Quick answers
- Which hospitals does Avalon C. Mertens work at?
- Medicare's official clinician data lists Avalon C. Mertens at 2 hospitals: Massachusetts General Hospital and North Shore Medical Center -. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Avalon C. Mertens see patients?
- Medicare's clinician data lists 2 practice locations, including Salem, MA. Call before your visit to confirm the address.
- What is Avalon C. Mertens's specialty?
- Medicare lists Pulmonary Disease as the primary specialty, and also Internal Medicine.
- Does Avalon C. Mertens accept Medicare assignment?
- Yes. Medicare's clinician data says Avalon C. Mertens accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- Does Avalon C. Mertens offer telehealth?
- Medicare's clinician data says Avalon C. Mertens offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Avalon C. Mertens?
- (978) 745-4489, as listed in official Medicare / NPI Registry data.
- What is Avalon C. Mertens's NPI number?
- 1689066987. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Avalon C. Mertens works
Medicare's Facility Affiliation Data lists Avalon C. Mertens at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Massachusetts General HospitalBoston, MA · Acute Care Hospital · CCN 220071
- North Shore Medical Center -Salem, MA · Acute Care Hospital · CCN 220035
Practice locations
Addresses where Avalon C. Mertens is enrolled with Medicare (CMS data updated 2026-10-02).
- 55 Highland Ave, Suite 104Salem, MA 01970 (978) 745‑4489
- 81 Highland AveSalem, MA 01970 (978) 354‑2551
Group practices
Medicare enrollment lists Avalon C. Mertens as a member of this group (CMS data updated 2026-10-02).
- Mass General Brigham Medical Group Northern Massachusetts Inc827 clinicians in the group
Specialties
- Pulmonary Diseaseprimary
- Internal Medicinealso
Other pulmonologists in Salem
Clinicians with the same Medicare primary specialty in Salem, MA — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | Nova Southeastern College Of Osteo Medicine |
| Graduation year | 2015 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1689066987 |
| 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