DR. MICHAEL P JOLKOVSKI PH.D.
NPI 1417930298
Psychologist in Falls Church, VA

NPI Status: Active since November 25, 2005

Contact Information

500 N WASHINGTON ST
SUITE 101
FALLS CHURCH, VA
ZIP 22046
Phone: (703) 533-8677

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  • Individual
  • Male
  • Psychologist

About MICHAEL JOLKOVSKI

This page provides the complete NPI Profile along with additional information for Michael Jolkovski, a provider established in Falls Church, Virginia with a medical specialization in Psychologist. The healthcare provider is registered in the NPI registry with number 1417930298 assigned on November 2005. The practitioner's primary taxonomy code is 103T00000X with license number 0810001826 (VA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1417930298
Provider Name
DR. MICHAEL P JOLKOVSKI PH.D.
Gender
Male
Entity Type
Individual
Location Address
500 N WASHINGTON ST SUITE 101 FALLS CHURCH, VA 22046
Location Phone
(703) 533-8677
Mailing Address
500 N WASHINGTON ST SUITE 101 FALLS CHURCH, VA 22046
Mailing Phone
(703) 533-8677
Is Sole Proprietor?
Yes
Enumeration Date
11-25-2005
Last Update Date
09-11-2025
Code Navigator

A psychologist like Michael Jolkovski 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
License No.
0810001826
License State
VA
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)
1103TC0700XBehavioral Health & Social Service Providers

Psychologist
Clinical

0810001826 (VA)
2103TC1900XBehavioral Health & Social Service Providers

Psychologist
Counseling

0810001826 (VA)
3103TP0814XBehavioral Health & Social Service Providers

Psychologist
Psychoanalysis

0810001826 (VA)

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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 1417930298, we treat the final digit (8) 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 62. The final step is to find the difference between that total and the next multiple of ten (70 - 62 = 8).

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

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 2 + 7 + 1 + 8 + 3 + 0 + 2 + 1 + 8 + 24 = 62

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

The next multiple of ten after 62 is 70. The difference is the calculated check digit.

70 - 62 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1417930298.

Other Providers at the Same Location


The following 2 providers are registered at the same or a nearby location.

Social Worker (Clinical)
500 N WASHINGTON ST, SUITE 101
FALLS CHURCH, VA 22046
Counselor (Mental Health)
500 N WASHINGTON ST
FALLS CHURCH, VA 22046

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1417930298, enumerated as an "individual" on November 25, 2005.

The provider is located at 500 N WASHINGTON ST SUITE 101 FALLS CHURCH, VA 22046 and the phone number is (703) 533-8677.

Psychologist with taxonomy code 103T00000X.