DR. NINA GRITZALIS PSYD
NPI 1194863951
Psychologist - Clinical in Orland Park, IL

NPI Status: Active since February 02, 2007

Contact Information

14716 HOLLY CT
ORLAND PARK, IL
ZIP 60462
Phone: (708) 212-3335

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  • Individual
  • Female
  • Psychologist
  • Clinical

About NINA GRITZALIS

This page provides the complete NPI Profile along with additional information for Nina Gritzalis, a provider established in Orland Park, Illinois with a medical specialization in Psychologist, focusing in clinical . The healthcare provider is registered in the NPI registry with number 1194863951 assigned on February 2007. The practitioner's primary taxonomy code is 103TC0700X with license number 071.006039 (IL). The provider is registered as an individual and her NPI record was last updated 10 years ago.

NPI
1194863951
Provider Name
DR. NINA GRITZALIS PSYD
Gender
Female
Entity Type
Individual
Location Address
14716 HOLLY CT ORLAND PARK, IL 60462
Location Phone
(708) 212-3335
Mailing Address
14716 HOLLY CT ORLAND PARK, IL 60462
Mailing Phone
(708) 212-3335
Is Sole Proprietor?
Yes
Enumeration Date
02-02-2007
Last Update Date
01-19-2016
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A clinical psychologist like Nina Gritzalis 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.

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

Psychologist Clinical

Taxonomy Code
103TC0700X
Type
Behavioral Health & Social Service Providers
License No.
071.006039
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.

Insurance Plans Accepted

According to publicly available information the provider might be accepting the following health plans from these health insurance companies:

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

Specific plan information not avaialable, please contact the provider to verify if your insurance plan is accepted.

*Please verify directly with this provider to make sure your insurance plan is currently accepted.

Additional Identifiers

The NPI Enumerator encourages providers to submit additional identifiers with their NPI application although the submission of this information is optional. The additional identifier(s) section includes other numbers or codes currently or formerly used as an identifier for the provider by other public healthcare entities. The identifiers may include UPIN, NSC, OSCAR, DEA, Medicaid State or PIN identification numbers.

Identifier Type / Code Identifier State Identifier Issuer
1632837OTHER (01)ILBCBS
204644MEDICARE PIN (08)IL 

Reviews for DR. NINA GRITZALIS PSYD

  • 5 out of 5 stars - Review by John ***** on March 12, 2026

    All of my interactions with Dr Nina Gritzalis were very rewarding and enjoyable. She was very supportive and helpful to me.

  • 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 1194863951, 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
    1
    Unchanged
    Pos 3
    9
    Doubled → 18 → 1 + 8
    Pos 4
    4
    Unchanged
    Pos 5
    8
    Doubled → 16 → 1 + 6
    Pos 6
    6
    Unchanged
    Pos 7
    3
    Doubled → 6
    Pos 8
    9
    Unchanged
    Pos 9
    5
    Doubled → 10 → 1 + 0
    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 9 → 18 → 9 8 → 16 → 7 3 → 6 5 → 10 → 1

    Step 2: Add all digits plus the NPI constant

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

    2 + 1 + 1 + 8 + 4 + 1 + 6 + 6 + 6 + 9 + 1 + 0 + 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 1194863951.

    Frequently Asked Questions

    The NPI number assigned to this healthcare provider is 1194863951, enumerated as an "individual" on February 02, 2007.

    The provider is located at 14716 HOLLY CT ORLAND PARK, IL 60462 and the phone number is (708) 212-3335.

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

    The provider might be accepting Accepts: Blue Cross Blue Shield, Medicare and Medicaid. Please consult your insurance carrier or call the provider to verify.