JONAH RHYMER
NPI 1285420653
Prosthetist in Chicago, IL

NPI Status: Active since April 15, 2025

Contact Information

332 S MICHIGAN AVE STE 8044
CHICAGO, IL
ZIP 60604
Phone: (224) 634-4734
Fax: (720) 640-0405

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  • Individual
  • Male
  • Prosthetist

About JONAH RHYMER

This page provides the complete NPI Profile along with additional information for Jonah Rhymer, a provider established in Chicago, Illinois with a medical specialization in Prosthetist. The healthcare provider is registered in the NPI registry with number 1285420653 assigned on April 2025. The practitioner's primary taxonomy code is 224P00000X with license number 211000418 (IL). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1285420653
Provider Name
JONAH RHYMER
Gender
Male
Entity Type
Individual
Location Address
332 S MICHIGAN AVE STE 8044 CHICAGO, IL 60604
Location Phone
(224) 634-4734
Location Fax
(720) 640-0405
Mailing Address
332 S MICHIGAN AVE STE 8044 CHICAGO, IL 60604
Mailing Phone
(224) 634-4734
Mailing Fax
(720) 640-0405
Is Sole Proprietor?
No
Enumeration Date
04-15-2025
Last Update Date
04-15-2025
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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

Prosthetist

Taxonomy Code
224P00000X
Type
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
License No.
211000418
License State
IL
Taxonomy Description
A health care professional who is specifically educated and trained to manage comprehensive prosthetic patient care for individuals who have sustained complete or partial limb loss or absence. Prosthetists assess specific patient needs, formulate an appropriate treatment plan, implement the treatment plan and provide follow-up care.

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1222Z00000XRespiratory, Developmental, Rehabilitative and Restorative Service Providers

Orthotist

213000470 (IL)

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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 1285420653, we treat the final digit (3) 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 57. The final step is to find the difference between that total and the next multiple of ten (60 - 57 = 3).

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

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 + 8 + 2 + 0 + 6 + 1 + 0 + 24 = 57

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

The next multiple of ten after 57 is 60. The difference is the calculated check digit.

60 - 57 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1285420653.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1285420653, enumerated as an "individual" on April 15, 2025.

The provider is located at 332 S MICHIGAN AVE STE 8044 CHICAGO, IL 60604 and the phone number is (224) 634-4734.

Prosthetist with taxonomy code 224P00000X.