MRS. ANGELA MARIE BYRNES APRN
NPI 1679455794
Nurse Practitioner - Psychiatric/Mental Health in Crystal Lake, IL

NPI Status: Active since July 21, 2025

Contact Information

2602 IL ROUTE 176
CRYSTAL LAKE, IL
ZIP 60014
Phone: (815) 261-3450

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

About ANGELA BYRNES

This page provides the complete NPI Profile along with additional information for Angela Byrnes, a provider established in Crystal Lake, Illinois with a medical specialization in Nurse Practitioner, focusing in psychiatric/mental health . The healthcare provider is registered in the NPI registry with number 1679455794 assigned on July 2025. The practitioner's primary taxonomy code is 363LP0808X with license number 309.023536 (IL). The provider is registered as an individual and her NPI record was last updated one year ago.

NPI
1679455794
Provider Name
MRS. ANGELA MARIE BYRNES APRN
Gender
Female
Entity Type
Individual
Location Address
2602 IL ROUTE 176 CRYSTAL LAKE, IL 60014
Location Phone
(815) 261-3450
Mailing Address
620 N IL ROUTE 31 CRYSTAL LAKE, IL 60012
Mailing Phone
(815) 261-3450
Is Sole Proprietor?
No
Enumeration Date
07-21-2025
Last Update Date
07-21-2025
Code Navigator

A nurse practitioner (NP) like Angela Byrnes 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.
309.023536
License State
IL

Secondary Taxonomies

The provider has reported to the NPI enumerator additional taxonomy codes. Multiple taxonomy codes may represent subspecialties or other areas of specialization the provider maybe licensed to practice.

No. Taxonomy Code Type Classification /
Specialization
License No. (State)
1363LP0808XPhysician Assistants & Advanced Practice Nursing Providers

Nurse Practitioner
Psychiatric/Mental Health

209.032783 (IL)

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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 1679455794, we treat the final digit (4) 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 76. The final step is to find the difference between that total and the next multiple of ten (80 - 76 = 4).

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
6
Unchanged
Pos 3
7
Doubled → 14 → 1 + 4
Pos 4
9
Unchanged
Pos 5
4
Doubled → 8
Pos 6
5
Unchanged
Pos 7
5
Doubled → 10 → 1 + 0
Pos 8
7
Unchanged
Pos 9
9
Doubled → 18 → 1 + 8
Check
4
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 7 → 14 → 5 4 → 8 5 → 10 → 1 9 → 18 → 9

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 1 + 4 + 9 + 8 + 5 + 1 + 0 + 7 + 1 + 8 + 24 = 76

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

The next multiple of ten after 76 is 80. The difference is the calculated check digit.

80 - 76 = 4
This NPI is valid
The calculated check digit is 4, which matches the last digit of 1679455794.

Other Providers at the Same Location


The following 1 provider is registered at the same or a nearby location.

Substance Abuse Rehabilitation Facility
2602 IL ROUTE 176
CRYSTAL LAKE, IL 60014

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1679455794, enumerated as an "individual" on July 21, 2025.

The provider is located at 2602 IL ROUTE 176 CRYSTAL LAKE, IL 60014 and the phone number is (815) 261-3450.

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