Quick answers
- Where does Lon G. Sherman see patients?
- Medicare's clinician data lists 1 practice location in Newburyport, MA. Call before your visit to confirm the address.
- What is Lon G. Sherman's specialty?
- Medicare lists Cardiovascular Disease (Cardiology) as the primary specialty, and also Internal Medicine.
- Does Lon G. Sherman accept Medicare assignment?
- Yes. Medicare's clinician data says Lon G. Sherman 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.
- What is the phone number for Lon G. Sherman?
- (978) 462-1110, as listed in official Medicare / NPI Registry data.
- What is Lon G. Sherman's NPI number?
- 1578782850. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Practice locations
Addresses where Lon G. Sherman is enrolled with Medicare (CMS data updated 2026-10-02).
- 7 Henry Graf Jr RdNewburyport, MA 01950 (978) 462‑1110
Group practices
Medicare enrollment lists Lon G. Sherman as a member of this group (CMS data updated 2026-10-02).
- Newburyport Cardiovascular Associates, LLC9 clinicians in the group
Specialties
Find other Cardiovascular Disease (Cardiology) doctors in Massachusetts →
Other cardiologists in Massachusetts
Clinicians with the same Medicare primary specialty in Massachusetts — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Columbia University College Of Physicians And Surgeons |
| Graduation year | 1974 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1578782850 |
| 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 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