Griffith Hsu, MD
Griffith Hsu, MD is an Otology & Neurotology Physician in Glen Ellyn, IL, registered under NPI 1669448056. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 430 PENNSYLVANIA AVE # 330, Glen Ellyn, IL 60137. 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 |
|---|---|---|
| 036107355 | IL | Otology & Neurotology Physician primary |
| 036107355 | IL | Otolaryngology Physician |
This provider holds licence 036107355 issued in IL. 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 - Otolaryngology
- PAC ID
- 0042105652
Medicare enrolment is recorded as approved under the provider type Practitioner - Otolaryngology. This means the provider is enrolled to bill Medicare, though it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Otology & Neurotology covers
An otolaryngologist who treats diseases of the ear and temporal bone, including disorders of hearing and balance. The additional training in otology and neurotology emphasizes the study of embryology, anatomy, physiology, epidemiology, pathophysiology, pathology, genetics, immunology, microbiology and the etiology of diseases of the ear and temporal bone. NUCC Health Care Provider Taxonomy, code 207YX0901X
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 | |
|---|---|---|---|---|
| 207YX0901X | Otology & Neurotology Physician Otology & Neurotology | 036107355 | IL | primary |
| 207Y00000X | Otolaryngology Physician | 036107355 | IL |
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 | 1669448056 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 24, 2006 |
| Last updated | Mar 23, 2026 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
430 PENNSYLVANIA AVE # 330 Glen Ellyn, IL 60137 (630) 469-9200 |
| Mailing address |
1860 PAYSPHERE CIR Chicago, IL 60674 |
| Other identifiers |
036107355
(IL) |
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 | 6 | 6 | 9 | 4 | 4 | 8 | 0 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 6 | 3 | 9 | 8 | 4 | 7 | 0 | 1 |
Sum = 64 · next multiple of 10 = 70 · 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.