MARK MUSE COUNSELING, LLC
NPI 1811659881
Clinic/Center - Adult Mental Health in St Petersburg, FL

NPI Status: Active since October 07, 2021

Contact Information

7901 4TH ST N STE 6375
ST PETERSBURG, FL
ZIP 33702
Phone: (321) 247-3044
Fax: (321) 445-9781

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NPPES record last updated: August 26, 2022. Verified against the NPPES registry weekly; last sync: July 12, 2026.

Record update history: Aug 26, 2022, Oct 7, 2021 (2 updates tracked since 2021).

  • Organization
  • Clinic/Center
  • Adult Mental Health

About MARK MUSE COUNSELING, LLC

This page provides the complete NPI Profile along with additional information for Mark Muse Counseling, Llc, a provider established in St Petersburg, Florida operating as a Clinic/center, focusing in adult mental health . The healthcare provider is registered in the NPI registry with number 1811659881 assigned on October 2021. The practitioner's primary taxonomy code is 261QM0850X. The provider is registered as an organization and their NPI record was last updated 4 years ago. The authorized official of this NPI record is Mark Michael Muse Lcsw, Licsw (Therapist/owner)

NPI
1811659881
Provider Name
MARK MUSE COUNSELING, LLC
Entity Type
Organization
Location Address
7901 4TH ST N STE 6375 ST PETERSBURG, FL 33702
Location Phone
(321) 247-3044
Location Fax
(321) 445-9781
Mailing Address
7901 4TH ST N STE 6375 ST PETERSBURG, FL 33702
Mailing Phone
(321) 247-3044
Mailing Fax
(321) 445-9781
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
10-07-2021
Last Update Date
08-26-2022
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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.

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

MARK MICHAEL MUSE LCSW, LICSW

Authorized Official Title
THERAPIST/OWNER
Authorized Official Phone
(321) 247-3044

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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 1811659881, 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
8
Unchanged
Pos 3
1
Doubled → 2
Pos 4
1
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
5
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
8
Unchanged
Pos 9
8
Doubled → 16 → 1 + 6
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 1 → 2 6 → 12 → 3 9 → 18 → 9 8 → 16 → 7

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 2 + 1 + 1 + 2 + 5 + 1 + 8 + 8 + 1 + 6 + 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 1811659881.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Social Worker (Clinical)
7901 4TH ST N STE 6375
ST PETERSBURG, FL 33702

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1811659881, enumerated as an "organization" on October 07, 2021.

The provider is located at 7901 4TH ST N STE 6375 ST PETERSBURG, FL 33702 and the phone number is (321) 247-3044.

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