RACHEL BLACKSTONE APRN, PMHNP-BC
NPI 1386536308
Nurse Practitioner - Psychiatric/Mental Health in Norwich, CT

NPI Status: Active since July 15, 2025

Contact Information

108 NEW LONDON TURNPIKE
NORWICH, CT
ZIP 06360
Phone: (860) 889-3052

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

About RACHEL BLACKSTONE

This page provides the complete NPI Profile along with additional information for Rachel Blackstone, a provider established in Norwich, Connecticut with a medical specialization in Nurse Practitioner, focusing in psychiatric/mental health . The healthcare provider is registered in the NPI registry with number 1386536308 assigned on July 2025. The practitioner's primary taxonomy code is 363LP0808X with license number 14786 (CT). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1386536308
Provider Name
RACHEL BLACKSTONE APRN, PMHNP-BC
Gender
Female
Entity Type
Individual
Location Address
108 NEW LONDON TURNPIKE NORWICH, CT 06360
Location Phone
(860) 889-3052
Mailing Address
35 HALE HAVEN COURT UNCASVILLE, CT 06382
Mailing Phone
(860) 941-8845
Is Sole Proprietor?
No
Enumeration Date
07-15-2025
Last Update Date
07-15-2025
Code Navigator

A nurse practitioner (NP) like Rachel Blackstone 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.
14786
License State
CT

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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 1386536308, we treat the final digit (8) 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 52. The final step is to find the difference between that total and the next multiple of ten (60 - 52 = 8).

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
3
Unchanged
Pos 3
8
Doubled → 16 → 1 + 6
Pos 4
6
Unchanged
Pos 5
5
Doubled → 10 → 1 + 0
Pos 6
3
Unchanged
Pos 7
6
Doubled → 12 → 1 + 2
Pos 8
3
Unchanged
Pos 9
0
Doubled → 0
Check
8
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 8 → 16 → 7 5 → 10 → 1 6 → 12 → 3 0 → 0

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 1 + 6 + 6 + 1 + 0 + 3 + 1 + 2 + 3 + 0 + 24 = 52

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

The next multiple of ten after 52 is 60. The difference is the calculated check digit.

60 - 52 = 8
This NPI is valid
The calculated check digit is 8, which matches the last digit of 1386536308.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1386536308, enumerated as an "individual" on July 15, 2025.

The provider is located at 108 NEW LONDON TURNPIKE NORWICH, CT 06360 and the phone number is (860) 889-3052.

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