Greg Heiler, MD
Greg Heiler, MD is a Blood Banking & Transfusion Medicine Physician in Eau Claire, WI, registered under NPI 1134173156. This provider registers 13 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 900 WEST CLAIREMONT AVENUE, Eau Claire, WI 54701. 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 |
|---|---|---|
| 33269 | WI | Clinical Pathology Physician |
| 33269 | WI | Cytopathology Physician |
| 33269 | WI | Dermatopathology (Pathology) Physician |
| 33269 | WI | Forensic Pathology Physician |
| 33269 | WI | Hematology (Pathology) Physician |
| 33269 | WI | Immunopathology Physician |
| 33269 | WI | Medical Microbiology Physician |
| 33269 | WI | Neuropathology Physician |
| 33269 | WI | Anatomic Pathology & Clinical Pathology… |
| 33269 | WI | Chemical Pathology Physician |
| 33269 | WI | Clinical Pathology/Laboratory Medicine… |
| 33269 | WI | Pediatric Pathology Physician |
| 33269 | WI | Blood Banking & Transfusion Medicine… primary |
This provider holds licence 33269 issued in WI. 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 - Pathology
- PAC ID
- 2961558028
- Enrollment ID
- I20100623000269
Medicare enrolment is recorded as approved under the provider type Practitioner - Pathology. 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 Blood Banking & Transfusion Medicine covers
A physician who specializes in blood banking/transfusion medicine is responsible for the maintenance of an adequate blood supply, blood donor and patient-recipient safety and appropriate blood utilization. Pre-transfusion compatibility testing and antibody testing assure that blood transfusions, when indicated, are as safe as possible. This physician directs the preparation and safe use of specially prepared blood components, including red blood cells, white blood cells, platelets and plasma constituents, and marrow or stem cells for transplantation. NUCC Health Care Provider Taxonomy, code 207ZB0001X
All registered taxonomy codes
This provider registers 13 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207ZC0006X | Clinical Pathology Physician Clinical Pathology | 33269 | WI | |
| 207ZC0500X | Cytopathology Physician Cytopathology | 33269 | WI | |
| 207ZD0900X | Dermatopathology (Pathology) Physician Dermatopathology | 33269 | WI | |
| 207ZF0201X | Forensic Pathology Physician Forensic Pathology | 33269 | WI | |
| 207ZH0000X | Hematology (Pathology) Physician Hematology | 33269 | WI | |
| 207ZI0100X | Immunopathology Physician Immunopathology | 33269 | WI | |
| 207ZM0300X | Medical Microbiology Physician Medical Microbiology | 33269 | WI | |
| 207ZN0500X | Neuropathology Physician Neuropathology | 33269 | WI | |
| 207ZP0102X | Anatomic Pathology & Clinical Pathology Physician Anatomic Pathology & Clinical Pathology | 33269 | WI | |
| 207ZP0104X | Chemical Pathology Physician Chemical Pathology | 33269 | WI | |
| 207ZP0105X | Clinical Pathology/Laboratory Medicine Physician Clinical Pathology/Laboratory Medicine | 33269 | WI | |
| 207ZP0213X | Pediatric Pathology Physician Pediatric Pathology | 33269 | WI | |
| 207ZB0001X | Blood Banking & Transfusion Medicine Physician Blood Banking & Transfusion Medicine | 33269 | WI | primary |
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 | 1134173156 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 22, 2006 |
| Last updated | Dec 30, 2021 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MD |
| Practice address |
900 WEST CLAIREMONT AVENUE Eau Claire, WI 54701 (715) 839-4121 |
| Mailing address |
2715 WEST FRANK ST Eau Claire, WI 54703 |
| Other identifiers |
31843200
· Medicaid (WI) |
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 | 1 | 3 | 4 | 1 | 7 | 3 | 1 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 1 | 6 | 4 | 2 | 7 | 6 | 1 | 1 |
Sum = 54 · next multiple of 10 = 60 · 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.