Individual provider

Ada Otter, DNP, ARNP

Primary Care Nurse Practitioner Medicare enrolled

Ada Otter, DNP, ARNP is a Primary Care Nurse Practitioner in Seattle, WA, registered under NPI 1518225416.

Getting there

The practice address on file is 4060 E STEVENS WAY NE, Seattle, WA 98195. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

4060 E STEVENS WAY NE, Seattle, WA 98195 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
AP60192201 WA Primary Care Nurse Practitioner primary

This provider holds licence AP60192201 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)
Status
Approved
Provider type
Practitioner - Nurse Practitioner
PAC ID
4587810361
Enrollment ID
I20120809000912

Medicare enrolment is recorded as approved under the provider type Practitioner - Nurse Practitioner. 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 Primary Care covers

Definition to come... NUCC Health Care Provider Taxonomy, code 363LP2300X
Physician Assistants & Advanced Practice Nursing Providers Nurse Practitioner Primary Care

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.

NPI1518225416 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateApr 27, 2012
Last updatedAug 19, 2025
StatusActive
Sole proprietorNo
GenderFemale
CredentialDNP, ARNP
Practice address 4060 E STEVENS WAY NE
Seattle, WA 98195
(206) 597-5242
Mailing address PO BOX 50095
Seattle, WA 98145
This record was updated on Aug 19, 2025, which is recent enough that the contact details are likely still accurate.

Number check

1518225416 passes the NPI check digit test The final digit 6 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 1 8 2 2 5 4 1
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 5 2 8 4 2 1 4 2

Sum = 54 · next multiple of 10 = 60 · check digit = 6 · actual last digit = 6

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 1518225416?
NPI 1518225416 is the National Provider Identifier assigned to Ada Otter, DNP, 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 Primary Care cover?
Definition to come...
How do I contact Ada Otter, DNP, ARNP?
The phone number on file with NPPES is (206) 597-5242, last updated Aug 19, 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 Ada Otter, DNP, ARNP 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 1518225416 a valid number?
Yes. 1518225416 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.