PAUL A LIGUORI MD
NPI 1801769401
Physical Medicine & Rehabilitation in Haverhill, MA

NPI Status: Active since September 29, 2025

Contact Information

145 WARD HILL AVE
HAVERHILL, MA
ZIP 01835
Phone: (978) 372-8000
Fax: (978) 374-4423

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  • Organization
  • Physical Medicine & Rehabilitation

About PAUL A LIGUORI MD

This page provides the complete NPI Profile along with additional information for Paul A Liguori Md, a provider established in Haverhill, Massachusetts operating as a Physical Medicine & Rehabilitation. The healthcare provider is registered in the NPI registry with number 1801769401 assigned on September 2025. The practitioner's primary taxonomy code is 208100000X. The provider is registered as an organization and their NPI record was last updated one year ago. The organization operates as a Single Specialty Group with one or more individual practitioners, all of who practice with the same area of specialization. The authorized official of this NPI record is Paul Liguori Md (Md)

NPI
1801769401
Provider Name
PAUL A LIGUORI MD
Entity Type
Organization
Location Address
145 WARD HILL AVE HAVERHILL, MA 01835
Location Phone
(978) 372-8000
Location Fax
(978) 374-4423
Mailing Address
5 CHURCHILL CT WESTFORD, MA 01886
Is Sole Proprietor?
No
Is Organization Subpart?
No
Enumeration Date
09-29-2025
Last Update Date
09-29-2025
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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
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.

Group Taxonomy 193400000X SINGLE SPECIALTY GROUP

This provdier is a business group of one or more individual practitioners, all of who practice with the same area of specialization.

Authorized Official

The authorized official is the designated individual with the legal authority to make changes to the provider’s official NPI record. For organizations, the authorized official must be a general partner, chairman of the board, CEO, CFO or a direct owner holding at least a 5 percent stake in the medical organization.

Authorized Official Name

PAUL LIGUORI MD

Authorized Official Title
MD
Authorized Official Phone
(978) 372-8000

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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 1801769401, 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 59. The final step is to find the difference between that total and the next multiple of ten (60 - 59 = 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
0
Doubled → 0
Pos 4
1
Unchanged
Pos 5
7
Doubled → 14 → 1 + 4
Pos 6
6
Unchanged
Pos 7
9
Doubled → 18 → 1 + 8
Pos 8
4
Unchanged
Pos 9
0
Doubled → 0
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 0 → 0 7 → 14 → 5 9 → 18 → 9 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 8 + 0 + 1 + 1 + 4 + 6 + 1 + 8 + 4 + 0 + 24 = 59

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

The next multiple of ten after 59 is 60. The difference is the calculated check digit.

60 - 59 = 1
This NPI is valid
The calculated check digit is 1, which matches the last digit of 1801769401.

Other Providers at the Same Location


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

Internal Medicine
145 WARD HILL AVE
HAVERHILL, MA 01835
Psychiatry & Neurology (Neurology)
145 WARD HILL AVE, WHITTIER REHABILITATION HOSPITAL
BRADFORD, MA 01835
Pharmacy (Long Term Care Pharmacy)
145 WARD HILL AVE
BRADFORD, MA 01835
Home Health
145 WARD HILL AVE
BRADFORD, MA 01835
Legal Medicine
145 WARD HILL AVE
BRADFORD, MA 01835
Nurse Practitioner (Adult Health)
145 WARD HILL AVE
BRADFORD, MA 01835
Massage Therapist
145 WARD HILL AVE
BRADFORD, MA 01835
Internal Medicine
145 WARD HILL AVE
BRADFORD, MA 01835
Skilled Nursing Facility
145 WARD HILL AVE
BRADFORD, MA 01835
Pharmacy (Institutional Pharmacy)
145 WARD HILL AVE
BRADFORD, MA 01835
Nurse Practitioner (Acute Care)
145 WARD HILL AVE
BRADFORD, MA 01835
Nurse Practitioner (Gerontology)
145 WARD HILL AVE
BRADFORD, MA 01835
Nurse Practitioner
145 WARD HILL AVE
HAVERHILL, MA 01835
Occupational Therapist
145 WARD HILL AVE
HAVERHILL, MA 01835
Physical Therapist
145 WARD HILL AVE
HAVERHILL, MA 01835
Physical Medicine & Rehabilitation
145 WARD HILL AVE
BRADFORD, MA 01835
Long Term Care Hospital
145 WARD HILL AVE
BRADFORD, MA 01835
Rehabilitation Unit
145 WARD HILL AVE
BRADFORD, MA 01835
Physical Therapist
145 WARD HILL AVE
BRADFORD, MA 01835
Family Medicine
145 WARD HILL AVE
BRADFORD, MA 01835

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1801769401, enumerated as an "organization" on September 29, 2025.

The provider is located at 145 WARD HILL AVE HAVERHILL, MA 01835 and the phone number is (978) 372-8000.

Physical Medicine & Rehabilitation with taxonomy code 208100000X.