Chan Hwang, MD
Chan Hwang, MD is a Neuromuscular Medicine (Physical Medicine & Rehabilitation) Physician in Lakewood, WA, registered under NPI 1861486367. 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 9312 S TACOMA WAY STE 115, Lakewood, WA 98499. 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 |
|---|---|---|
| 00035834 | WA | Neuromuscular Medicine (Physical Medicine… primary |
| MD00035834 | WA | Pain Medicine (Physical Medicine &… |
This provider holds licence 00035834 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 Neuromuscular Medicine covers
A physician who specializes in neuromuscular medicine possesses specialized knowledge in the science, clinical evaluation and management of these disorders. This encompasses the knowledge of the pathology, diagnosis and treatment of these disorders at a level that is significantly beyond the training and knowledge expected of a general neurologist, child neurologist or physiatrist. NUCC Health Care Provider Taxonomy, code 2081N0008X
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 | |
|---|---|---|---|---|
| 2081N0008X | Neuromuscular Medicine (Physical Medicine & Rehabilitation) Physician Neuromuscular Medicine | 00035834 | WA | primary |
| 2081P2900X | Pain Medicine (Physical Medicine & Rehabilitation) Physician Pain Medicine | MD00035834 | 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 | 1861486367 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 12, 2005 |
| Last updated | Nov 17, 2017 |
| Status | Active |
| Sole proprietor | Yes |
| Credential | MD |
| Practice address |
9312 S TACOMA WAY STE 115 Lakewood, WA 98499 (253) 251-2551 Fax (253) 251-3197 |
| Mailing address |
6820 WATER ST NE Tacoma, WA 98422 |
| Other identifiers |
1114321
· Medicaid (WA) 0150123 · Other (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 | 8 | 6 | 1 | 4 | 8 | 6 | 3 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 8 | 3 | 1 | 8 | 8 | 3 | 3 | 3 |
Sum = 63 · next multiple of 10 = 70 · check digit = 7 · actual last digit = 7
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.