Bridgitte Mathiasen, LMHC, MSCC, BS
Bridgitte Mathiasen, LMHC, MSCC, BS is a Mental Health Counselor in Renton, WA, registered under NPI 1053609503. This provider registers 7 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 4445 TALBOT RD S, Renton, WA 98055. 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 |
|---|---|---|
| LH60604127 | WA | Mental Health Counselor primary |
| LH60604127 | WA | Professional Counselor |
| LH60604127 | WA | Psychoanalyst |
This provider holds licence LH60604127 issued in WA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Mental Health Counselor
- PAC ID
- 9234581125
- Enrollment ID
- I20240116003481
Medicare enrolment is recorded as approved under the provider type Practitioner - Mental Health Counselor. 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
All registered taxonomy codes
This provider registers 7 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 101YM0800X | Mental Health Counselor Mental Health | LH60604127 | WA | primary |
| 106H00000X | Marriage & Family Therapist | — | — | |
| 273R00000X | Psychiatric Hospital Unit | — | — | |
| 101YP2500X | Professional Counselor Professional | LH60604127 | WA | |
| 102L00000X | Psychoanalyst | LH60604127 | WA | |
| 1041C0700X | Clinical Social Worker Clinical | — | — | |
| 101YA0400X | Addiction (Substance Use Disorder) Counselor Addiction (Substance Use Disorder) | — | — |
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 | 1053609503 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 19, 2011 |
| Last updated | Dec 7, 2023 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | LMHC, MSCC, BS |
| Practice address |
4445 TALBOT RD S Renton, WA 98055 (425) 656-4055 Fax (425) 656-5425 |
| Mailing address |
3600 LIND AVE SW SUITE 100 - ATTN: CREDENTIALING Renton, WA 98057 |
| Other identifiers |
2074643
· Medicaid (WA) |
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 | 0 | 5 | 3 | 6 | 0 | 9 | 5 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 1 | 3 | 3 | 0 | 9 | 5 | 0 |
Sum = 47 · next multiple of 10 = 50 · check digit = 3 · actual last digit = 3
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.