DR. MICHAEL H. MERRILL PHD, LCPC
NPI 1629146386
Psychologist in Chicago, IL

NPI Status: Active since December 01, 2006

Contact Information

1 E DELAWARE PL
SUITE 304
CHICAGO, IL
ZIP 60611
Phone: (312) 944-6425
Fax: (312) 944-6452

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  • Individual
  • Male
  • Psychologist

About MICHAEL MERRILL

This page provides the complete NPI Profile along with additional information for Michael Merrill, a provider established in Chicago, Illinois with a medical specialization in Psychologist. The healthcare provider is registered in the NPI registry with number 1629146386 assigned on December 2006. The practitioner's primary taxonomy code is 103T00000X. The provider is registered as an individual and his NPI record was last updated 19 years ago.

NPI
1629146386
Provider Name
DR. MICHAEL H. MERRILL PHD, LCPC
Gender
Male
Entity Type
Individual
Location Address
1 E DELAWARE PL SUITE 304 CHICAGO, IL 60611
Location Phone
(312) 944-6425
Location Fax
(312) 944-6452
Mailing Address
1 E DELAWARE PL SUITE 304 CHICAGO, IL 60611
Mailing Phone
(312) 944-6425
Mailing Fax
(312) 944-6452
Is Sole Proprietor?
Yes
Enumeration Date
12-01-2006
Last Update Date
12-04-2007
Code Navigator

A psychologist like Michael Merrill studies cognitive, emotional, social processes and behavior by observing, interpreting, and recording how people relate to one another and to their environments. Psychologists gather information and evaluate behavior through controlled laboratory experiments, psychoanalysis, psychotherapy or through personality, performance, aptitude, or intelligence tests, and use this information when testing theories in their research or when treating 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

Taxonomy Code
103T00000X
Type
Behavioral Health & Social Service Providers
Taxonomy Description
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.

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)
1101YP2500XBehavioral Health & Social Service Providers

Counselor
Professional

(IL)
2103TB0200XBehavioral Health & Social Service Providers

Psychologist
Cognitive & Behavioral

 
3103TH0004XBehavioral Health & Social Service Providers

Psychologist
Health

 

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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 1629146386, we treat the final digit (6) 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 6).

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
6
Unchanged
Pos 3
2
Doubled → 4
Pos 4
9
Unchanged
Pos 5
1
Doubled → 2
Pos 6
4
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
3
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
6
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 1 → 2 6 → 12 → 3 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 4 + 9 + 2 + 4 + 1 + 2 + 3 + 1 + 6 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1629146386.

Other Providers at the Same Location


The following 14 providers are registered at the same or a nearby location.

Internal Medicine
1 E DELAWARE PL, 501
CHICAGO, IL 60611
Internal Medicine
1 E DELAWARE PL, 501
CHICAGO, IL 60611
Legal Medicine
1 E DELAWARE PL, 501
CHICAGO, IL 60611
Chiropractor
1 E DELAWARE PL, SUITE 401
CHICAGO, IL 60611
Dentist (General Practice)
1 E DELAWARE PL, STE 205
CHICAGO, IL 60611
Dentist (General Practice)
1 E DELAWARE PL, STE 205
CHICAGO, IL 60611
Social Worker (Clinical)
1 E DELAWARE PL, SUITE 310
CHICAGO, IL 60611
Marriage & Family Therapist
1 E DELAWARE PL, SUITE 310
CHICAGO, IL 60611
Marriage & Family Therapist
1 E DELAWARE PL, SUITE 310
CHICAGO, IL 60611
Social Worker (Clinical)
1 E DELAWARE PL, STE. #310
CHICAGO, IL 60611
Dermatology (Procedural Dermatology)
1 E DELAWARE PL, STE 501
CHICAGO, IL 60611
Counselor (Professional)
1 E DELAWARE PL, 310
CHICAGO, IL 60611
Optometrist
1 E DELAWARE PL
CHICAGO, IL 60611
Chiropractor
1 E DELAWARE PL, SUITE 401B
CHICAGO, IL 60611

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1629146386, enumerated as an "individual" on December 01, 2006.

The provider is located at 1 E DELAWARE PL SUITE 304 CHICAGO, IL 60611 and the phone number is (312) 944-6425.

Psychologist with taxonomy code 103T00000X.