Leslie Walker, MD
NPI 1275576118 · Hematology & Oncology Physician · Tulsa, OK
Enrolled with Medicare as Practitioner - Medical Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Leslie Walker, MD is a Hematology & Oncology Physician provider in Tulsa, OK (NPI 1275576118).
Provider details
- NPI number
- 1275576118
- Entity type
- Individual
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 24934 (OK)
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
759 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 Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 590 | $118 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 42 | $84 |
| New Patient Office Or Other Outpatient Visit With a High Level of Medical Decision Making, If Using Time, 60 Minutes Or More99205 | 38 | $203 |
| Initial Hospital Care With Straightforward Or Low-Level Medical Decision Making, If Using Time, at Least 55 Minutes99222 | 38 | $122 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 31 | $167 |
| 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 · 37 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Anastrozole | 214 | 58 |
| Gabapentin | 136 | 29 |
| Alendronate Sodium | 134 | 33 |
| Prednisone | 128 | 38 |
| Famotidine | 110 | 45 |
| Abiraterone Acetate | 89 | 16 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 85 | 30 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$116 across 6 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
- 2006-06-14
- Last updated
- 2016-01-12
Frequently asked questions
- What is Leslie Walker's NPI number?
- Leslie Walker's National Provider Identifier (NPI) is 1275576118, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Leslie Walker's specialty?
- Leslie Walker is listed in the NPPES registry with a primary specialty of Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Leslie Walker located?
- Leslie Walker's practice location on file with NPPES is 1809 E 13th St, Tulsa, OK 74104-4419.
- What is Leslie Walker's phone number?
- The practice phone number listed in the NPPES registry for Leslie Walker is (918) 579-3850.
- Does Leslie Walker accept Medicare?
- Leslie Walker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Leslie Walker's NPI active?
- Yes — Leslie Walker's NPI (1275576118) is active in the NPPES registry as of the last update on 2016-01-12.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.