Quick answers
- Does Jeremy D. O'Neil accept Medicare assignment?
- Yes. Medicare's clinician data says Jeremy D. O'Neil 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 Jeremy D. O'Neil see?
- In 2024, CMS data shows 37 Original Medicare patients and 298 services for Jeremy D. O'Neil. This counts Original Medicare only and measures volume, not quality.
- What is Jeremy D. O'Neil's NPI number?
- 1932823382. 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 Jeremy D. O'Neil, 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 | 37 |
|---|---|
| Services billed to Medicare | 298 |
| Different services or procedures | 13 |
| Participating Medicare provider | Yes |
| Average age of these patients | 62 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)152 services
- Psychotherapy with evaluation and management visit, 30 minutes (90833)107 services
- Psychiatric diagnostic evaluation with medical services (90792)16 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).
- Anxiety75%
- Depression73%
- High cholesterol59%
- High blood pressure41%
- Arthritis35%
Practice locations
Addresses where Jeremy D. O'Neil is enrolled with Medicare (CMS data updated October 2, 2026).
- 228 Billerica RdChelmsford, MA 01824 (978) 250‑6000
Group practices
Medicare enrollment lists Jeremy D. O'Neil 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 Chelmsford
Clinicians with the same Medicare primary specialty in Chelmsford, 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
| Graduation year | 2022 |
|---|---|
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1932823382 |
| 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