Rudolph Willis, M.D.
NPI 1831194216 · Hematology & Oncology Physician · Portsmouth, VA
Enrolled with Medicare as Practitioner - Hospice/Palliative Care · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rudolph Willis, M.D. is a Hematology & Oncology Physician provider in Portsmouth, VA (NPI 1831194216).
Provider details
- NPI number
- 1831194216
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- License
- 0101233411 (VA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
21 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
663 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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 572 | $125 |
| Hospital Discharge Day Management, More Than 30 Minutes99239 | 50 | $121 |
| Initial Hospital Care With Moderate Level of Medical Decision Making, If Using Time, at Least 75 Minutes99223 | 23 | $183 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 18 | $139 |
Typical Medicare-allowed amounts for these services range $121–$183 (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.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 31 | 31 |
| Amlodipine Besylate | 20 | 20 |
| Apixabanbrand: Eliquis | 14 | 13 |
| Clopidogrel Bisulfatebrand: Clopidogrel | 11 | 11 |
| Losartan Potassium | 11 | 11 |
| Pantoprazole Sodium | 11 | 11 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-14
- Last updated
- 2007-07-09
Frequently asked questions
- What is Rudolph Willis's NPI number?
- Rudolph Willis's National Provider Identifier (NPI) is 1831194216, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rudolph Willis's specialty?
- Rudolph Willis is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Rudolph Willis located?
- Rudolph Willis's practice location on file with NPPES is 355 Crawford St, Portsmouth, VA 23704-2819.
- What is Rudolph Willis's phone number?
- The practice phone number listed in the NPPES registry for Rudolph Willis is (757) 396-6333.
- Does Rudolph Willis accept Medicare?
- Rudolph Willis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rudolph Willis's NPI active?
- Yes — Rudolph Willis's NPI (1831194216) is active in the NPPES registry as of the last update on 2007-07-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.