DR. FELIX KATE DEISS PSY.D.
NPI 1992489520
Psychologist - Clinical in Chicago, IL

NPI Status: Active since June 14, 2023

Contact Information

213 W INSTITUTE PL STE 500
CHICAGO, IL
ZIP 60610
Phone: (801) 641-3208

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  • Individual
  • Male
  • Psychologist
  • Clinical
  • Opted-Out Medicare

About FELIX DEISS

This page provides the complete NPI Profile along with additional information for Felix Deiss, a provider established in Chicago, Illinois with a medical specialization in Psychologist, focusing in clinical . The healthcare provider is registered in the NPI registry with number 1992489520 assigned on June 2023. The practitioner's primary taxonomy code is 103TC0700X with license number 071010982 (IL). The provider is registered as an individual and his NPI record was last updated May 2026.

NPI
1992489520
Provider Name
DR. FELIX KATE DEISS PSY.D.
Gender
Male
Entity Type
Individual
Location Address
213 W INSTITUTE PL STE 500 CHICAGO, IL 60610
Location Phone
(801) 641-3208
Mailing Address
213 W INSTITUTE PL STE 500 CHICAGO, IL 60610
Mailing Phone
(801) 641-3208
Is Sole Proprietor?
No
Enumeration Date
06-14-2023
Last Update Date
05-22-2026
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A clinical psychologist like Felix Deiss 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.

The provider doesn't accept Medicare and has signed an affidavit to be excluded from the Medicare program. If you are a Medicare beneficiary this means a provider can charge whatever they want for services rendered but must follow certain rules to do so. Felix Deiss opted out of Medicare effective on 12-19-2024 until 12-19-2026. Opt out periods last for two years and cannot be terminated unless the provider is opting out for the very first time and the affidavit is terminated no later than 90 days after the opt out effective date. Opt-out affidavits might renew automatically renew every two years. The provider opted out of Medicare and cannot order and refer services to other healthcare providers.

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.
071010982
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)
1103TC0700XBehavioral Health & Social Service Providers

Psychologist
Clinical

4129 (OR)

Medicare Participation & PECOS Enrollment Status

What is PECOS?
PECOS is the online Medicare enrollment management system or Provider, Enrollment, Chain and Ownership System. The PECOS system is a database of providers who have registered with CMS as providers or suppliers. PECOS is the primary source of information about verified Medicare professionals. Providers that want to participate in this program need to enroll in PECOS with their NPI number to avoid denied claims.

  • Opted-Out of Medicare? Yes

  • Opt-Out Effective Date: 12-19-2024

  • Opt-Out End Date: 12-19-2026

  • Eligible to Order and Refer? No

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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 1992489520, we treat the final digit (0) 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 80. The final step is to find the difference between that total and the next multiple of ten (80 - 80 = 0).

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
9
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
2
Unchanged
Pos 5
4
Doubled → 8
Pos 6
8
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
5
Unchanged
Pos 9
2
Doubled → 4
Check
0
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 4 → 8 9 → 18 → 9 2 → 4

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 8 + 2 + 8 + 8 + 1 + 8 + 5 + 4 + 24 = 80

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

The next multiple of ten after 80 is 80. The difference is the calculated check digit.

80 - 80 = 0
This NPI is valid
The calculated check digit is 0, which matches the last digit of 1992489520.

Other Providers at the Same Location


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

Counselor (Mental Health)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Counselor (Mental Health)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Marriage & Family Therapist
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Counselor (Professional)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Clinic/Center (Mental Health (Including Community Mental Health Center))
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Counselor (Mental Health)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Psychologist (Cognitive & Behavioral)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Nurse Practitioner (Psychiatric/Mental Health)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Clinic/Center (Mental Health (Including Community Mental Health Center))
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Counselor (Mental Health)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Counselor (Professional)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Counselor (Professional)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Social Worker (Clinical)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Social Worker (Clinical)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Social Worker (Clinical)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Social Worker (Clinical)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Social Worker (Clinical)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Social Worker (Clinical)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Counselor (Mental Health)
213 W INSTITUTE PL STE 500
CHICAGO, IL 60610
Counselor (Professional)
213 W INSTITUTE PL STE 500, STE 500
CHICAGO, IL 60610

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1992489520, enumerated as an "individual" on June 14, 2023.

The provider is located at 213 W INSTITUTE PL STE 500 CHICAGO, IL 60610 and the phone number is (801) 641-3208.

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