BRETT JACOB ELLISON DO
NPI 1790367159
Psychiatry & Neurology - Psychiatry in Riverside, CA

NPI Status: Active since April 26, 2021

Contact Information

900 UNIVERSITY AVE
RIVERSIDE, CA
ZIP 92521
Phone: (951) 827-9197
Fax: (951) 827-7669

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  • Individual
  • Male
  • Psychiatry & Neurology
  • Psychiatry

About BRETT ELLISON

This page provides the complete NPI Profile along with additional information for Brett Ellison, a provider established in Riverside, California with a medical specialization in Psychiatry & Neurology, focusing in psychiatry . The healthcare provider is registered in the NPI registry with number 1790367159 assigned on April 2021. The practitioner's primary taxonomy code is 2084P0800X with license number 20A20588 (CA). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1790367159
Provider Name
BRETT JACOB ELLISON DO
Gender
Male
Entity Type
Individual
Location Address
900 UNIVERSITY AVE RIVERSIDE, CA 92521
Location Phone
(951) 827-9197
Location Fax
(951) 827-7669
Mailing Address
5100 QUAIL RUN RD APT 416 RIVERSIDE, CA 92507
Mailing Phone
(916) 879-7887
Is Sole Proprietor?
No
Enumeration Date
04-26-2021
Last Update Date
07-29-2025
Code Navigator

A psychiatrist like Brett Ellison are primary mental health physicians diagnose and treat mental illnesses through psychotherapy, psychoanalysis, hospitalization and medication. Psychiatrist help patients find solutions through changes in their behavioral patterns, explorations of experiences, group and family therapy.

Location Map

Secondary Locations

  • 26520 Cactus Ave
    Moreno Valley, CA 92555
    (951) 486-4000
  • 555 Technology Ct Ste 300
    Riverside, CA 92507
    (951) 686-8500

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

Psychiatry & Neurology Psychiatry

Taxonomy Code
2084P0800X
Type
Allopathic & Osteopathic Physicians
License No.
20A20588
License State
CA
Taxonomy Description
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.

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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 1790367159, we treat the final digit (9) 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 61. The final step is to find the difference between that total and the next multiple of ten (70 - 61 = 9).

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
7
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
0
Unchanged
Pos 5
3
Doubled → 6
Pos 6
6
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
1
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
9
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 3 → 6 7 → 14 → 5 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 8 + 0 + 6 + 6 + 1 + 4 + 1 + 1 + 0 + 24 = 61

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

The next multiple of ten after 61 is 70. The difference is the calculated check digit.

70 - 61 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1790367159.

Other Providers at the Same Location


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

Dentist
900 UNIVERSITY AVE
RIVERSIDE, CA 92521
Psychologist (Counseling)
900 UNIVERSITY AVE, VEITCH STUDENT CENTER, NORTH WING
RIVERSIDE, CA 92521
Legal Medicine
900 UNIVERSITY AVE, 50 M ATHLETICS AND DANCE
RIVERSIDE, CA 92521
Specialist/Technologist (Athletic Trainer)
900 UNIVERSITY AVE, 50M ATHLETICS AND DANCE
RIVERSIDE, CA 92521
Specialist/Technologist (Athletic Trainer)
900 UNIVERSITY AVE
RIVERSIDE, CA 92521
Specialist/Technologist (Athletic Trainer)
900 UNIVERSITY AVE
RIVERSIDE, CA 92521
Psychiatry & Neurology (Psychiatry)
900 UNIVERSITY AVE
RIVERSIDE, CA 92521
Psychiatry & Neurology (Psychiatry)
900 UNIVERSITY AVE
RIVERSIDE, CA 92521
Internal Medicine
900 UNIVERSITY AVE
RIVERSIDE, CA 92521
Internal Medicine
900 UNIVERSITY AVE
RIVERSIDE, CA 92521
General Practice
900 UNIVERSITY AVE
RIVERSIDE, CA 92521
Family Medicine
900 UNIVERSITY AVE
RIVERSIDE, CA 92521
Psychiatry & Neurology (Psychiatry)
900 UNIVERSITY AVE
RIVERSIDE, CA 92521
Student in an Organized Health Care Education/Training Program
900 UNIVERSITY AVE
RIVERSIDE, CA 92521
Social Worker (Clinical)
900 UNIVERSITY AVE
RIVERSIDE, CA 92521
Specialist/Technologist (Athletic Trainer)
900 UNIVERSITY AVE
RIVERSIDE, CA 92521
Hospitalist
900 UNIVERSITY AVE
RIVERSIDE, CA 92521
Nurse Practitioner
900 UNIVERSITY AVE
RIVERSIDE, CA 92521
Student in an Organized Health Care Education/Training Program
900 UNIVERSITY AVE, SOM EDUCATION BUILDING II
RIVERSIDE, CA 92521
Specialist/Technologist (Athletic Trainer)
900 UNIVERSITY AVE
RIVERSIDE, CA 92521

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1790367159, enumerated as an "individual" on April 26, 2021.

The provider is located at 900 UNIVERSITY AVE RIVERSIDE, CA 92521 and the phone number is (951) 827-9197.

Psychiatry & Neurology with taxonomy code 2084P0800X and a focus in Psychiatry.