REBECCA ANN WILLIS
NPI 1831021872
Social Worker - Clinical in Worcester, MA
NPI Status: Active since June 02, 2026
Contact Information
55 LAKE AVE N
WORCESTER, MA
ZIP 01655
Phone: (855) 862-7763
This NPI profile has been added to the NPI registry within the last 30 days.
- Individual
- Social Worker
- Clinical
About REBECCA WILLIS
This page provides the complete NPI Profile along with additional information for Rebecca Willis, a provider established in Worcester, Massachusetts operating as a Social Worker, focusing in clinical . The healthcare provider is registered in the NPI registry with number 1831021872 assigned on June 2026. The practitioner's primary taxonomy code is 1041C0700X with license number LCSW229611 (MA). The provider is registered as an individual and their NPI record was last updated June 2026.
- NPI
- 1831021872
- Provider Name
- REBECCA ANN WILLIS
- Gender
- Entity Type
- Individual
- Location Address
- 55 LAKE AVE N WORCESTER, MA 01655
- Location Phone
- (855) 862-7763
- Mailing Address
- 76 SAWYER HILL RD BERLIN, MA 01503
- Mailing Phone
- (508) 768-5965
- Is Sole Proprietor?
- Yes
- Enumeration Date
- 06-02-2026
- Last Update Date
- 06-02-2026
- Code Navigator
A clinical social worker like Rebecca Willis is licensed to diagnose and treat mental, behavioral, and emotional disorders. A clinical social worker helps patients develop strategies to change behavior or cope with difficult situations and refer patients to other resources or services, such as support groups or other mental health professionals.
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
Social Worker Clinical
- Taxonomy Code
- 1041C0700X
- Type
- Behavioral Health & Social Service Providers
- License No.
- LCSW229611
- License State
- MA
- Taxonomy Description
- A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
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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 1831021872, we treat the final digit (2) 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 58. The final step is to find the difference between that total and the next multiple of ten (60 - 58 = 2).
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.
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.
Step 2: Add all digits plus the NPI constant
Add the transformed values, the unchanged digits, and the constant 24.
Step 3: Find the amount needed to reach the next multiple of 10
The next multiple of ten after 58 is 60. The difference is the calculated check digit.
Other Providers at the Same Location
The following 20 providers are registered at the same or a nearby location.
WORCESTER, MA 01655
WORCESTER, MA 01655
WORCESTER, MA 01655
WORCESTER, MA 01655
WORCESTER, MA 01655
WORCESTER, MA 01655
WORCESTER, MA 01655
WORCESTER, MA 01655
WORCESTER, MA 01655
WORCESTER, MA 01655
WORCESTER, MA 01655
WORCESTER, MA 01655
WORCESTER, MA 01655
Frequently Asked Questions
The NPI number assigned to this healthcare provider is 1831021872, enumerated as an "individual" on June 02, 2026.
The provider is located at 55 LAKE AVE N WORCESTER, MA 01655 and the phone number is (855) 862-7763.
Social Worker with taxonomy code 1041C0700X and a focus in Clinical.
