LEROY CHARLES MARMION MD
NPI 1548207947
Psychiatry & Neurology - Sleep Medicine in Grand Rapids, MI

NPI Status: Active since June 02, 2006

Contact Information

4100 LAKE DR SE STE 200
GRAND RAPIDS, MI
ZIP 49546
Phone: (616) 391-3759

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

Individual
Male
Psychiatry & Neurology
Sleep Medicine

About LEROY MARMION

This page provides the complete NPI Profile along with additional information for Leroy Marmion, a provider established in Grand Rapids, Michigan with a medical specialization in Psychiatry & Neurology, focusing in sleep medicine . The healthcare provider is registered in the NPI registry with number 1548207947 assigned on June 2006. The practitioner's primary taxonomy code is 2084S0012X with license number 4301037442 (MI). The provider is registered as an individual and his NPI record was last updated 5 years ago.

NPI: 1548207947
Provider Name: LEROY CHARLES MARMION MD
Gender: Male
Entity Type: Individual
Location Address: 4100 LAKE DR SE STE 200 GRAND RAPIDS, MI 49546
Location Phone: (616) 391-3759
Mailing Address: 100 MICHIGAN ST NE MC845 GRAND RAPIDS, MI 49503
Is Sole Proprietor?: No
Enumeration Date: 06-02-2006
Last Update Date: 02-26-2021
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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 Sleep Medicine
Taxonomy Code: 2084S0012X
Type: Allopathic & Osteopathic Physicians
License No.: 4301037442
License State: MI
Taxonomy Description: A Psychiatrist or Neurologist who practices Sleep Medicine is certified in the subspecialty of sleep medicine and specializes in the clinical assessment, physiologic testing, diagnosis, management and prevention of sleep and circadian rhythm disorders. Sleep specialists treat patients of any age and use multidisciplinary approaches. Disorders managed by sleep specialists include, but are not limited to, sleep related breathing disorders, insomnia, hypersomnias, circadian rhythm sleep disorders, parasomnias and sleep related movement disorders.

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 1548207947, 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 73. The final step is to find the difference between that total and the next multiple of ten (80 - 73 = 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 8

Pos 4

Unchanged

Pos 5

Doubled → 4

Pos 6

Unchanged

Pos 7

Doubled → 14 → 1 + 4

Pos 8

Unchanged

Pos 9

Doubled → 8

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 4 → 8 2 → 4 7 → 14 → 5 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 5 + 8 + 8 + 4 + 0 + 1 + 4 + 9 + 8 + 24 = 73

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

The next multiple of ten after 73 is 80. The difference is the calculated check digit.

80 - 73 = 7

This NPI is valid

The calculated check digit is 7, which matches the last digit of 1548207947.