DR. JENNIFER WILLIAMS PT, DPT, CLT-LANA
NPI 1871428441
Physical Medicine & Rehabilitation in Portsmouth, NH

NPI Status: Active since June 16, 2026

Contact Information

105 CORPORATE DR
PORTSMOUTH, NH
ZIP 03801
Phone: (603) 501-5500

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  • Individual
  • Female
  • Physical Medicine & Rehabilitation

About JENNIFER WILLIAMS

This page provides the complete NPI Profile along with additional information for Jennifer Williams, a provider established in Portsmouth, New Hampshire with a medical specialization in Physical Medicine & Rehabilitation. The healthcare provider is registered in the NPI registry with number 1871428441 assigned on June 2026. The practitioner's primary taxonomy code is 208100000X with license number PTL18642 (MA). The provider is registered as an individual and her NPI record was last updated June 2026.

NPI
1871428441
Provider Name
DR. JENNIFER WILLIAMS PT, DPT, CLT-LANA
Gender
Female
Entity Type
Individual
Location Address
105 CORPORATE DR PORTSMOUTH, NH 03801
Location Phone
(603) 501-5500
Mailing Address
120 WINTER ST CLINTON, MA 01510
Is Sole Proprietor?
No
Enumeration Date
06-16-2026
Last Update Date
06-16-2026
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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

Physical Medicine & Rehabilitation

Taxonomy Code
208100000X
Type
Allopathic & Osteopathic Physicians
License No.
PTL18642
License State
MA
Taxonomy Description
Physical medicine and rehabilitation, also referred to as rehabilitation medicine, is the medical specialty concerned with diagnosing, evaluating, and treating patients with physical disabilities. These disabilities may arise from conditions affecting the musculoskeletal system such as neck and back pain, sports injuries, or other painful conditions affecting the limbs, such as carpal tunnel syndrome. Alternatively, the disabilities may result from neurological trauma or disease such as spinal cord injury, head injury or stroke. A physician certified in physical medicine and rehabilitation is often called a physiatrist. The primary goal of the physiatrist is to achieve maximal restoration of physical, psychological, social and vocational function through comprehensive rehabilitation. Pain management is often an important part of the role of the physiatrist. For diagnosis and evaluation, a physiatrist may include the techniques of electromyography to supplement the standard history, physical, x-ray and laboratory examinations. The physiatrist has expertise in the appropriate use of therapeutic exercise, prosthetics (artificial limbs), orthotics and mechanical and electrical devices.

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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 1871428441, 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
8
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
1
Unchanged
Pos 5
4
Doubled → 8
Pos 6
2
Unchanged
Pos 7
8
Doubled → 16 → 1 + 6
Pos 8
4
Unchanged
Pos 9
4
Doubled → 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 8 → 16 → 7 4 → 8

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 1 + 4 + 1 + 8 + 2 + 1 + 6 + 4 + 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 1871428441.

Other Providers at the Same Location


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

Physical Medicine & Rehabilitation
105 CORPORATE DR, PEASE INTERNATIONAL TRADEPORT
PORTSMOUTH, NH 03801
Occupational Therapist
105 CORPORATE DR
PORTSMOUTH, NH 03801
Occupational Therapist
105 CORPORATE DR
PORTSMOUTH, NH 03801
Speech-Language Pathologist
105 CORPORATE DR
PORTSMOUTH, NH 03801
Occupational Therapist
105 CORPORATE DR
PORTSMOUTH, NH 03801
Physical Therapist
105 CORPORATE DR
PORTSMOUTH, NH 03801
Occupational Therapist
105 CORPORATE DR
PORTSMOUTH, NH 03801
Physical Therapist
105 CORPORATE DR
PORTSMOUTH, NH 03801
Physical Therapist
105 CORPORATE DR
PORTSMOUTH, NH 03801
Occupational Therapist (Physical Rehabilitation)
105 CORPORATE DR
PORTSMOUTH, NH 03801
Physical Therapist
105 CORPORATE DR
PORTSMOUTH, NH 03801
Physical Therapist
105 CORPORATE DR
PORTSMOUTH, NH 03801
Physical Therapist
105 CORPORATE DR
PORTSMOUTH, NH 03801
Speech-Language Pathologist
105 CORPORATE DR
PORTSMOUTH, NH 03801
Speech-Language Pathologist
105 CORPORATE DR
PORTSMOUTH, NH 03801
Occupational Therapist
105 CORPORATE DR
PORTSMOUTH, NH 03801
Physical Therapist
105 CORPORATE DR
PORTSMOUTH, NH 03801
Occupational Therapist
105 CORPORATE DR
PORTSMOUTH, NH 03801
Physical Therapist
105 CORPORATE DR
PORTSMOUTH, NH 03801
Specialist
105 CORPORATE DR
PORTSMOUTH, NH 03801

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1871428441, enumerated as an "individual" on June 16, 2026.

The provider is located at 105 CORPORATE DR PORTSMOUTH, NH 03801 and the phone number is (603) 501-5500.

Physical Medicine & Rehabilitation with taxonomy code 208100000X.