DAVID DEMIAN
NPI 1407745367
Psychiatry & Neurology - Psychiatry in Colton, CA

NPI Status: Active since July 02, 2025

Contact Information

400 N PEPPER AVE
COLTON, CA
ZIP 92324
Phone: (877) 873-2762

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  • Individual
  • Male
  • Psychiatry & Neurology
  • Psychiatry

About DAVID DEMIAN

This page provides the complete NPI Profile along with additional information for David Demian, a provider established in Colton, California with a medical specialization in Psychiatry & Neurology, focusing in psychiatry . The healthcare provider is registered in the NPI registry with number 1407745367 assigned on July 2025. The practitioner's primary taxonomy code is 2084P0800X with license number G29678 (CA). The provider is registered as an individual and his NPI record was last updated January 2026.

NPI
1407745367
Provider Name
DAVID DEMIAN
Gender
Male
Entity Type
Individual
Location Address
400 N PEPPER AVE COLTON, CA 92324
Location Phone
(877) 873-2762
Mailing Address
400 N PEPPER AVE COLTON, CA 92324
Is Sole Proprietor?
No
Enumeration Date
07-02-2025
Last Update Date
01-12-2026
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A psychiatrist like David Demian 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.

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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

Psychiatry & Neurology Psychiatry

Taxonomy Code
2084P0800X
Type
Allopathic & Osteopathic Physicians
License No.
G29678
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 1407745367, we treat the final digit (7) 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 53. The final step is to find the difference between that total and the next multiple of ten (60 - 53 = 7).

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
0
Doubled → 0
Pos 4
7
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
4
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
3
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
7
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 0 → 0 7 → 14 → 5 5 → 10 → 1 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 0 + 7 + 1 + 4 + 4 + 1 + 0 + 3 + 1 + 2 + 24 = 53

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

The next multiple of ten after 53 is 60. The difference is the calculated check digit.

60 - 53 = 7
This NPI is valid
The calculated check digit is 7, which matches the last digit of 1407745367.

Other Providers at the Same Location


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

Pharmacist (Pharmacist Clinician (PhC)/ Clinical Pharmacy Specialist)
400 N PEPPER AVE, ARROWHEAD REGIONAL MEDICAL CENTER
COLTON, CA 92324
Neurological Surgery
400 N PEPPER AVE, 3RD FLOOR
COLTON, CA 92324
Nurse Practitioner (Family)
400 N PEPPER AVE
COLTON, CA 92324
Internal Medicine (Pulmonary Disease)
400 N PEPPER AVE
COLTON, CA 92324
Internal Medicine
400 N PEPPER AVE
COLTON, CA 92324
Internal Medicine
400 N PEPPER AVE
COLTON, CA 92324
Internal Medicine
400 N PEPPER AVE
COLTON, CA 92324
Internal Medicine
400 N PEPPER AVE
COLTON, CA 92324
Emergency Medicine
400 N PEPPER AVE
COLTON, CA 92324
Physician Assistant
400 N PEPPER AVE
COLTON, CA 92324
Family Medicine
400 N PEPPER AVE
COLTON, CA 92324
Physician Assistant
400 N PEPPER AVE
COLTON, CA 92324
Emergency Medicine
400 N PEPPER AVE
COLTON, CA 92324
Emergency Medicine
400 N PEPPER AVE
COLTON, CA 92324
Physician Assistant
400 N PEPPER AVE
COLTON, CA 92324
Physician Assistant
400 N PEPPER AVE
COLTON, CA 92324
Emergency Medicine
400 N PEPPER AVE
COLTON, CA 92324
Internal Medicine
400 N PEPPER AVE
COLTON, CA 92324
Internal Medicine (Rheumatology)
400 N PEPPER AVE
COLTON, CA 92324
Family Medicine
400 N PEPPER AVE
COLTON, CA 92324

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1407745367, enumerated as an "individual" on July 02, 2025.

The provider is located at 400 N PEPPER AVE COLTON, CA 92324 and the phone number is (877) 873-2762.

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