MR. MICHAEL JAMES OPSOMMER LMSW, CAC1
NPI 1033209366
Counselor - Mental Health in Brighton, MI

NPI Status: Active since October 16, 2006

Contact Information

2300 GENOA BUSINESS PARK DR STE 180
BRIGHTON, MI
ZIP 48114
Phone: (810) 220-2787
Fax: (810) 220-2834

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  • Individual
  • Male
  • Counselor
  • Mental Health

About MICHAEL OPSOMMER

This page provides the complete NPI Profile along with additional information for Michael Opsommer, a provider established in Brighton, Michigan with a medical specialization in Counselor, focusing in mental health . The healthcare provider is registered in the NPI registry with number 1033209366 assigned on October 2006. The practitioner's primary taxonomy code is 101YM0800X with license number 6801062764 (MI). The provider is registered as an individual and his NPI record was last updated one year ago.

NPI
1033209366
Provider Name
MR. MICHAEL JAMES OPSOMMER LMSW, CAC1
Gender
Male
Entity Type
Individual
Location Address
2300 GENOA BUSINESS PARK DR STE 180 BRIGHTON, MI 48114
Location Phone
(810) 220-2787
Location Fax
(810) 220-2834
Mailing Address
11735 CRESTVIEW RD WHITMORE LAKE, MI 48189
Mailing Phone
(734) 449-4607
Mailing Fax
(810) 220-2834
Is Sole Proprietor?
No
Enumeration Date
10-16-2006
Last Update Date
09-11-2025
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A mental health counselor like Michael Opsommer provides treatment to individuals, families, couples, and groups for mental and emotional health issues and relationship problems. Mental health counselors treat clients with a variety of conditions, including anxiety, depression, grief, low self-esteem, stress, and suicidal impulses.

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

Counselor Mental Health

Taxonomy Code
101YM0800X
Type
Behavioral Health & Social Service Providers
License No.
6801062764
License State
MI

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)
1101YP2500XBehavioral Health & Social Service Providers

Counselor
Professional

6801062764 (MI)

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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 1033209366, 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 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
1
Doubled → 2
Pos 2
0
Unchanged
Pos 3
3
Doubled → 6
Pos 4
3
Unchanged
Pos 5
2
Doubled → 4
Pos 6
0
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
3
Unchanged
Pos 9
6
Doubled → 12 → 1 + 2
Check
6
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 3 → 6 2 → 4 9 → 18 → 9 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 0 + 6 + 3 + 4 + 0 + 1 + 8 + 3 + 1 + 2 + 24 = 54

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

The next multiple of ten after 54 is 60. The difference is the calculated check digit.

60 - 54 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1033209366.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Social Worker (Clinical)
2300 GENOA BUSINESS PARK DR STE 180
BRIGHTON, MI 48114
Counselor (Mental Health)
2300 GENOA BUSINESS PARK DR STE 180, ADVANCED COUNSELING SERVICES
BRIGHTON, MI 48114
Rehabilitation, Substance Use Disorder Unit
2300 GENOA BUSINESS PARK DR STE 180
BRIGHTON, MI 48114

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1033209366, enumerated as an "individual" on October 16, 2006.

The provider is located at 2300 GENOA BUSINESS PARK DR STE 180 BRIGHTON, MI 48114 and the phone number is (810) 220-2787.

Counselor with taxonomy code 101YM0800X and a focus in Mental Health.