Maurice Willis, MD
NPI 1942369319 · Medical Oncology Physician · Galveston, TX
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maurice Willis, MD is a Medical Oncology Physician provider in Galveston, TX (NPI 1942369319).
Provider details
- NPI number
- 1942369319
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2023009007 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
19 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
254 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) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 74 | $134 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 71 | $114 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 25 | $139 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 25 | $166 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 24 | $93 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 9 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Oxycodone Hcl | 63 | 19 |
| Ondansetron Hcl | 52 | 27 |
| Dexamethasone | 50 | 24 |
| Olanzapine | 49 | 20 |
| Prochlorperazine Maleate | 41 | 27 |
| Anastrozole | 33 | — |
| Prednisone | 19 | — |
| Pantoprazole Sodium |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$29,630 across 37 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
Additional practice locations (2)
- 400 Medical Plz Ste 100Lake St Louis, MO 63367-1493Phone: (636) 639-8600
- 3655 Vista AveSaint Louis, MO 63110-2539Phone: (314) 617-3618Fax: (314) 617-3631
Registry dates
- Enumerated
- 2006-12-08
- Last updated
- 2026-04-15
- Certified
- 2026-04-15
Frequently asked questions
- What is Maurice Willis's NPI number?
- Maurice Willis's National Provider Identifier (NPI) is 1942369319, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maurice Willis's specialty?
- Maurice Willis is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Maurice Willis located?
- Maurice Willis's practice location on file with NPPES is 1005 Harborside Dr, Galveston, TX 77555-0001.
- What is Maurice Willis's phone number?
- The practice phone number listed in the NPPES registry for Maurice Willis is (409) 772-0035.
- Does Maurice Willis accept Medicare?
- Maurice Willis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maurice Willis's NPI active?
- Yes — Maurice Willis's NPI (1942369319) is active in the NPPES registry as of the last update on 2026-04-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.