Michael Nakayama, LICSW, GMHS
Michael Nakayama, LICSW, GMHS is a provider specialising in Psychiatric Hospital in Seattle, WA, registered under NPI 1316009632. 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 1550 N 115TH ST MS: E-120, Seattle, WA 98133. We have not yet mapped what surrounds this office — parking, transit, and nearby pharmacies are added as our data collection reaches each location.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| LW00009568 | WA | Psychiatric Hospital primary |
| RC00047472 | WA | Professional Counselor |
This provider holds licence LW00009568 issued in WA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
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 Psychiatric Hospital covers
An organization including a physical plant and personnel that provides multidisciplinary diagnostic and treatment mental health services to patients requiring the safety, security, and shelter of the inpatient or partial hospitalization settings. NUCC Health Care Provider Taxonomy, code 283Q00000X
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.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 283Q00000X | Psychiatric Hospital | LW00009568 | WA | primary |
| 101YP2500X | Professional Counselor Professional | RC00047472 | 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.
| NPI | 1316009632 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 14, 2006 |
| Last updated | Nov 21, 2008 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | LICSW, GMHS |
| Practice address |
1550 N 115TH ST MS: E-120 Seattle, WA 98133 (206) 368-1172 Fax (206) 368-1489 |
Number check
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 | 3 | 1 | 6 | 0 | 0 | 9 | 6 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 3 | 2 | 6 | 0 | 0 | 9 | 6 | 6 |
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.