Quick answers
- Does Cassie M. Lewis accept Medicare assignment?
- Yes. Medicare's clinician data says Cassie M. 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 Cassie M. Lewis see?
- In 2024, CMS data shows 105 Original Medicare patients and 186 services for Cassie M. Lewis. This counts Original Medicare only and measures volume, not quality.
- What is Cassie M. Lewis's NPI number?
- 1841688041. 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 Cassie M. 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 | 105 |
|---|---|
| Services billed to Medicare | 186 |
| Different services or procedures | 31 |
| Participating Medicare provider | Yes |
| Average age of these patients | 71 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)55 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)23 services
- Automated urinalysis test (81003)11 services
- New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more (99203)11 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%
- Arthritis58%
- Diabetes32%
- Chronic kidney disease30%
- Anxiety27%
Practice locations
Addresses where Cassie M. Lewis is enrolled with Medicare (CMS data updated October 2, 2026).
- 4001 J StSacramento, CA 95819 (916) 453‑4545
- 4400 Duckhorn Dr, Suite 100Sacramento, CA 95834 (916) 575‑8000
- 7500 Hospital DrSacramento, CA 95823 (916) 423‑3000
Group practices
Medicare enrollment lists Cassie M. Lewis as a member of these groups (CMS data updated October 2, 2026).
- Cep America - California1,292 clinicians in the group
- Dignity Health Medical Foundation1,184 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Sacramento
Clinicians with the same Medicare primary specialty in Sacramento, CA — not a recommendation.
Other clinicians in Cep America - California
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2009 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1841688041 |
| 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
- 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