Carl Willis, M.D.
NPI 1154376259 · Hematology & Oncology Physician · Nashville, TN
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carl Willis, M.D. is a Hematology & Oncology Physician provider in Nashville, TN (NPI 1154376259).
Provider details
- NPI number
- 1154376259
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 037952 (TN)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
1,438 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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) |
|---|---|---|
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 382 | $8 |
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 281 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 185 | $124 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 180 | $88 |
| Injection of Additional New Drug Or Substance Into Vein96375 | 97 | $15 |
| Administration of Chemotherapy Into Vein, 1 Hour Or Less96413 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 18 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Letrozole | 221 | 58 |
| Anastrozole | 132 | 39 |
| Palbociclibbrand: Ibrance | 35 | — |
| Gabapentin | 34 | 17 |
| Warfarin Sodium | 29 | — |
| Tamoxifen Citrate | 24 | — |
| Rivaroxabanbrand: Xarelto | 20 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$3,210 across 135 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-05-24
- Last updated
- 2025-09-17
- Certified
- 2025-09-17
Frequently asked questions
- What is Carl Willis's NPI number?
- Carl Willis's National Provider Identifier (NPI) is 1154376259, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carl Willis's specialty?
- Carl Willis is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Carl Willis located?
- Carl Willis's practice location on file with NPPES is 322 22nd Ave N Ste 400, Nashville, TN 37203-1870.
- What is Carl Willis's phone number?
- The practice phone number listed in the NPPES registry for Carl Willis is (615) 320-5090.
- Does Carl Willis accept Medicare?
- Carl Willis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carl Willis's NPI active?
- Yes — Carl Willis's NPI (1154376259) is active in the NPPES registry as of the last update on 2025-09-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.