DR. REBECCA EILEEN PATKUNAS PSYD
NPI 1225928781
Psychologist - Clinical in Lombard, IL

NPI Status: Active since July 07, 2025

Contact Information

477 E BUTTERFIELD RD
LOMBARD, IL
ZIP 60148
Phone: (630) 909-9094

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  • Individual
  • Female
  • Psychologist
  • Clinical

About REBECCA PATKUNAS

This page provides the complete NPI Profile along with additional information for Rebecca Patkunas, a provider established in Lombard, Illinois with a medical specialization in Psychologist, focusing in clinical . The healthcare provider is registered in the NPI registry with number 1225928781 assigned on July 2025. The practitioner's primary taxonomy code is 103TC0700X with license number 071011459 (IL). The provider is registered as an individual and her NPI record was last updated February 2026.

NPI
1225928781
Provider Name
DR. REBECCA EILEEN PATKUNAS PSYD
Other Name
DR. REBECCA EILEEN HANS PSYD
Other Name Type
Former Name (1)
Gender
Female
Entity Type
Individual
Location Address
477 E BUTTERFIELD RD LOMBARD, IL 60148
Location Phone
(630) 909-9094
Mailing Address
5712 WALNUT AVE APT 1A DOWNERS GROVE, IL 60516
Mailing Phone
(708) 557-3449
Is Sole Proprietor?
No
Enumeration Date
07-07-2025
Last Update Date
02-15-2026
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A clinical psychologist like Rebecca Patkunas assesses, diagnoses, and treats mental, emotional, and behavioral disorders. Clinical psychologists help people deal with problems ranging from short-term personal issues to severe, chronic conditions. Clinical psychologists interview patients, give diagnostic tests, provide psychotherapy and design behavior modification programs to help patients.

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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

Psychologist Clinical

Taxonomy Code
103TC0700X
Type
Behavioral Health & Social Service Providers
License No.
071011459
License State
IL
Taxonomy Description
A psychologist who provides continuing and comprehensive mental and behavioral health care for individuals and families; consultation to agencies and communities; training, education and supervision; and research-based practice. It is a specialty in breadth -- one that is broadly inclusive of severe psychopathology -- and marked by comprehensiveness and integration of knowledge and skill from a broad array of disciplines within and outside of psychology proper. The scope of clinical psychology encompasses all ages, multiple diversities and varied systems.

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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 1225928781, 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 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
2
Doubled → 4
Pos 4
5
Unchanged
Pos 5
9
Doubled → 18 → 1 + 8
Pos 6
2
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
7
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
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 2 → 4 9 → 18 → 9 8 → 16 → 7 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 4 + 5 + 1 + 8 + 2 + 1 + 6 + 7 + 1 + 6 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1225928781.

Other Providers at the Same Location


The following 12 providers are registered at the same or a nearby location.

Psychologist (Clinical)
477 E BUTTERFIELD RD, SUITE LL005
LOMBARD, IL 60148
Psychologist (Clinical)
477 E BUTTERFIELD RD, SUITE 201
LOMBARD, IL 60148
Ophthalmology
477 E BUTTERFIELD RD, STE. 101
LOMBARD, IL 60148
Optometrist (Corneal and Contact Management)
477 E BUTTERFIELD RD, STE. 101
LOMBARD, IL 60148
Ophthalmology
477 E BUTTERFIELD RD, SUITE 101
LOMBARD, IL 60148
Clinic/Center (Adult Mental Health)
477 E BUTTERFIELD RD, SUITE 201
LOMBARD, IL 60148
Counselor (Professional)
477 E BUTTERFIELD RD
LOMBARD, IL 60148
In Home Supportive Care
477 E BUTTERFIELD RD, SUITE 400B
LOMBARD, IL 60148
Counselor (Professional)
477 E BUTTERFIELD RD
LOMBARD, IL 60148
Psychologist (Clinical)
477 E BUTTERFIELD RD, SUITE 204
LOMBARD, IL 60148
Counselor (Professional)
477 E BUTTERFIELD RD
LOMBARD, IL 60148
Social Worker (Clinical)
477 E BUTTERFIELD RD
LOMBARD, IL 60148

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1225928781, enumerated as an "individual" on July 07, 2025.

The provider is located at 477 E BUTTERFIELD RD LOMBARD, IL 60148 and the phone number is (630) 909-9094.

Psychologist with taxonomy code 103TC0700X and a focus in Clinical.