NATHAN OSTERMANN DO
NPI 1255275160
Military Health Care Provider in Jacksonville, FL

NPI Status: Active since April 20, 2026

Contact Information

2080 CHILD ST DEPT 5000
JACKSONVILLE, FL
ZIP 32214
Phone: (316) 494-9633

NPI Profile Information
Primary Taxonomy
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Military Health Care Provider

About NATHAN OSTERMANN

This page provides the complete NPI Profile along with additional information for Nathan Ostermann, a provider established in Jacksonville, Florida with a medical specialization in Military Health Care Provider. The healthcare provider is registered in the NPI registry with number 1255275160 assigned on April 2026. The practitioner's primary taxonomy code is 171000000X. The provider is registered as an individual and his NPI record was last updated April 2026.

NPI: 1255275160
Provider Name: NATHAN OSTERMANN DO
Gender: Male
Entity Type: Individual
Location Address: 2080 CHILD ST DEPT 5000 JACKSONVILLE, FL 32214
Location Phone: (316) 494-9633
Mailing Address: 128 CIRCLE DR WICHITA, KS 67218
Mailing Phone: (316) 494-9633
Is Sole Proprietor?: No
Enumeration Date: 04-20-2026
Last Update Date: 04-20-2026
Code Navigator

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: Military Health Care Provider
Taxonomy Code: 171000000X
Type: Other Service Providers
License State: FL
Taxonomy Description: Active duty military health care providers not otherwise classified who need to be separately identified for operational, clinical, or administrative processes.

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 1255275160, we treat the final digit (0) 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 50. The final step is to find the difference between that total and the next multiple of ten (50 - 50 = 0).

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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 10 → 1 + 0

Pos 4

Unchanged

Pos 5

Doubled → 4

Pos 6

Unchanged

Pos 7

Doubled → 10 → 1 + 0

Pos 8

Unchanged

Pos 9

Doubled → 12 → 1 + 2

Check

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 5 → 10 → 1 2 → 4 5 → 10 → 1 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 1 + 0 + 5 + 4 + 7 + 1 + 0 + 1 + 1 + 2 + 24 = 50

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

The next multiple of ten after 50 is 50. The difference is the calculated check digit.

50 - 50 = 0

This NPI is valid

The calculated check digit is 0, which matches the last digit of 1255275160.