MICHAEL SIMAN LSW
NPI 1871449876
Social Worker in Montgomery, OH

NPI Status: Active since March 10, 2026

Contact Information

11085 MONTGOMERY RD STE 250
MONTGOMERY, OH
ZIP 45249
Phone: (513) 800-6787

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

Individual
Male
Social Worker

About MICHAEL SIMAN

This page provides the complete NPI Profile along with additional information for Michael Siman, a provider established in Montgomery, Ohio with a medical specialization in Social Worker. The healthcare provider is registered in the NPI registry with number 1871449876 assigned on March 2026. The practitioner's primary taxonomy code is 104100000X. The provider is registered as an individual and his NPI record was last updated March 2026.

NPI: 1871449876
Provider Name: MICHAEL SIMAN LSW
Gender: Male
Entity Type: Individual
Location Address: 11085 MONTGOMERY RD STE 250 MONTGOMERY, OH 45249
Location Phone: (513) 800-6787
Mailing Address: 11085 MONTGOMERY RD STE 250 MONTGOMERY, OH 45249
Is Sole Proprietor?: Yes
Enumeration Date: 03-10-2026
Last Update Date: 03-10-2026
Code Navigator

A social worker like Michael Siman helps patients solve and cope with problems in their everyday lives, diagnoses and treats mental, behavioral, and emotional problems. Social workers help in wide range of situations, such as adopting a child, illness, divorce, or unemployment.

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: Social Worker
Taxonomy Code: 104100000X
Type: Behavioral Health & Social Service Providers
Taxonomy Description: A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.

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 1871449876, we treat the final digit (6) 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 74. The final step is to find the difference between that total and the next multiple of ten (80 - 74 = 6).

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 → 14 → 1 + 4

Pos 4

Unchanged

Pos 5

Doubled → 8

Pos 6

Unchanged

Pos 7

Doubled → 18 → 1 + 8

Pos 8

Unchanged

Pos 9

Doubled → 14 → 1 + 4

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 7 → 14 → 5 4 → 8 9 → 18 → 9 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 4 + 1 + 8 + 4 + 1 + 8 + 8 + 1 + 4 + 24 = 74

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

The next multiple of ten after 74 is 80. The difference is the calculated check digit.

80 - 74 = 6

This NPI is valid

The calculated check digit is 6, which matches the last digit of 1871449876.