Quick answers
- Does John W. Lewis Iii accept Medicare assignment?
- Yes. Medicare's clinician data says John W. Lewis Iii accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does John W. Lewis Iii see?
- In 2024, CMS data shows 483 Original Medicare patients and 3,060 services for John W. Lewis Iii. This counts Original Medicare only and measures volume, not quality.
- What is John W. Lewis Iii's NPI number?
- 1245959915. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for John W. Lewis Iii, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 483 |
|---|---|
| Services billed to Medicare | 3,060 |
| Different services or procedures | 81 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)432 services
- Insertion of needle into vein for collection of blood sample (36415)315 services
- Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count (85025)288 services
- Detection test by immunoassay technique for influenza virus (87400)248 services
- Injection of drug or substance under skin or into muscle (96372)182 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol66%
- Arthritis50%
- Diabetes31%
- Ischemic heart disease26%
- Anxiety21%
Hospitals where John W. Lewis Iii works
Medicare's Facility Affiliation Data lists John W. Lewis Iii at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Baptist Memorial Hospital North MSOxford, MS · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 250034
- University of Mississippi Medical CenterJackson, MS · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 250001
- University of Mississippi Medical Center- GrenadaGrenada, MS · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 250168
Practice locations
Addresses where John W. Lewis Iii is enrolled with Medicare (CMS data updated October 2, 2026).
- 1300 Sunset Dr, Suite RGrenada, MS 38901 (662) 226‑7541
- 1487 Belk BlvdOxford, MS 38655
- 960 Avent DrGrenada, MS 38901 (662) 227‑7000
Group practices
Medicare enrollment lists John W. Lewis Iii as a member of these groups (CMS data updated October 2, 2026).
- State of Mississippi - University of Mississippi Medical Center965 clinicians in the group
- Urgent Care Clinic of Oxford7 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Grenada
Clinicians with the same Medicare primary specialty in Grenada, MS — not a recommendation.
Other clinicians in State of Mississippi - University of Mississippi Medical Center
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2022 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1245959915 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians