DONNA LYNCH PMHNP
NPI 1790645166
Nurse Practitioner - Psychiatric/Mental Health in Weymouth, MA

NPI Status: Active since November 17, 2025

Contact Information

169 LIBBEY INDUSTRIAL PKWY
WEYMOUTH, MA
ZIP 02189
Phone: (781) 551-0999

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  • Individual
  • Female
  • Nurse Practitioner
  • Psychiatric/Mental Health

About DONNA LYNCH

This page provides the complete NPI Profile along with additional information for Donna Lynch, a provider established in Weymouth, Massachusetts with a medical specialization in Nurse Practitioner, focusing in psychiatric/mental health . The healthcare provider is registered in the NPI registry with number 1790645166 assigned on November 2025. The practitioner's primary taxonomy code is 363LP0808X with license number RN2276017 (MA). The provider is registered as an individual and her NPI record was last updated January 2026.

NPI
1790645166
Provider Name
DONNA LYNCH PMHNP
Gender
Female
Entity Type
Individual
Location Address
169 LIBBEY INDUSTRIAL PKWY WEYMOUTH, MA 02189
Location Phone
(781) 551-0999
Mailing Address
169 LIBBEY INDUSTRIAL PKWY WEYMOUTH, MA 02189
Mailing Phone
(781) 551-0999
Is Sole Proprietor?
Yes
Enumeration Date
11-17-2025
Last Update Date
01-27-2026
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A nurse practitioner (NP) like Donna Lynch is an experienced registered nurse with a master’s or doctoral degree and advanced clinical training. Nurse practitioners can work in many different specialties including primary care, pediatrics, cardiology, emergency, women’s health, oncology or geriatrics. Nurse practitioners provide services like physical exams, order laboratory tests, manage diseases, write prescriptions, etc.

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

Nurse Practitioner Psychiatric/Mental Health

Taxonomy Code
363LP0808X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
RN2276017
License State
MA

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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 1790645166, 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 54. The final step is to find the difference between that total and the next multiple of ten (60 - 54 = 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
7
Unchanged
Pos 3
9
Doubled → 18 → 1 + 8
Pos 4
0
Unchanged
Pos 5
6
Doubled → 12 → 1 + 2
Pos 6
4
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
1
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 6 → 12 → 3 5 → 10 → 1 6 → 12 → 3

Step 2: Add all digits plus the NPI constant

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

2 + 7 + 1 + 8 + 0 + 1 + 2 + 4 + 1 + 0 + 1 + 1 + 2 + 24 = 54

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

The next multiple of ten after 54 is 60. The difference is the calculated check digit.

60 - 54 = 6
This NPI is valid
The calculated check digit is 6, which matches the last digit of 1790645166.

Other Providers at the Same Location


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

Psychologist (Clinical)
169 LIBBEY INDUSTRIAL PKWY, 2ND FLOOR
WEYMOUTH, MA 02189
Psychologist (Clinical)
169 LIBBEY INDUSTRIAL PKWY, 2ND FLOOR
WEYMOUTH, MA 02189
Social Worker (Clinical)
169 LIBBEY INDUSTRIAL PKWY, 2ND FLOOR
WEYMOUTH, MA 02189
Psychologist (Health Service)
169 LIBBEY INDUSTRIAL PKWY, 2ND FLOOR
WEYMOUTH, MA 02189
Psychologist (Clinical)
169 LIBBEY INDUSTRIAL PKWY, 2ND FLOOR
WEYMOUTH, MA 02189
Clinical Nurse Specialist (Psychiatric/Mental Health)
169 LIBBEY INDUSTRIAL PKWY, 2ND FLOOR
WEYMOUTH, MA 02189
Clinical Neuropsychologist
169 LIBBEY INDUSTRIAL PKWY, 2ND FLOOR
WEYMOUTH, MA 02189
Clinical Nurse Specialist (Psychiatric/Mental Health, Geropsychiatric)
169 LIBBEY INDUSTRIAL PKWY, 2ND FLOOR
WEYMOUTH, MA 02189
Social Worker (Clinical)
169 LIBBEY INDUSTRIAL PKWY, 2ND FLOOR
WEYMOUTH, MA 02189
Psychologist (Counseling)
169 LIBBEY INDUSTRIAL PKWY, 2ND FLOOR
WEYMOUTH, MA 02189
Counselor (Mental Health)
169 LIBBEY INDUSTRIAL PKWY, 2ND FLOOR
WEYMOUTH, MA 02189
Psychologist (Clinical Child & Adolescent)
169 LIBBEY INDUSTRIAL PKWY
WEYMOUTH, MA 02189
Psychiatry & Neurology (Psychiatry)
169 LIBBEY INDUSTRIAL PKWY, 2ND FLOOR
WEYMOUTH, MA 02189
Psychiatry & Neurology (Psychiatry)
169 LIBBEY INDUSTRIAL PKWY, 2ND FLOOR
WEYMOUTH, MA 02189
Psychologist
169 LIBBEY INDUSTRIAL PKWY, 2ND FLOOR
WEYMOUTH, MA 02189
Psychologist
169 LIBBEY INDUSTRIAL PKWY, SECOND FLOOR
WEYMOUTH, MA 02189
Psychologist
169 LIBBEY INDUSTRIAL PKWY, 2ND FLOOR
WEYMOUTH, MA 02189
Counselor (Mental Health)
169 LIBBEY INDUSTRIAL PKWY, 2ND FLOOR
WEYMOUTH, MA 02189
Social Worker (Clinical)
169 LIBBEY INDUSTRIAL PKWY, SECOND FLOOR
WEYMOUTH, MA 02189
Psychologist (Clinical)
169 LIBBEY INDUSTRIAL PKWY
WEYMOUTH, MA 02189

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1790645166, enumerated as an "individual" on November 17, 2025.

The provider is located at 169 LIBBEY INDUSTRIAL PKWY WEYMOUTH, MA 02189 and the phone number is (781) 551-0999.

Nurse Practitioner with taxonomy code 363LP0808X and a focus in Psychiatric/Mental Health.