Quick answers
- Does Melissa H. Lemieux accept Medicare assignment?
- Yes. Medicare's clinician data says Melissa H. Lemieux 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 Melissa H. Lemieux see?
- In 2024, CMS data shows 230 Original Medicare patients and 7,160 services for Melissa H. Lemieux. This counts Original Medicare only and measures volume, not quality.
- What is Melissa H. Lemieux's NPI number?
- 1710212113. 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 Melissa H. Lemieux, 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 | 230 |
|---|---|
| Services billed to Medicare | 7,160 |
| Different services or procedures | 71 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (Q9967)1,203 services
- Ct guidance for insertion of radiation therapy fields (77014)491 services
- Intensity modulated treatment delivery, single or multiple fields/arcs,via narrow spatially and temporally modulated beams, binary, dynamic mlc, per treatment session (G6015)433 services
- Radiation treatment delivery,3 or more separate treatment areas, custom blocking, tangential ports, wedges, rotational beam, compensators, electron beam; 6-10 mev (G6012)178 services
- Calculation of radiation therapy dose (77300)176 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%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)75%
- High cholesterol74%
- Arthritis43%
- Diabetes35%
- COPD25%
Hospitals where Melissa H. Lemieux works
Medicare's Facility Affiliation Data lists Melissa H. Lemieux 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.
- Mercy San Juan Medical CenterCarmichael, CA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 050516
- Woodland Memorial HospitalWoodland, CA · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 050127
Practice locations
Addresses where Melissa H. Lemieux is enrolled with Medicare (CMS data updated October 2, 2026). The first 5 of 6; the Medicare profile lists all.
- 1700 Prairie City RdFolsom, CA 95630 (916) 351‑4800
- 1730 Prairie City Rd, Suite 120Folsom, CA 95630 (916) 351‑4800
- 3000 Q StSacramento, CA 95816 (916) 560‑0319
- 3301 C St, Suite 500Sacramento, CA 95816 (916) 556‑3300
- 6501 Coyle AveCarmichael, CA 95608 (916) 537‑5190
Group practices
Medicare enrollment lists Melissa H. Lemieux as a member of this group (CMS data updated October 2, 2026).
- Dignity Health Medical Foundation1,184 clinicians in the group
Specialties
- Radiation Oncologyprimary
Other radiation oncologists in California
Clinicians with the same Medicare primary specialty in California — not a recommendation.
Other clinicians in Dignity Health Medical Foundation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2009 (17 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) | 1710212113 |
| 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