Quick answers
- Does Katie M. McNamara accept Medicare assignment?
- Yes. Medicare's clinician data says Katie M. McNamara 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 Katie M. McNamara see?
- In 2024, CMS data shows 66 Original Medicare patients and 132 services for Katie M. McNamara. This counts Original Medicare only and measures volume, not quality.
- What is Katie M. McNamara's NPI number?
- 1245663756. 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 Katie M. McNamara, 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 | 66 |
|---|---|
| Services billed to Medicare | 132 |
| Different services or procedures | 27 |
| Participating Medicare provider | Yes |
| Average age of these patients | 73 |
Most frequent services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)62 services
- Bacterial colony count, urine (87086)11 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 pressure67%
- Arthritis47%
- Depression38%
- Anxiety32%
- Ischemic heart disease29%
Practice locations
Addresses where Katie M. McNamara 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
- 36 Shops at 5 WayPlymouth, MA 02360 (774) 608‑3700
Group practices
Medicare enrollment lists Katie M. McNamara 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 | 2013 |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1245663756 |
| 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