Quick answers
- Which hospitals does Michael G. Bertos work at?
- Medicare's official clinician data lists Michael G. Bertos at 5 hospitals: Emerson Hospital -, Exeter Hospital Inc, Lahey Hospital & Medical Center, Burlington, Lowell General Hospital and St Joseph Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Michael G. Bertos see patients?
- Medicare's clinician data lists 2 practice locations, including Lowell, MA and North Chelmsford, MA. Call before your visit to confirm the address.
- What is Michael G. Bertos's specialty?
- Medicare lists Internal Medicine as the primary specialty.
- Does Michael G. Bertos accept Medicare assignment?
- Yes. Medicare's clinician data says Michael G. Bertos 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 Michael G. Bertos offer telehealth?
- Medicare's clinician data says Michael G. Bertos offers telehealth services. Ask the office which visits can be done by video or phone.
- What is the phone number for Michael G. Bertos?
- (978) 569-1071, as listed in official Medicare / NPI Registry data.
- What is Michael G. Bertos's NPI number?
- 1043245145. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Michael G. Bertos works
Medicare's Facility Affiliation Data lists Michael G. Bertos at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Emerson Hospital -W Concord, MA · Acute Care Hospital · CCN 220084
- Exeter Hospital IncExeter, NH · Acute Care Hospital · CCN 300023
- Lahey Hospital & Medical Center, BurlingtonBurlington, MA · Acute Care Hospital · CCN 220171
- Lowell General HospitalLowell, MA · Acute Care Hospital · CCN 220063
- St Joseph HospitalNashua, NH · Acute Care Hospital · CCN 300011
Practice locations
Addresses where Michael G. Bertos is enrolled with Medicare (CMS data updated 2026-10-02).
- 1081 Varnum AveLowell, MA 01854 (978) 569‑1071
- 20 Research Pl, Suite 310North Chelmsford, MA 01863 (978) 459‑2152
Group practices
Medicare enrollment lists Michael G. Bertos as a member of this group (CMS data updated 2026-10-02).
- LGH Professional Services LLC10 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Lowell
Clinicians with the same Medicare primary specialty in Lowell, MA — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Boston University School Of Medicine |
| Graduation year | 1997 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1043245145 |
| 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