DAVID ANDREW HERON MD
NPI 1881338069
Psychiatry & Neurology - Neurology in Saint Louis, MO

NPI Status: Active since April 25, 2022

Contact Information

11155 DUNN RD STE 109N
SAINT LOUIS, MO
ZIP 63136
Phone: (314) 953-8799
Fax: (314) 747-3368

NPI Profile Information
Primary Taxonomy
Secondary Locations
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Male
Psychiatry & Neurology
Neurology

About DAVID HERON

This page provides the complete NPI Profile along with additional information for David Heron, a provider established in Saint Louis, Missouri with a medical specialization in Psychiatry & Neurology, focusing in neurology . The healthcare provider is registered in the NPI registry with number 1881338069 assigned on April 2022. The practitioner's primary taxonomy code is 2084N0400X with license number 2022022114 (MO). The provider is registered as an individual and his NPI record was last updated May 2026.

NPI: 1881338069
Provider Name: DAVID ANDREW HERON MD
Gender: Male
Entity Type: Individual
Location Address: 11155 DUNN RD STE 109N SAINT LOUIS, MO 63136
Location Phone: (314) 953-8799
Location Fax: (314) 747-3368
Mailing Address: PO BOX 959203 SAINT LOUIS, MO 63195
Mailing Phone: (314) 953-8799
Mailing Fax: (314) 747-3368
Is Sole Proprietor?: No
Enumeration Date: 04-25-2022
Last Update Date: 05-06-2026
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Location Map

Secondary Locations

1 Barnes Jewish Hospital Plz
Saint Louis, MO 63110
(314) 362-3296

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 Neurology
Taxonomy Code: 2084N0400X
Type: Allopathic & Osteopathic Physicians
License No.: 2022022114
License State: MO
Taxonomy Description: A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures.

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 1881338069, 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 16 → 1 + 6

Pos 4

Unchanged

Pos 5

Doubled → 6

Pos 6

Unchanged

Pos 7

Doubled → 16 → 1 + 6

Pos 8

Unchanged

Pos 9

Doubled → 12 → 1 + 2

Check

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 8 → 16 → 7 3 → 6 8 → 16 → 7 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 6 + 1 + 6 + 3 + 1 + 6 + 0 + 1 + 2 + 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 1881338069.