JULIANNE ALONSO FNP-C
NPI 1649138629
Nurse Practitioner in Stafford, VA

NPI Status: Active since January 09, 2026

Contact Information

422 GARRISONVILLE RD
STAFFORD, VA
ZIP 22554
Phone: (540) 706-7203

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  • Individual
  • Female
  • Nurse Practitioner

About JULIANNE ALONSO

This page provides the complete NPI Profile along with additional information for Julianne Alonso, a provider established in Stafford, Virginia with a medical specialization in Nurse Practitioner. The healthcare provider is registered in the NPI registry with number 1649138629 assigned on January 2026. The practitioner's primary taxonomy code is 363L00000X with license number 0024196363 (VA). The provider is registered as an individual and her NPI record was last updated March 2026.

NPI
1649138629
Provider Name
JULIANNE ALONSO FNP-C
Gender
Female
Entity Type
Individual
Location Address
422 GARRISONVILLE RD STAFFORD, VA 22554
Location Phone
(540) 706-7203
Mailing Address
422 GARRISONVILLE RD STAFFORD, VA 22554
Mailing Phone
(540) 720-8000
Is Sole Proprietor?
No
Enumeration Date
01-09-2026
Last Update Date
03-26-2026
Code Navigator

A nurse practitioner (NP) like Julianne Alonso 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

Taxonomy Code
363L00000X
Type
Physician Assistants & Advanced Practice Nursing Providers
License No.
0024196363
License State
VA
Taxonomy Description
(1) A registered nurse provider with a graduate degree in nursing prepared for advanced practice involving independent and interdependent decision making and direct accountability for clinical judgment across the health care continuum or in a certified specialty. (2) A registered nurse who has completed additional training beyond basic nursing education and who provides primary health care services in accordance with state nurse practice laws or statutes. Tasks performed by nurse practitioners vary with practice requirements mandated by geographic, political, economic, and social factors. Nurse practitioner specialists include, but are not limited to, family nurse practitioners, gerontological nurse practitioners, pediatric nurse practitioners, obstetric-gynecologic nurse practitioners, and school nurse practitioners.

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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 1649138629, we treat the final digit (9) 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 71. The final step is to find the difference between that total and the next multiple of ten (80 - 71 = 9).

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

Step 2: Add all digits plus the NPI constant

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

2 + 6 + 8 + 9 + 2 + 3 + 1 + 6 + 6 + 4 + 24 = 71

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

The next multiple of ten after 71 is 80. The difference is the calculated check digit.

80 - 71 = 9
This NPI is valid
The calculated check digit is 9, which matches the last digit of 1649138629.

Other Providers at the Same Location


The following 18 providers are registered at the same or a nearby location.

Family Medicine
422 GARRISONVILLE RD, STE 111
STAFFORD, VA 22554
Physician Assistant
422 GARRISONVILLE RD, SUITE 111
STAFFORD, VA 22554
Pediatrics
422 GARRISONVILLE RD, SUITE 101
STAFFORD, VA 22554
Pediatrics
422 GARRISONVILLE RD, SUITE 101
STAFFORD, VA 22554
Pediatrics
422 GARRISONVILLE RD, SUITE 101
STAFFORD, VA 22554
Family Medicine
422 GARRISONVILLE RD, SUITE 102
STAFFORD, VA 22554
Internal Medicine
422 GARRISONVILLE RD, SUITE 108
STAFFORD, VA 22554
Physician Assistant
422 GARRISONVILLE RD, SUITE 111
STAFFORD, VA 22554
Physical Therapist
422 GARRISONVILLE RD
STAFFORD, VA 22554
Internal Medicine
422 GARRISONVILLE RD
STAFFORD, VA 22554
Community/Behavioral Health
422 GARRISONVILLE RD, SUITE 107
STAFFORD, VA 22554
Physician Assistant
422 GARRISONVILLE RD, STE 111
STAFFORD, VA 22554
Nurse Practitioner (Family)
422 GARRISONVILLE RD, SUITE 101
STAFFORD, VA 22554
Clinic/Center (Urgent Care)
422 GARRISONVILLE RD, STE. 111
STAFFORD, VA 22554
Specialist
422 GARRISONVILLE RD, SUITE 111
STAFFORD, VA 22554
Internal Medicine
422 GARRISONVILLE RD, SUITE 108
STAFFORD, VA 22554
Nurse Practitioner (Family)
422 GARRISONVILLE RD, SUITE 101
STAFFORD, VA 22554
Nurse Practitioner (Family)
422 GARRISONVILLE RD, SUITE 101
STAFFORD, VA 22554

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1649138629, enumerated as an "individual" on January 09, 2026.

The provider is located at 422 GARRISONVILLE RD STAFFORD, VA 22554 and the phone number is (540) 706-7203.

Nurse Practitioner with taxonomy code 363L00000X.