LISA C WILLIAMS
NPI 1770462491
Peer Specialist in Dover, DE

NPI Status: Active since August 27, 2025

Contact Information

8 THE GRN STE A
DOVER, DE
ZIP 19901
Phone: (302) 563-7318

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  • Individual
  • Female
  • Peer Specialist

About LISA WILLIAMS

This page provides the complete NPI Profile along with additional information for Lisa Williams, a provider established in Dover, Delaware with a medical specialization in Peer Specialist. The healthcare provider is registered in the NPI registry with number 1770462491 assigned on August 2025. The practitioner's primary taxonomy code is 175T00000X with license number 2471 (DE). The provider is registered as an individual and her NPI record was last updated May 2026. Lisa Williams operates as a Multi-Specialty Group with one or more individual practitioners, who practice different areas of specialization.

NPI
1770462491
Provider Name
LISA C WILLIAMS
Gender
Female
Entity Type
Individual
Location Address
8 THE GRN STE A DOVER, DE 19901
Location Phone
(302) 563-7318
Mailing Address
1207 GLOSSY IBIS CT MIDDLETOWN, DE 19709
Mailing Phone
(302) 563-7318
Is Sole Proprietor?
Yes
Enumeration Date
08-27-2025
Last Update Date
05-14-2026
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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

Peer Specialist

Taxonomy Code
175T00000X
Type
Other Service Providers
License No.
2471
License State
DE
Taxonomy Description
Individuals certified to perform peer support services through a training process defined by a government agency, such as the Department of Veterans Affairs or a state mental health department/certification/licensing authority.

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)
1171400000XOther Service Providers

Health and Wellness Coach

Q474292783 (DE)
2376K00000XNursing Service Related Providers

Nurse's Aide

 

Group Taxonomy 193200000X MULTI-SPECIALTY GROUP

This provider is a business group of one or more individual practitioners, who practice with different areas of specialization.

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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 1770462491, 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
7
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
0
Unchanged
Pos 5
4
Doubled → 8
Pos 6
6
Unchanged
Pos 7
2
Doubled → 4
Pos 8
4
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
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 7 → 14 → 5 4 → 8 2 → 4 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 4 + 0 + 8 + 6 + 4 + 4 + 1 + 8 + 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 1770462491.

Other Providers at the Same Location


The following 20 providers are registered at the same or a nearby location.

Chronic Disease Hospital
8 THE GRN STE A
DOVER, DE 19901
Durable Medical Equipment & Medical Supplies (Dialysis Equipment & Supplies)
8 THE GRN STE A
DOVER, DE 19901
Social Worker (Clinical)
8 THE GRN STE A
DOVER, DE 19901
Behavior Analyst
8 THE GRN STE A
DOVER, DE 19901
Home Health
8 THE GRN STE A
DOVER, DE 19901
Social Worker (Clinical)
8 THE GRN STE A
DOVER, DE 19901
Physical Therapist
8 THE GRN STE A
DOVER, DE 19901
Nursing Care
8 THE GRN STE A
DOVER, DE 19901
Dermatology (MOHS-Micrographic Surgery)
8 THE GRN STE A
DOVER, DE 19901
Counselor (Mental Health)
8 THE GRN STE A
DOVER, DE 19901
Non-emergency Medical Transport (VAN)
8 THE GRN STE A
DOVER, DE 19901
Nurse Practitioner (Psychiatric/Mental Health)
8 THE GRN STE A
DOVER, DE 19901
Counselor (Mental Health)
8 THE GRN STE A
DOVER, DE 19901
Social Worker (Clinical)
8 THE GRN STE A
DOVER, DE 19901
Nurse Practitioner (Psychiatric/Mental Health)
8 THE GRN STE A
DOVER, DE 19901
Assisted Living Facility
8 THE GRN STE A
DOVER, DE 19901
Emergency Medicine
8 THE GRN STE A
DOVER, DE 19901
Specialist
8 THE GRN STE A
DOVER, DE 19901
Behavior Analyst
8 THE GRN STE A
DOVER, DE 19901
Case Management
8 THE GRN STE A
DOVER, DE 19901

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1770462491, enumerated as an "individual" on August 27, 2025.

The provider is located at 8 THE GRN STE A DOVER, DE 19901 and the phone number is (302) 563-7318.

Peer Specialist with taxonomy code 175T00000X.