Quick answers
- Does Leann Rettell-Isla accept Medicare assignment?
- Yes. Medicare's clinician data says Leann Rettell-Isla 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 Leann Rettell-Isla see?
- In 2024, CMS data shows 278 Original Medicare patients and 881 services for Leann Rettell-Isla. This counts Original Medicare only and measures volume, not quality.
- What is Leann Rettell-Isla's NPI number?
- 1831400605. 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 Leann Rettell-Isla, 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 | 278 |
|---|---|
| Services billed to Medicare | 881 |
| Different services or procedures | 40 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)355 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)116 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)112 services
- Hemoglobin a1c level (83036)82 services
- Automated urinalysis test (81003)35 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 cholesterol71%
- High blood pressure66%
- Arthritis37%
- Diabetes31%
- Anxiety22%
- Ischemic heart disease21%
Hospitals where Leann Rettell-Isla works
Medicare's Facility Affiliation Data lists Leann Rettell-Isla 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.
- Novant Health Matthews Medical CenterMatthews, NC · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 340171
- Novant Health Presbyterian Medical CenterCharlotte, NC · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 340053
- Rock Hill Hospital-Piedmont Medical CenterRock Hill, SC · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 420002
Practice locations
Addresses where Leann Rettell-Isla is enrolled with Medicare (CMS data updated October 2, 2026).
- 10810 Mallard Creek RdCharlotte, NC 28262 (704) 510‑8000
Group practices
Medicare enrollment lists Leann Rettell-Isla as a member of this group (CMS data updated October 2, 2026).
- Novant Health Medical Group, LLC2,430 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Charlotte
Clinicians with the same Medicare primary specialty in Charlotte, NC — not a recommendation.
Other clinicians in Novant Health Medical Group, LLC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Graduation year | 2010 (16 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1831400605 |
| 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