Quick answers
- Does Kathleen R. Rivera accept Medicare assignment?
- Yes. Medicare's clinician data says Kathleen R. Rivera 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 Kathleen R. Rivera see?
- In 2024, CMS data shows 22 Original Medicare patients and 50 services for Kathleen R. Rivera. This counts Original Medicare only and measures volume, not quality.
- What is Kathleen R. Rivera's NPI number?
- 1821281619. 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 Kathleen R. Rivera, 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 | 22 |
|---|---|
| Services billed to Medicare | 50 |
| Different services or procedures | 7 |
| Participating Medicare provider | Yes |
| Average age of these patients | 63 |
Most frequent services
- Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)18 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%
- High cholesterol68%
- Depression68%
- High blood pressure64%
Hospitals where Kathleen R. Rivera works
Medicare's Facility Affiliation Data lists Kathleen R. Rivera at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Danbury HospitalDanbury, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070033
Practice locations
Addresses where Kathleen R. Rivera is enrolled with Medicare (CMS data updated October 2, 2026).
- 15 Berkshire RdSandy Hook, CT 06482
- 24 Hospital AveDanbury, CT 06810 (203) 739‑7118
Group practices
Medicare enrollment lists Kathleen R. Rivera as a member of these groups (CMS data updated October 2, 2026).
- Nuvance Health Medical Practice Ct Inc747 clinicians in the group
- Newtown Youth and Family Services Inc4 clinicians in the group
Specialties
- Psychiatryprimary
Other psychiatrists in Connecticut
Clinicians with the same Medicare primary specialty in Connecticut — not a recommendation.
Other clinicians in Nuvance Health Medical Practice Ct Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2006 (20 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1821281619 |
| 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
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- 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