Individual provider

Jo-ana Dolojan, ARNP

Cardiovascular Disease Physician

Jo-ana Dolojan, ARNP is a Cardiovascular Disease Physician in Seattle, WA, registered under NPI 1659344109.

Getting there

The practice address on file is 1100 9TH AVE, Seattle, WA 98101. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

1100 9TH AVE, Seattle, WA 98101 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
RN00130942 WA Cardiovascular Disease Physician primary

This provider holds licence RN00130942 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 Cardiovascular Disease covers

An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms. NUCC Health Care Provider Taxonomy, code 207RC0000X
Allopathic & Osteopathic Physicians Internal Medicine Cardiovascular Disease

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.

NPI1659344109 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateFeb 7, 2006
Last updatedJul 13, 2026
StatusActive
Sole proprietorNo
GenderFemale
CredentialARNP
Practice address 1100 9TH AVE
Seattle, WA 98101
(206) 223-6600
Mailing address 1100 OLIVE WAY MS: M4-PA
Seattle, WA 98101
Other identifiers 2055DO · Other (WA)
9642596 · Medicaid (WA)
P00135837 · Other (WA)
This record was updated on Jul 13, 2026, which is recent enough that the contact details are likely still accurate.

Number check

1659344109 passes the NPI check digit test The final digit 9 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 6 5 9 3 4 4 1 0
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 6 1 9 6 4 8 1 0

Sum = 61 · next multiple of 10 = 70 · check digit = 9 · actual last digit = 9

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 1659344109?
NPI 1659344109 is the National Provider Identifier assigned to Jo-ana Dolojan, 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 Cardiovascular Disease cover?
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
How do I contact Jo-ana Dolojan, ARNP?
The phone number on file with NPPES is (206) 223-6600, last updated Jul 13, 2026. 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 1659344109 a valid number?
Yes. 1659344109 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.