0000X and a focus in Family.