MRS. CYNTHIA LOUISE DENNIS LCSW, MBA
NPI 1780216754
Counselor - Professional in Corte Madera, CA

NPI Status: Active since February 07, 2020

Contact Information

200 TAMAL PLZ STE 235
CORTE MADERA, CA
ZIP 94925
Phone: (415) 497-3905

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  • Individual
  • Female
  • Counselor
  • Professional

About CYNTHIA DENNIS

This page provides the complete NPI Profile along with additional information for Cynthia Dennis, a provider established in Corte Madera, California with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1780216754 assigned on February 2020. The practitioner's primary taxonomy code is 101YP2500X with license number 82946 (CA). The provider is registered as an individual and her NPI record was last updated 5 years ago.

NPI
1780216754
Provider Name
MRS. CYNTHIA LOUISE DENNIS LCSW, MBA
Gender
Female
Entity Type
Individual
Location Address
200 TAMAL PLZ STE 235 CORTE MADERA, CA 94925
Location Phone
(415) 497-3905
Mailing Address
346 ROBIN DR CORTE MADERA, CA 94925
Mailing Phone
(415) 497-3905
Is Sole Proprietor?
Yes
Enumeration Date
02-07-2020
Last Update Date
04-22-2021
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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

Counselor Professional

Taxonomy Code
101YP2500X
Type
Behavioral Health & Social Service Providers
License No.
82946
License State
CA

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)
11041C0700XBehavioral Health & Social Service Providers

Social Worker
Clinical

 

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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 1780216754, we treat the final digit (4) 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 56. The final step is to find the difference between that total and the next multiple of ten (60 - 56 = 4).

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
7
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
0
Unchanged
Pos 5
2
Doubled → 4
Pos 6
1
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
7
Unchanged
Pos 9
5
Doubled → 10 → 1 + 0
Check
4
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 8 → 16 → 7 2 → 4 6 → 12 → 3 5 → 10 → 1

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 6 + 0 + 4 + 1 + 1 + 2 + 7 + 1 + 0 + 24 = 56

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

The next multiple of ten after 56 is 60. The difference is the calculated check digit.

60 - 56 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1780216754.

Other Providers at the Same Location


The following 6 providers are registered at the same or a nearby location.

Psychologist (Clinical)
200 TAMAL PLZ STE 235
CORTE MADERA, CA 94925
Marriage & Family Therapist
200 TAMAL PLZ STE 235
CORTE MADERA, CA 94925
Psychologist
200 TAMAL PLZ STE 235
CORTE MADERA, CA 94925
Psychologist (Clinical)
200 TAMAL PLZ STE 235
CORTE MADERA, CA 94925
Psychologist (Clinical)
200 TAMAL PLZ STE 235
CORTE MADERA, CA 94925
Psychologist (Cognitive & Behavioral)
200 TAMAL PLZ STE 235
CORTE MADERA, CA 94925

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1780216754, enumerated as an "individual" on February 07, 2020.

The provider is located at 200 TAMAL PLZ STE 235 CORTE MADERA, CA 94925 and the phone number is (415) 497-3905.

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