Andrew Kau, MD
Andrew Kau, MD is an Allergy & Immunology (Internal Medicine) Physician in Saint Louis, MO, registered under NPI 1215073580. This provider registers 3 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 1110 HIGHLANDS PLAZA DR E DIV IM ALLERGY AND IMMUNOLOGY, STE 300, Saint Louis, MO 63110. 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 |
|---|---|---|
| 2009001739 | MO | Allergy & Immunology (Internal Medicine)… primary |
| 2009001739 | MO | Allergy & Immunology Physician |
| 2009001739 | MO | Internal Medicine Physician |
This provider holds licence 2009001739 issued in MO. 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 - Allergy/immunology
- PAC ID
- 6901083427
Medicare enrolment is recorded as approved under the provider type Practitioner - Allergy/immunology. 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 Allergy & Immunology covers
An internist doctor of osteopathy that specializes in the treatment of allergy and immunologic disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine can obtain a Certificate of Special Qualifications in the field of Allergy & Immunology. NUCC Health Care Provider Taxonomy, code 207RA0201X
All registered taxonomy codes
This provider registers 3 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207RA0201X | Allergy & Immunology (Internal Medicine) Physician Allergy & Immunology | 2009001739 | MO | primary |
| 207K00000X | Allergy & Immunology Physician | 2009001739 | MO | |
| 207R00000X | Internal Medicine Physician | 2009001739 | MO |
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 | 1215073580 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jan 30, 2007 |
| Last updated | Apr 17, 2025 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD |
| Practice address |
1110 HIGHLANDS PLAZA DR E DIV IM ALLERGY AND IMMUNOLOGY, STE 300 Saint Louis, MO 63110 (314) 996-8670 Fax (866) 362-4984 |
| Mailing address |
PO BOX 7412011 Chicago, IL 60674 |
| Other identifiers |
205578404
(MO) |
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 | 2 | 1 | 5 | 0 | 7 | 3 | 5 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 2 | 2 | 5 | 0 | 7 | 6 | 5 | 7 |
Sum = 60 · next multiple of 10 = 60 · check digit = 0 · actual last digit = 0
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.