Quick answers
- Does Melissa A. Ernst Brenot accept Medicare assignment?
- Yes. Medicare's clinician data says Melissa A. Ernst Brenot 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 A. Ernst Brenot see?
- In 2024, CMS data shows 352 Original Medicare patients and 1,072 services for Melissa A. Ernst Brenot. This counts Original Medicare only and measures volume, not quality.
- What is Melissa A. Ernst Brenot's NPI number?
- 1245266998. 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 A. Ernst Brenot, 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 | 352 |
|---|---|
| Services billed to Medicare | 1,072 |
| Different services or procedures | 10 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient complete exam of visual system (92014)251 services
- Photography of the retina (92250)205 services
- New patient complete exam of visual system (92004)80 services
- Established patient problem focused exam of visual system (92012)12 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 cholesterol75%
- High blood pressure60%
- Arthritis37%
- Anxiety24%
- Depression18%
- Chronic kidney disease17%
Practice locations
Addresses where Melissa A. Ernst Brenot is enrolled with Medicare (CMS data updated October 2, 2026).
- 119 Route 137, Suite BEast Harwich, MA 02645 (508) 432‑3444
Group practices
Medicare enrollment lists Melissa A. Ernst Brenot as a member of this group (CMS data updated October 2, 2026).
- Aeg Massachusetts Professional PC45 clinicians in the group
Specialties
- Optometryprimary
Other optometrists in Massachusetts
Clinicians with the same Medicare primary specialty in Massachusetts — not a recommendation.
Other clinicians in Aeg Massachusetts Professional PC
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | OD |
|---|---|
| Graduation year | 1995 (31 years since optometry school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1245266998 |
| 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 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