REBECCA LYNNE MARRAZZO LPC, SACIT
NPI 1396518866
Counselor - Professional in Appleton, WI

NPI Status: Active since November 06, 2023

Contact Information

1835 E EDGEWOOD DR STE 105107
APPLETON, WI
ZIP 54913
Phone: (920) 234-6842

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  • Individual
  • Female
  • Counselor
  • Professional

About REBECCA MARRAZZO

This page provides the complete NPI Profile along with additional information for Rebecca Marrazzo, a provider established in Appleton, Wisconsin with a medical specialization in Counselor, focusing in professional . The healthcare provider is registered in the NPI registry with number 1396518866 assigned on November 2023. The practitioner's primary taxonomy code is 101YP2500X with license number 11989-125 (WI). The provider is registered as an individual and her NPI record was last updated June 2026.

NPI
1396518866
Provider Name
REBECCA LYNNE MARRAZZO LPC, SACIT
Gender
Female
Entity Type
Individual
Location Address
1835 E EDGEWOOD DR STE 105107 APPLETON, WI 54913
Location Phone
(920) 234-6842
Mailing Address
752 REED ST NEENAH, WI 54956
Mailing Phone
(920) 450-8218
Is Sole Proprietor?
No
Enumeration Date
11-06-2023
Last Update Date
06-18-2026
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Location Map

Secondary Locations

  • 3240 Jackson St
    Oshkosh, WI 54901
    (920) 231-0143

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.
11989-125
License State
WI

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)
1101YA0400XBehavioral Health & Social Service Providers

Counselor
Addiction (Substance Use Disorder)

20392-130 (WI)

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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 1396518866, 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 64. The final step is to find the difference between that total and the next multiple of ten (70 - 64 = 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
3
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
6
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
1
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
8
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 9 → 18 → 9 5 → 10 → 1 8 → 16 → 7 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 8 + 6 + 1 + 0 + 1 + 1 + 6 + 8 + 1 + 2 + 24 = 64

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

The next multiple of ten after 64 is 70. The difference is the calculated check digit.

70 - 64 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1396518866.

Other Providers at the Same Location


The following 18 providers are registered at the same or a nearby location.

Counselor (Mental Health)
1835 E EDGEWOOD DR STE 105107
APPLETON, WI 54913
Social Worker (Clinical)
1835 E EDGEWOOD DR STE 105107
APPLETON, WI 54913
Counselor (Professional)
1835 E EDGEWOOD DR STE 105107
APPLETON, WI 54913
Social Worker (Clinical)
1835 E EDGEWOOD DR STE 105107
APPLETON, WI 54913
Psychologist (Clinical)
1835 E EDGEWOOD DR STE 105107
APPLETON, WI 54913
Counselor (Professional)
1835 E EDGEWOOD DR STE 105107
APPLETON, WI 54913
Counselor (Professional)
1835 E EDGEWOOD DR STE 105107
APPLETON, WI 54913
Counselor (Professional)
1835 E EDGEWOOD DR STE 105107
APPLETON, WI 54913
Counselor (Professional)
1835 E EDGEWOOD DR STE 105107
APPLETON, WI 54913
Counselor (Professional)
1835 E EDGEWOOD DR STE 105107
APPLETON, WI 54913
Counselor (Professional)
1835 E EDGEWOOD DR STE 105107
APPLETON, WI 54913
Counselor (Professional)
1835 E EDGEWOOD DR STE 105107
APPLETON, WI 54913
Counselor (Professional)
1835 E EDGEWOOD DR STE 105107
APPLETON, WI 54913
Counselor (Professional)
1835 E EDGEWOOD DR STE 105107
APPLETON, WI 54913
Counselor (Professional)
1835 E EDGEWOOD DR STE 105107
APPLETON, WI 54913
Counselor (Professional)
1835 E EDGEWOOD DR STE 105107
APPLETON, WI 54913
Counselor (Professional)
1835 E EDGEWOOD DR STE 105107
APPLETON, WI 54913
Social Worker (Clinical)
1835 E EDGEWOOD DR STE 105107
APPLETON, WI 54913

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1396518866, enumerated as an "individual" on November 06, 2023.

The provider is located at 1835 E EDGEWOOD DR STE 105107 APPLETON, WI 54913 and the phone number is (920) 234-6842.

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