REBECCA SEIDEMANN PLLC
NPI 1972456671
Clinic/Center - Adult Mental Health in Ann Arbor, MI

NPI Status: Active since February 20, 2026

Contact Information

120 E LIBERTY ST STE 310
ANN ARBOR, MI
ZIP 48104
Phone: (734) 328-2192

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  • Organization
  • Clinic/Center
  • Adult Mental Health

About REBECCA SEIDEMANN PLLC

This page provides the complete NPI Profile along with additional information for Rebecca Seidemann Pllc, a provider established in Ann Arbor, Michigan operating as a Clinic/center, focusing in adult mental health . The healthcare provider is registered in the NPI registry with number 1972456671 assigned on February 2026. The practitioner's primary taxonomy code is 261QM0850X. The provider is registered as an organization and their NPI record was last updated February 2026. The authorized official of this NPI record is Rebecca R Seidemann (Social Worker)

NPI
1972456671
Provider Name
REBECCA SEIDEMANN PLLC
Entity Type
Organization
Location Address
120 E LIBERTY ST STE 310 ANN ARBOR, MI 48104
Location Phone
(734) 328-2192
Mailing Address
1808 DEXTER AVE APT 1 ANN ARBOR, MI 48103
Mailing Phone
(734) 328-2192
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
02-20-2026
Last Update Date
02-20-2026
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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

Clinic/Center Adult Mental Health

Taxonomy Code
261QM0850X
Type
Ambulatory Health Care Facilities
Taxonomy Description
An entity, facility, or distinct part of a facility providing diagnostic, treatment, and prescriptive services related to mental and behavioral disorders in adults.

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)
1261QM0855XAmbulatory Health Care Facilities

Clinic/Center
Adolescent and Children Mental Health

 

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

REBECCA R SEIDEMANN

Authorized Official Title
SOCIAL WORKER
Authorized Official Phone
(734) 328-2192

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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 1972456671, we treat the final digit (1) 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 69. The final step is to find the difference between that total and the next multiple of ten (70 - 69 = 1).

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
9
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
2
Unchanged
Pos 5
4
Doubled → 8
Pos 6
5
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
6
Unchanged
Pos 9
7
Doubled → 14 → 1 + 4
Check
1
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 6 → 12 → 3 7 → 14 → 5

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 1 + 4 + 2 + 8 + 5 + 1 + 2 + 6 + 1 + 4 + 24 = 69

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

The next multiple of ten after 69 is 70. The difference is the calculated check digit.

70 - 69 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1972456671.

Other Providers at the Same Location


The following 7 providers are registered at the same or a nearby location.

Psychologist
120 E LIBERTY ST STE 310
ANN ARBOR, MI 48104
Social Worker (Clinical)
120 E LIBERTY ST STE 310
ANN ARBOR, MI 48104
Social Worker (Clinical)
120 E LIBERTY ST STE 310
ANN ARBOR, MI 48104
Clinic/Center (Adult Mental Health)
120 E LIBERTY ST STE 310
ANN ARBOR, MI 48104
Social Worker
120 E LIBERTY ST STE 310
ANN ARBOR, MI 48104
Social Worker
120 E LIBERTY ST STE 310
ANN ARBOR, MI 48104
Social Worker (Clinical)
120 E LIBERTY ST STE 310
ANN ARBOR, MI 48104

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1972456671, enumerated as an "organization" on February 20, 2026.

The provider is located at 120 E LIBERTY ST STE 310 ANN ARBOR, MI 48104 and the phone number is (734) 328-2192.

Clinic/Center with taxonomy code 261QM0850X and a focus in Adult Mental Health.