Quick answers
- Does Andrea L. Lewis accept Medicare assignment?
- Yes. Medicare's clinician data says Andrea L. 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 Andrea L. Lewis see?
- In 2024, CMS data shows 55 Original Medicare patients and 107 services for Andrea L. Lewis. This counts Original Medicare only and measures volume, not quality.
- What is Andrea L. Lewis's NPI number?
- 1568607133. 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 Andrea L. 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 | 55 |
|---|---|
| Services billed to Medicare | 107 |
| Different services or procedures | 8 |
| Participating Medicare provider | Yes |
| Average age of these patients | 65 |
Most frequent services
- Dialysis services, 4 or more physician visits per month (20 years or older) (90960)33 services
- Dialysis services, 2-3 physician visits per month (20 years or older) (90961)31 services
- Dialysis services, 1 physician visit per month (20 years or older) (90962)12 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%
- Heart failure75%
- Diabetes71%
- Ischemic heart disease58%
Hospitals where Andrea L. Lewis works
Medicare's Facility Affiliation Data lists Andrea L. 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.
- St Mary Medical Center IncHobart, IN · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 150034
Practice locations
Addresses where Andrea L. Lewis is enrolled with Medicare (CMS data updated October 2, 2026).
- 1705 W 25th Ave, Suite 102Gary, IN 46404 (219) 844‑2011
- 2711 Leonard Dr, Suite 101Valparaiso, IN 46383 (219) 462‑6001
- 569 Tyler StGary, IN 46402 (260) 885‑3300
Group practices
Medicare enrollment lists Andrea L. Lewis as a member of this group (CMS data updated October 2, 2026).
- Nephrology Associates of Northern Indiana PC65 clinicians in the group
Specialties
Find other clinicians: Certified Clinical Nurse Specialist (CNS), Indiana →
Other clinical nurse specialists in Indiana
Clinicians with the same Medicare primary specialty in Indiana — not a recommendation.
Other clinicians in Nephrology Associates of Northern Indiana PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | CNS |
|---|---|
| Graduation year | 2008 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1568607133 |
| 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