ALICE SPEAK
NPI 1639943012
Nurse Practitioner - Critical Care Medicine in Grand Junction, CO

NPI Status: Active since November 07, 2023

Contact Information

2635 N 7TH ST
GRAND JUNCTION, CO
ZIP 81501
Phone: (435) 962-0468

NPI Profile Information
Primary Taxonomy
NPI Validation
Other Providers Same Location
Frequently Asked Questions

Individual
Female
Nurse Practitioner
Critical Care Medicine

About ALICE SPEAK

This page provides the complete NPI Profile along with additional information for Alice Speak, a provider established in Grand Junction, Colorado with a medical specialization in Nurse Practitioner, focusing in critical care medicine . The healthcare provider is registered in the NPI registry with number 1639943012 assigned on November 2023. The practitioner's primary taxonomy code is 363LC0200X with license number 8640187-4405 (UT). The provider is registered as an individual and her NPI record was last updated January 2026.

NPI: 1639943012
Provider Name: ALICE SPEAK
Gender: Female
Entity Type: Individual
Location Address: 2635 N 7TH ST GRAND JUNCTION, CO 81501
Location Phone: (435) 962-0468
Mailing Address: 2440 N 11TH ST GRAND JUNCTION, CO 81501
Mailing Phone: (435) 962-0468
Is Sole Proprietor?: No
Enumeration Date: 11-07-2023
Last Update Date: 01-23-2026
Code Navigator

A nurse practitioner (NP) like Alice Speak 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 Critical Care Medicine
Taxonomy Code: 363LC0200X
Type: Physician Assistants & Advanced Practice Nursing Providers
License No.: 8640187-4405
License State: UT

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 1639943012, 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

Doubled → 2

Pos 2

Unchanged

Pos 3

Doubled → 6

Pos 4

Unchanged

Pos 5

Doubled → 18 → 1 + 8

Pos 6

Unchanged

Pos 7

Doubled → 6

Pos 8

Unchanged

Pos 9

Doubled → 2

Check

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 3 → 6 1 → 2

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 6 + 9 + 1 + 8 + 4 + 6 + 0 + 2 + 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 1639943012.