Individual provider

Jennifer Alger, NP

Family Nurse Practitioner Medicare enrolled

Jennifer Alger, NP is a Family Nurse Practitioner in Woodbridge, VA, registered under NPI 1558193102. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.

Getting there

The practice address on file is 2079 DANIEL STUART SQ, Woodbridge, VA 22191. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

2079 DANIEL STUART SQ, Woodbridge, VA 22191 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
0024190849 VA Family Nurse Practitioner primary

This provider holds licence 0024190849 issued in VA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)
Status
Approved
Provider type
Practitioner - Nurse Practitioner
PAC ID
3274054440

Enrolled in Medicare 2 times, across 2 states:

StateEnrollment IDProvider type
Virginia I20250304002015 Practitioner - Nurse Practitioner
Washington I20260122001521 Practitioner - Nurse Practitioner

Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. There are 2 separate enrolment records across 2 states (VA, WA). Multiple enrolments usually mean the provider bills Medicare from more than one practice location, or has kept an earlier enrolment after moving. Each record carries its own enrolment ID, listed above. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.

What Family covers

Definition to come... NUCC Health Care Provider Taxonomy, code 363LF0000X
Physician Assistants & Advanced Practice Nursing Providers Nurse Practitioner Family

The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.

Full NPPES record

An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.

NPI1558193102 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateAug 14, 2024
Last updatedApr 14, 2025
StatusActive
Sole proprietorYes
CredentialNP
Practice address 2079 DANIEL STUART SQ
Woodbridge, VA 22191
(425) 232-0793
This record was updated on Apr 14, 2025, which is recent enough that the contact details are likely still accurate.

Number check

1558193102 passes the NPI check digit test The final digit 2 matches the value computed from the first nine digits, so this is a well-formed NPI.
How the check works, step by step

Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.

Digit 8 0 8 4 0 1 5 5 8 1 9 3 1 0
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 5 1 8 2 9 6 1 0

Sum = 58 · next multiple of 10 = 60 · check digit = 2 · actual last digit = 2

A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.

Common questions

What is NPI number 1558193102?
NPI 1558193102 is the National Provider Identifier assigned to Jennifer Alger, NP in Woodbridge, VA. It is a 10-digit number issued by the Centers for Medicare & Medicaid Services and used on claims, referrals, and prescriptions to identify the provider.
What does Family cover?
Definition to come...
How do I contact Jennifer Alger, NP?
The phone number on file with NPPES is (425) 232-0793, last updated Apr 14, 2025. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Does Jennifer Alger, NP accept Medicare?
This NPI has an approved Medicare enrolment in PECOS, which means the provider is enrolled to bill Medicare. Enrolment does not guarantee they are accepting new Medicare patients — verify directly with the office.
Is NPI 1558193102 a valid number?
Yes. 1558193102 passes the Luhn check digit validation that CMS uses for NPI numbers, and it resolves to an active record in the registry.
How to use this page. Everything here comes from public federal records. Tips Health does not verify quality of care, confirm that a licence is currently active, or check malpractice history, and accepts no fees for placement. A listing is not a recommendation. Verify independently before seeking care.