MR. MARC ALAN GERST JR. SNP
NPI 1215855382
Psychiatry & Neurology - Psychiatry in Wildwood, MO

NPI Status: Active since July 07, 2026

Contact Information

16555 MANCHESTER RD
WILDWOOD, MO
ZIP 63040
Phone: (636) 232-3201

Get Directions Write a Review

  • Individual
  • Male
  • Psychiatry & Neurology
  • Psychiatry

About MARC GERST

This page provides the complete NPI Profile along with additional information for Marc Gerst, a provider established in Wildwood, Missouri with a medical specialization in Psychiatry & Neurology, focusing in psychiatry . The healthcare provider is registered in the NPI registry with number 1215855382 assigned on July 2026. The practitioner's primary taxonomy code is 2084P0800X with license number 2019039981 (MO). The provider is registered as an individual and his NPI record was last updated July 2026.

NPI
1215855382
Provider Name
MR. MARC ALAN GERST JR. SNP
Gender
Male
Entity Type
Individual
Location Address
16555 MANCHESTER RD WILDWOOD, MO 63040
Location Phone
(636) 232-3201
Mailing Address
318 BEACON POINT LN WILDWOOD, MO 63040
Mailing Phone
(636) 232-3201
Is Sole Proprietor?
No
Enumeration Date
07-07-2026
Last Update Date
07-07-2026
Code Navigator

A psychiatrist like Marc Gerst 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

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.
2019039981
License State
MO
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.

Reviews for MR. MARC ALAN GERST JR. SNP

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1215855382, we treat the final digit (2) 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 2).

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
2
Unchanged
Pos 3
1
Doubled → 2
Pos 4
5
Unchanged
Pos 5
8
Doubled → 16 → 1 + 6
Pos 6
5
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
3
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
Check
2
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 8 → 16 → 7 5 → 10 → 1 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 2 + 2 + 5 + 1 + 6 + 5 + 1 + 0 + 3 + 1 + 6 + 24 = 58

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

The next multiple of ten after 58 is 60. The difference is the calculated check digit.

60 - 58 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1215855382.

Other Providers at the Same Location


The following 11 providers are registered at the same or a nearby location.

Pediatrics
16555 MANCHESTER RD
WILDWOOD, MO 63040
Pediatrics
16555 MANCHESTER RD, SUITE 201
WILDWOOD, MO 63040
Family Medicine
16555 MANCHESTER RD, SUITE 100
GROVER, MO 63040
Pediatrics
16555 MANCHESTER RD, SUITE 201
WILDWOOD, MO 63040
Pediatrics
16555 MANCHESTER RD, SUITE 201
GROVER, MO 63040
Nurse Practitioner (Pediatrics)
16555 MANCHESTER RD, SUITE 100
GROVER, MO 63040
Family Medicine
16555 MANCHESTER RD, SUITE 100
WILDWOOD, MO 63040
Nurse Practitioner
16555 MANCHESTER RD, SUITE 110
WILDWOOD, MO 63040
Nurse Practitioner (Adult Health)
16555 MANCHESTER RD, SUITE 100
WILDWOOD, MO 63040
Family Medicine
16555 MANCHESTER RD, SUITE 100
WILDWOOD, MO 63040
Nurse Practitioner (Family)
16555 MANCHESTER RD
GROVER, MO 63040

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1215855382, enumerated as an "individual" on July 07, 2026.

The provider is located at 16555 MANCHESTER RD WILDWOOD, MO 63040 and the phone number is (636) 232-3201.

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