MS. MARIANNE CROONQUIST M.S., MFT
NPI 1942487756
Counselor - Professional in San Dimas, CA

NPI Status: Active since January 23, 2008

Contact Information

1115 VIA VERDE AVE.
SAN DIMAS, CA
ZIP 91773
Phone: (626) 806-8772
Fax: (909) 599-6661

Get Directions Write a Review

  • Individual
  • Female
  • Counselor
  • Professional

About MARIANNE CROONQUIST

This page provides the complete NPI Profile along with additional information for Marianne Croonquist, a provider established in San Dimas, California with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1942487756 assigned on January 2008. The practitioner's primary taxonomy code is 101YP2500X with license number 36282 (CA). The provider is registered as an individual and her NPI record was last updated 18 years ago.

NPI
1942487756
Provider Name
MS. MARIANNE CROONQUIST M.S., MFT
Gender
Female
Entity Type
Individual
Location Address
1115 VIA VERDE AVE. SAN DIMAS, CA 91773
Location Phone
(626) 806-8772
Location Fax
(909) 599-6661
Mailing Address
1115 VIA VERDE AVE. SAN DIMAS, CA 91773
Mailing Phone
(626) 806-8772
Mailing Fax
(909) 599-6661
Is Sole Proprietor?
Yes
Enumeration Date
01-23-2008
Last Update Date
01-23-2008
Code Navigator

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 Professional

Taxonomy Code
101YP2500X
Type
Behavioral Health & Social Service Providers
License No.
36282
License State
CA

Reviews for MS. MARIANNE CROONQUIST M.S., MFT

There are currently no reviews for this provider. Be the first person to share your experience with this provider by filling out our review form. Your insights are appreciated and will help others make informed decisions.

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 1942487756, 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
1
Doubled → 2
Pos 2
9
Unchanged
Pos 3
4
Doubled → 8
Pos 4
2
Unchanged
Pos 5
4
Doubled → 8
Pos 6
8
Unchanged
Pos 7
7
Doubled → 14 → 1 + 4
Pos 8
7
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
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 4 → 8 4 → 8 7 → 14 → 5 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 8 + 2 + 8 + 8 + 1 + 4 + 7 + 1 + 0 + 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 1942487756.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1942487756, enumerated as an "individual" on January 23, 2008.

The provider is located at 1115 VIA VERDE AVE. SAN DIMAS, CA 91773 and the phone number is (626) 806-8772.

Counselor with taxonomy code 101YP2500X and a focus in Professional.