DR. MARY ELIZABETH AVELLONE PH.D.
NPI 1699770693
Psychologist - Clinical in Homewood, IL
NPI Status: Active since June 16, 2005
Contact Information
2024 HICKORY RD STE 104
HOMEWOOD, IL
ZIP 60430
Phone: (312) 832-9858
Fax: (312) 822-0712
- Individual
- Female
- Psychologist
- Clinical
About MARY AVELLONE
This page provides the complete NPI Profile along with additional information for Mary Avellone, a provider established in Homewood, Illinois with a medical specialization in Psychologist, focusing in clinical . The healthcare provider is registered in the NPI registry with number 1699770693 assigned on June 2005. The practitioner's primary taxonomy code is 103TC0700X with license number 071005023 (IL). The provider is registered as an individual and her NPI record was last updated March 2026.
- NPI
- 1699770693
- Provider Name
- DR. MARY ELIZABETH AVELLONE PH.D.
- Gender
- Female
- Entity Type
- Individual
- Location Address
- 2024 HICKORY RD STE 104 HOMEWOOD, IL 60430
- Location Phone
- (312) 832-9858
- Location Fax
- (312) 822-0712
- Mailing Address
- 211 E OHIO ST APT 520 CHICAGO, IL 60611
- Mailing Phone
- (312) 832-9858
- Mailing Fax
- (312) 822-0712
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 06-16-2005
- Last Update Date
- 03-16-2026
- Code Navigator
A clinical psychologist like Mary Avellone 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.
- 071005023
- 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.
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) |
|---|---|---|---|---|
| 1 | 103G00000X | Behavioral Health & Social Service Providers | Clinical Neuropsychologist | 071005023 (IL) |
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 |
|---|---|---|---|
| 1607451 | OTHER (01) | IL | BCBS 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 1699770693, 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 77. The final step is to find the difference between that total and the next multiple of ten (80 - 77 = 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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 77 is 80. The difference is the calculated check digit.
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1699770693, enumerated as an "individual" on June 16, 2005.
The provider is located at 2024 HICKORY RD STE 104 HOMEWOOD, IL 60430 and the phone number is (312) 832-9858.
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.
