Erik Ranheim, MD PHD
Erik Ranheim, MD PHD is a Hematology (Pathology) Physician in Madison, WI, registered under NPI 1275595456. This provider registers 4 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
The practice address on file is 600 HIGHLAND AVE, Madison, WI 53792. 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 |
|---|---|---|
| 45293 | WI | Hematology (Pathology) Physician primary |
| 45293 | WI | Clinical Pathology Physician |
| 45293 | WI | Immunopathology Physician |
| 45293 | WI | Clinical Pathology/Laboratory Medicine… |
This provider holds licence 45293 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
- 0547398869
- Enrollment ID
- I20100506001052
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 Hematology covers
A hematopathologist is expert in diseases that affect blood cells, blood clotting mechanisms, bone marrow and lymph nodes. This physician has the knowledge and technical skills essential for the laboratory diagnosis of anemias, leukemias, lymphomas, bleeding disorders and blood clotting disorders. NUCC Health Care Provider Taxonomy, code 207ZH0000X
All registered taxonomy codes
This provider registers 4 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 207ZH0000X | Hematology (Pathology) Physician Hematology | 45293 | WI | primary |
| 207ZC0006X | Clinical Pathology Physician Clinical Pathology | 45293 | WI | |
| 207ZI0100X | Immunopathology Physician Immunopathology | 45293 | WI | |
| 207ZP0105X | Clinical Pathology/Laboratory Medicine Physician Clinical Pathology/Laboratory Medicine | 45293 | WI |
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 | 1275595456 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 4, 2006 |
| Last updated | Jan 20, 2021 |
| Status | Active |
| Sole proprietor | No |
| Credential | MD PHD |
| Practice address |
600 HIGHLAND AVE Madison, WI 53792 (608) 263-8437 |
| Mailing address |
7974 UW HEALTH CT Middleton, WI 53562 |
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 | 7 | 5 | 5 | 9 | 5 | 4 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 2 | 5 | 5 | 1 | 9 | 1 | 4 | 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.