Greg Heiler, MD
NPI 1134173156 · Blood Banking & Transfusion Medicine Physician · Eau Claire, WI
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Greg Heiler, MD is a Blood Banking & Transfusion Medicine Physician provider in Eau Claire, WI (NPI 1134173156).
Provider details
- NPI number
- 1134173156
- Entity type
- Individual
- Primary specialty
- Blood Banking & Transfusion Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 33269 (WI)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
- Hematology (Pathology) Physician207ZH0000X
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
236 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 216 | $35 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 20 | $32 |
Typical Medicare-allowed amounts for these services range $32–$35 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-22
- Last updated
- 2021-12-30
- Certified
- 2021-12-30
Frequently asked questions
- What is Greg Heiler's NPI number?
- Greg Heiler's National Provider Identifier (NPI) is 1134173156, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Greg Heiler's specialty?
- Greg Heiler is listed in the NPPES registry with a primary specialty of Blood Banking & Transfusion Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Greg Heiler located?
- Greg Heiler's practice location on file with NPPES is 900 West Clairemont Avenue, Eau Claire, WI 54701.
- What is Greg Heiler's phone number?
- The practice phone number listed in the NPPES registry for Greg Heiler is (715) 839-4121.
- Does Greg Heiler accept Medicare?
- Greg Heiler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Greg Heiler's NPI active?
- Yes — Greg Heiler's NPI (1134173156) is active in the NPPES registry as of the last update on 2021-12-30.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.