JOHN D ROGAKOS MD
NPI 1427189331
Psychiatry & Neurology - Child & Adolescent Psychiatry in St Louis, MO

NPI Status: Active since March 09, 2007

Contact Information

665 S SKINKER BLVD
STE 110
ST LOUIS, MO
ZIP 63105
Phone: (314) 725-2199

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  • Individual
  • Male
  • Psychiatry & Neurology
  • Child & Adolescent Psychiatry

About JOHN ROGAKOS

This page provides the complete NPI Profile along with additional information for John Rogakos, a provider established in St Louis, Missouri with a medical specialization in Psychiatry & Neurology, focusing in child & adolescent psychiatry . The healthcare provider is registered in the NPI registry with number 1427189331 assigned on March 2007. The practitioner's primary taxonomy code is 2084P0804X with license number 108817 (MO). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1427189331
Provider Name
JOHN D ROGAKOS MD
Gender
Male
Entity Type
Individual
Location Address
665 S SKINKER BLVD STE 110 ST LOUIS, MO 63105
Location Phone
(314) 725-2199
Mailing Address
665 SOUTH SKINKER BLVD STE 110 ST LOUIS, MO 63105
Mailing Phone
(314) 725-2199
Mailing Fax
Is Sole Proprietor?
No
Enumeration Date
03-09-2007
Last Update Date
09-11-2025
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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 Child & Adolescent Psychiatry

Taxonomy Code
2084P0804X
Type
Allopathic & Osteopathic Physicians
License No.
108817
License State
MO
Taxonomy Description
Child & Adolescent Psychiatry is a subspecialty of psychiatry with additional skills and training in the diagnosis and treatment of developmental, behavioral, emotional, and mental disorders of childhood and adolescence.

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)
12084P0800XAllopathic & Osteopathic Physicians

Psychiatry & Neurology
Psychiatry

108817 (MO)

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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 1427189331, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

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

Step 2: Add all digits plus the NPI constant

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

2 + 4 + 4 + 7 + 2 + 8 + 1 + 8 + 3 + 6 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1427189331.

Other Providers at the Same Location


The following 4 providers are registered at the same or a nearby location.

Dentist (General Practice)
665 S SKINKER BLVD, FORSYTHE DENTAL GROUP
SAINT LOUIS, MO 63105
Psychiatry & Neurology (Psychiatry)
665 S SKINKER BLVD, SUITE 110
SAINT LOUIS, MO 63105
Social Worker (Clinical)
665 S SKINKER BLVD, #20-C
SAINT LOUIS, MO 63105
Psychologist (Clinical)
665 S SKINKER BLVD
SAINT LOUIS, MO 63105

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1427189331, enumerated as an "individual" on March 09, 2007.

The provider is located at 665 S SKINKER BLVD STE 110 ST LOUIS, MO 63105 and the phone number is (314) 725-2199.

Psychiatry & Neurology with taxonomy code 2084P0804X and a focus in Child & Adolescent Psychiatry.