MS. MARIA GUADALUPE CALZADA OTR/L
NPI 1588265607
Occupational Therapist in Des Plaines, IL

NPI Status: Active since November 04, 2020

Contact Information

950 LEE ST
DES PLAINES, IL
ZIP 60016
Phone: (877) 486-4140

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  • Individual
  • Female
  • Occupational Therapist

About MARIA CALZADA

This page provides the complete NPI Profile along with additional information for Maria Calzada, a provider established in Des Plaines, Illinois with a medical specialization in Occupational Therapist. The healthcare provider is registered in the NPI registry with number 1588265607 assigned on November 2020. The practitioner's primary taxonomy code is 225X00000X. The provider is registered as an individual and her NPI record was last updated February 2026.

NPI
1588265607
Provider Name
MS. MARIA GUADALUPE CALZADA OTR/L
Gender
Female
Entity Type
Individual
Location Address
950 LEE ST DES PLAINES, IL 60016
Location Phone
(877) 486-4140
Mailing Address
442 STEELE CT WAUKEGAN, IL 60085
Mailing Phone
(224) 237-7561
Is Sole Proprietor?
No
Enumeration Date
11-04-2020
Last Update Date
02-19-2026
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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

Occupational Therapist

Taxonomy Code
225X00000X
Type
Respiratory, Developmental, Rehabilitative and Restorative Service Providers
License State
IL
Taxonomy Description
An occupational therapist is a person who has graduated from an entry-level occupational therapy program accredited by the Accreditation Council for Occupational Therapy Education (ACOTE) or predecessor organizations, or approved by the World Federation of Occupational Therapists (WFOT), or an equivalent international occupational therapy education program; has successfully completed a period of supervised fieldwork experience required by the occupational therapy program; has passed a nationally recognized entry-level examination for occupational therapists, and fulfills state requirements for licensure, certification, or registration. An occupational therapist provides interventions based on evaluation and which emphasize the therapeutic use of everyday life activities (i.e., occupations) with individuals or groups for the purpose of facilitating participation in roles and situations and in home, school, workplace, community and other settings. Occupational therapy services are provided for the purpose of promoting health and wellness and are provided to those who have or are at risk for developing an illness, injury, disease, disorder, condition, impairment, disability, activity limitation, or participation restriction. Occupational therapists address the physical, cognitive, psychosocial, sensory, and other aspects of occupational performance in a variety of contexts to support engagement in everyday life activities that affect health, well-being, and quality of life.

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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 1588265607, we treat the final digit (7) 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 63. The final step is to find the difference between that total and the next multiple of ten (70 - 63 = 7).

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

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 1 + 6 + 8 + 4 + 6 + 1 + 0 + 6 + 0 + 24 = 63

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

The next multiple of ten after 63 is 70. The difference is the calculated check digit.

70 - 63 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1588265607.

Other Providers at the Same Location


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

Psychologist (Clinical)
950 LEE ST, SUITE 202
DES PLAINES, IL 60016
Physical Therapist
950 LEE ST, SUITE 212
DES PLAINES, IL 60016
Speech-Language Pathologist
950 LEE ST, SUITE 210
DES PLAINES, IL 60016
Occupational Therapist
950 LEE ST, SUITE 210
DES PLAINES, IL 60016
Social Worker (Clinical)
950 LEE ST, 210
DES PLAINES, IL 60016
Speech-Language Pathologist
950 LEE ST, SUITE 210
DES PLAINES, IL 60016
Physical Therapist
950 LEE ST, SUITE 210
DES PLAINES, IL 60016
Psychologist (Clinical)
950 LEE ST, SUITE 202
DES PLAINES, IL 60016
Social Worker (Clinical)
950 LEE ST, SUITE 201
DES PLAINES, IL 60016
Psychologist (Clinical)
950 LEE ST, SUITE 202
DES PLAINES, IL 60016
Behavior Technician
950 LEE ST
DES PLAINES, IL 60016
Behavior Technician
950 LEE ST
DES PLAINES, IL 60016
Psychologist (Clinical)
950 LEE ST, STE 202
DES PLAINES, IL 60016
Speech-Language Pathologist
950 LEE ST
DES PLAINES, IL 60016
Occupational Therapist
950 LEE ST
DES PLAINES, IL 60016
Behavior Technician
950 LEE ST
DES PLAINES, IL 60016
Behavior Technician
950 LEE ST
DES PLAINES, IL 60016
Behavior Technician
950 LEE ST
DES PLAINES, IL 60016
Behavior Technician
950 LEE ST
DES PLAINES, IL 60016
Occupational Therapist
950 LEE ST
DES PLAINES, IL 60016

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1588265607, enumerated as an "individual" on November 04, 2020.

The provider is located at 950 LEE ST DES PLAINES, IL 60016 and the phone number is (877) 486-4140.

Occupational Therapist with taxonomy code 225X00000X.