MR. DONALD HENRY GRENIER JR. MSN, PMHNP
NPI 1932980133
Nurse Practitioner - Psychiatric/Mental Health in Manchester, VT

NPI Status: Active since October 12, 2023

Contact Information

4384 MAIN STREET
MANCHESTER, VT
ZIP 05254
Phone: (802) 768-9136

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

About DONALD GRENIER

This page provides the complete NPI Profile along with additional information for Donald Grenier, a provider established in Manchester, Vermont with a medical specialization in Nurse Practitioner, focusing in psychiatric/mental health . The healthcare provider is registered in the NPI registry with number 1932980133 assigned on October 2023. The practitioner's primary taxonomy code is 363LP0808X with license number 101.0136632 (VT). The provider is registered as an individual and his NPI record was last updated 3 years ago.

NPI
1932980133
Provider Name
MR. DONALD HENRY GRENIER JR. MSN, PMHNP
Gender
Male
Entity Type
Individual
Location Address
4384 MAIN STREET MANCHESTER, VT 05254
Location Phone
(802) 768-9136
Mailing Address
PO BOX 224 MOUNT HOLLY, VT 05758
Is Sole Proprietor?
Yes
Enumeration Date
10-12-2023
Last Update Date
10-12-2023
Code Navigator

A nurse practitioner (NP) like Donald Grenier 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.
101.0136632
License State
VT

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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 1932980133, we treat the final digit (3) 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 67. The final step is to find the difference between that total and the next multiple of ten (70 - 67 = 3).

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

Step 2: Add all digits plus the NPI constant

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

2 + 9 + 6 + 2 + 1 + 8 + 8 + 0 + 1 + 6 + 24 = 67

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

The next multiple of ten after 67 is 70. The difference is the calculated check digit.

70 - 67 = 3
This NPI is valid
The calculated check digit is 3, which matches the last digit of 1932980133.

Other Providers at the Same Location


The following 3 providers are registered at the same or a nearby location.

Psychiatry & Neurology (Psychiatry)
4384 MAIN STREET
MANCHESTER, VT 05254
Psychiatry & Neurology (Psychiatry)
4384 MAIN STREET
MANCHESTER, VT 05254
Nurse Practitioner (Pediatrics)
4384 MAIN STREET
MANCHESTER, VT 05254

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1932980133, enumerated as an "individual" on October 12, 2023.

The provider is located at 4384 MAIN STREET MANCHESTER, VT 05254 and the phone number is (802) 768-9136.

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