Quick answers
- Does Naomi Gross accept Medicare assignment?
- Yes. Medicare's clinician data says Naomi Gross 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 Naomi Gross see?
- In 2024, CMS data shows 417 Original Medicare patients and 1,840 services for Naomi Gross. This counts Original Medicare only and measures volume, not quality.
- What is Naomi Gross's NPI number?
- 1225409279. 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 Naomi Gross, 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 | 417 |
|---|---|
| Services billed to Medicare | 1,840 |
| Different services or procedures | 29 |
| Participating Medicare provider | Yes |
| Average age of these patients | 77 |
Most frequent services
- Trimming of dystrophic nails, any number (G0127)391 services
- Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more (99212)259 services
- Removal of fingernails or toenails, 1-5 nails (11720)243 services
- Removal of noncancer thickened skin growth, 2-4 growths (11056)217 services
- Removal of fingernails or toenails, 6 or more nails (11721)151 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 blood pressure75%
- High cholesterol75%
- Diabetes57%
- Chronic kidney disease45%
- Arthritis38%
- Ischemic heart disease30%
Practice locations
Addresses where Naomi Gross is enrolled with Medicare (CMS data updated October 2, 2026).
- 100 2nd AveNeedham, MA 02494 (781) 726‑4800
- 133 Brookline AveBoston, MA 02215 (617) 421‑1000
- 40 Holland StSomerville, MA 02144 (617) 629‑6000
Group practices
Medicare enrollment lists Naomi Gross as a member of this group (CMS data updated October 2, 2026).
- Atrius Health Inc1,222 clinicians in the group
Specialties
- Nurse Practitionerprimary
Other nurse practitioners in Needham
Clinicians with the same Medicare primary specialty in Needham, MA — not a recommendation.
Other clinicians in Atrius Health Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | NP |
|---|---|
| Graduation year | 2015 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1225409279 |
| 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