Quick answers
- Which hospitals does Wanda Marelis work at?
- Medicare's official clinician data lists Wanda Marelis at 1 hospital: Merrimack Health Lawrence Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Wanda Marelis see patients?
- Medicare's clinician data lists 4 practice locations, including Chelmsford, MA, Lowell, MA and Lawrence, MA. Call before your visit to confirm the address.
- What is Wanda Marelis's specialty?
- Medicare lists Nurse Practitioner as the primary specialty.
- Does Wanda Marelis accept Medicare assignment?
- Medicare's clinician data says Wanda Marelis may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- Does Wanda Marelis offer telehealth?
- Medicare's clinician data says Wanda Marelis offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Wanda Marelis?
- (978) 275-9444, as listed in official Medicare / NPI Registry data.
- What is Wanda Marelis's NPI number?
- 1538789003. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Wanda Marelis works
Medicare's Facility Affiliation Data lists Wanda Marelis at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Merrimack Health Lawrence HospitalLawrence, MA · Acute Care Hospital · CCN 220010
Practice locations
Addresses where Wanda Marelis is enrolled with Medicare (CMS data updated 2026-10-02).
- 2 Courthouse Ln, Suite 3Chelmsford, MA 01824 (978) 275‑9444
- 21 George St, Suite 300Lowell, MA 01852 (978) 459‑2306
- 34 Haverhill StLawrence, MA 01841 (978) 686‑0090
- 700 Essex StLawrence, MA 01841 (978) 689‑2400
Group practices
Medicare enrollment lists Wanda Marelis as a member of these groups (CMS data updated 2026-10-02).
- Greater Lawrence Family Health Center Inc122 clinicians in the group
- Comprehensive Health Services LLC14 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Chelmsford
Clinicians with the same Medicare primary specialty in Chelmsford, MA — not a recommendation.
Clinician information
| Graduation year | 2023 |
|---|---|
| Gender (as listed) | Female |
| Medicare assignment | May accept for some services |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1538789003 |
| 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 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- 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