Individual provider

Susannah Hart Stephens, LICSW, SUDP

Addiction (Substance Use Disorder) Counselor Mental Health Counselor Medicare enrolled

Susannah Hart Stephens, LICSW, SUDP is a Mental Health Counselor in Suquamish, WA, registered under NPI 1639558885. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty. 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 18490 SUQUAMISH WAY NE, Suquamish, WA 98392. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.

18490 SUQUAMISH WAY NE, Suquamish, WA 98392 Open in Google Maps →

Credentials and Medicare

State licence
LicenceStateSpecialty
CP60672681 WA Addiction (Substance Use Disorder)…
LW61492248 WA Mental Health Counselor primary

This provider holds licence CP60672681 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 - Clinical Social Worker
PAC ID
6305280413
Enrollment ID
I20240216001749

Medicare enrolment is recorded as approved under the provider type Practitioner - Clinical Social Worker. 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 Mental Health covers

Definition to come... NUCC Health Care Provider Taxonomy, code 101YM0800X
Behavioral Health & Social Service Providers Counselor Mental Health

All registered taxonomy codes

This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.

CodeSpecialtyLicenceState
101YA0400X Addiction (Substance Use Disorder) Counselor Addiction (Substance Use Disorder) CP60672681 WA
101YM0800X Mental Health Counselor Mental Health LW61492248 WA primary

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.

NPI1639558885 valid check digit
Entity typeIndividual (NPI-1)
Enumeration dateMay 20, 2015
Last updatedJan 16, 2024
StatusActive
Sole proprietorYes
GenderFemale
CredentialLICSW, SUDP
Practice address 18490 SUQUAMISH WAY NE
Suquamish, WA 98392
(360) 394-8558
Fax (360) 598-1724
Other identifiers 2206507 · Medicaid (WA)
This record was updated on Jan 16, 2024, which is recent enough that the contact details are likely still accurate.

Number check

1639558885 passes the NPI check digit test The final digit 5 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 3 9 5 5 8 8 8
Doubled? ×2 ×2 ×2 ×2 ×2 ×2 ×2
Value 8 0 8 8 0 2 6 6 9 1 5 7 8 7

Sum = 75 · next multiple of 10 = 80 · check digit = 5 · actual last digit = 5

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 1639558885?
NPI 1639558885 is the National Provider Identifier assigned to Susannah Hart Stephens, LICSW, SUDP in Suquamish, 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 Mental Health cover?
Definition to come...
How do I contact Susannah Hart Stephens, LICSW, SUDP?
The phone number on file with NPPES is (360) 394-8558, last updated Jan 16, 2024. 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 Susannah Hart Stephens, LICSW, SUDP 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 1639558885 a valid number?
Yes. 1639558885 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.