Individual provider

Caroline Seiler, ARNP

Nurse Practitioner Registered Nurse Family Nurse Practitioner

Caroline Seiler, ARNP is a Nurse Practitioner in Seattle, WA, registered under NPI 1144734328. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.

Getting there

The practice address on file is 747 BROADWAY, Seattle, WA 98122. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

747 BROADWAY, Seattle, WA 98122 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
AP30005773 WA Nurse Practitioner primary
RN00130179 WA Registered Nurse
AP30005773 WA Family Nurse Practitioner

This provider holds licence AP30005773 issued in WA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.

Medicare (PECOS)

This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.

What Nurse Practitioner covers

(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. NUCC Health Care Provider Taxonomy, code 363L00000X
Physician Assistants & Advanced Practice Nursing Providers Nurse Practitioner

All registered taxonomy codes

This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
363L00000X Nurse Practitioner AP30005773 WA primary
163W00000X Registered Nurse RN00130179 WA
363LF0000X Family Nurse Practitioner Family AP30005773 WA

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.

NPI1144734328 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateNov 27, 2017
Last updatedMar 22, 2021
StatusActive
Sole proprietorNo
CredentialARNP
Practice address 747 BROADWAY
Seattle, WA 98122
(206) 215-2520
Fax (206) 215-6364
Mailing address PO BOX 25608
Salt Lake City, UT 84125
The last update on file is Mar 22, 2021. Providers are only required to update NPPES when their information changes, so an older date does not necessarily mean the details are wrong — but it is worth a quick call before you travel.

Number check

1144734328 passes the NPI check digit test The final digit 8 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 1 4 4 7 3 4 3 2
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 1 8 4 5 3 8 3 4

Sum = 62 · next multiple of 10 = 70 · check digit = 8 · actual last digit = 8

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 1144734328?
NPI 1144734328 is the National Provider Identifier assigned to Caroline Seiler, ARNP in Seattle, WA. 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 Nurse Practitioner cover?
(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…
How do I contact Caroline Seiler, ARNP?
The phone number on file with NPPES is (206) 215-2520, last updated Mar 22, 2021. Because NPPES is only updated when a provider files a change, call ahead to confirm the number and the current practice address before visiting.
Is NPI 1144734328 a valid number?
Yes. 1144734328 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.