Quick answers
- Does Mary J. Shaver-Lewis accept Medicare assignment?
- Yes. Medicare's clinician data says Mary J. Shaver-Lewis 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 Mary J. Shaver-Lewis see?
- In 2024, CMS data shows 801 Original Medicare patients and 4,692 services for Mary J. Shaver-Lewis. This counts Original Medicare only and measures volume, not quality.
- What is Mary J. Shaver-Lewis's NPI number?
- 1497746341. 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 Mary J. Shaver-Lewis, 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 | 801 |
|---|---|
| Services billed to Medicare | 4,692 |
| Different services or procedures | 32 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)1,203 services
- Injection, epoetin alfa-epbx, biosimilar, (retacrit) (for non-esrd use), 1000 units (Q5106)1,170 services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)573 services
- Dialysis services, 4 or more physician visits per month (20 years or older) (90960)359 services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)130 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 cholesterol75%
- Chronic kidney disease75%
- Diabetes60%
- Ischemic heart disease54%
- Arthritis51%
Hospitals where Mary J. Shaver-Lewis works
Medicare's Facility Affiliation Data lists Mary J. Shaver-Lewis 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 Health Medical Center North Little RockNorth Little Rock, AR · Acute Care Hospital · Medicare rating: 1 of 5 stars · Emergency services: listed by Medicare · CCN 040036
- Baptist Health Medical Center- ConwayConway, AR · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 040154
- CHI St Vincent MorriltonMorrilton, AR · Critical Access Hospital · Emergency services: listed by Medicare · CCN 041324
- Conway Regional Medical Center, IncConway, AR · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 040029
- Ozark HealthClinton, AR · Critical Access Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 041313
Practice locations
Addresses where Mary J. Shaver-Lewis is enrolled with Medicare (CMS data updated October 2, 2026).
- 1200 N Main St, Suite 2Benton, AR 72015 (501) 778‑0200
- 2425 Dave Ward Dr, Suite 601Conway, AR 72034 (501) 764‑1315
- 3401 Springhill Dr, Suite 325North Little Rock, AR 72117 (501) 955‑0320
Group practices
Medicare enrollment lists Mary J. Shaver-Lewis as a member of this group (CMS data updated October 2, 2026).
- Nephrology Associates PA11 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Arkansas
Clinicians with the same Medicare primary specialty in Arkansas — not a recommendation.
Other clinicians in Nephrology Associates PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | University Of Arkansas College Of Medicine |
| Graduation year | 1996 (30 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1497746341 |
| 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