Louis Williams, M.D.
NPI 1467839860 · Hematology & Oncology Physician · Cleveland, OH
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Louis Williams, M.D. is a Hematology & Oncology Physician provider in Cleveland, OH (NPI 1467839860).
Provider details
- NPI number
- 1467839860
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 299169 (NY)
Specialties & taxonomies
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
11 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
611 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) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 189 | $16 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 153 | $112 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 136 | $137 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 62 | $92 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 22 | $120 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Acyclovir | 145 | 37 |
| Lenalidomide | 41 | 12 |
| Lenalidomidebrand: Revlimid | 32 | — |
| Zanubrutinibbrand: Brukinsa | 29 | — |
| Apixabanbrand: Eliquis | 29 | — |
| Pomalidomidebrand: Pomalyst | 22 | — |
| Sulfamethoxazole/Trimethoprimbrand: Sulfamethoxazole-Trimethoprim | 21 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$11,910 across 12 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 (1)
- Nyu Langone Medical Center550 First AvenueNew York, NY 10016-0001Phone: (212) 562-1135
Registry dates
- Enumerated
- 2015-05-05
- Last updated
- 2021-08-31
- Certified
- 2021-08-13
Frequently asked questions
- What is Louis Williams's NPI number?
- Louis Williams's National Provider Identifier (NPI) is 1467839860, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louis Williams's specialty?
- Louis Williams is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Louis Williams located?
- Louis Williams's practice location on file with NPPES is Cleveland Clinic Taussig Cancer Center, Cleveland, OH 44106.
- What is Louis Williams's phone number?
- The practice phone number listed in the NPPES registry for Louis Williams is (412) 719-9164.
- Does Louis Williams accept Medicare?
- Louis Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Louis Williams's NPI active?
- Yes — Louis Williams's NPI (1467839860) is active in the NPPES registry as of the last update on 2021-08-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.