MS. DORCINE GERALDINE MARSHALL AGPCNP-C
NPI 1336093582
Nurse Practitioner - Adult Health in Brooklyn, NY

NPI Status: Active since February 24, 2026

Contact Information

225 E 88TH ST
GRND FLR
BROOKLYN, NY
ZIP 11236
Phone: (347) 303-5017

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  • Individual
  • Female
  • Nurse Practitioner
  • Adult Health

About DORCINE MARSHALL

This page provides the complete NPI Profile along with additional information for Dorcine Marshall, a provider established in Brooklyn, New York with a medical specialization in Nurse Practitioner, focusing in adult health . The healthcare provider is registered in the NPI registry with number 1336093582 assigned on February 2026. The practitioner's primary taxonomy code is 363LA2200X with license number 312430 (NY). The provider is registered as an individual and her NPI record was last updated February 2026.

NPI
1336093582
Provider Name
MS. DORCINE GERALDINE MARSHALL AGPCNP-C
Gender
Female
Entity Type
Individual
Location Address
225 E 88TH ST GRND FLR BROOKLYN, NY 11236
Location Phone
(347) 303-5017
Mailing Address
225 E 88TH ST BROOKLYN, NY 11236
Mailing Phone
(347) 303-5017
Is Sole Proprietor?
Yes
Enumeration Date
02-24-2026
Last Update Date
02-24-2026
Code Navigator

A nurse practitioner (NP) like Dorcine Marshall 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 Adult Health

Taxonomy Code
363LA2200X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
312430
License State
NY

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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 1336093582, we treat the final digit (2) 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 68. The final step is to find the difference between that total and the next multiple of ten (70 - 68 = 2).

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

Step 2: Add all digits plus the NPI constant

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

2 + 3 + 6 + 6 + 0 + 9 + 6 + 5 + 1 + 6 + 24 = 68

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

The next multiple of ten after 68 is 70. The difference is the calculated check digit.

70 - 68 = 2
This NPI is valid
The calculated check digit is 2, which matches the last digit of 1336093582.

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1336093582, enumerated as an "individual" on February 24, 2026.

The provider is located at 225 E 88TH ST GRND FLR BROOKLYN, NY 11236 and the phone number is (347) 303-5017.

Nurse Practitioner with taxonomy code 363LA2200X and a focus in Adult Health.