Kate Mignosi, MD

Medicare activity in 2024

Official CMS public-use data for Kate Mignosi, 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.

Most frequent services

1. Emergency department visit with high level of medical decision making (99285)403 services
2. Emergency department visit with moderate level of medical decision making (99284)65 services
3. Critical care, first 30-74 minutes (99291)35 services
4. Emergency department visit with low level of medical decision making (99283)14 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%
• Arthritis55%
• Anxiety46%
• Chronic kidney disease41%
• Ischemic heart disease40%

Hospitals where Kate Mignosi works

Medicare's Facility Affiliation Data lists Kate Mignosi 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.

• Anna Jaques HospitalNewburyport, MA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 220029
• Lahey Hospital & Medical Center, BurlingtonBurlington, MA · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 220171
• UPMC AltoonaAltoona, PA · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 390073

Practice locations

Addresses where Kate Mignosi is enrolled with Medicare (CMS data updated October 2, 2026).

• 25 Highland AveNewburyport, MA 01950 (978) 463‑1000
• 29 Mall RdBurlington, MA 01805
• 41 Mall RdBurlington, MA 01805

Group practices

Medicare enrollment lists Kate Mignosi as a member of these groups (CMS data updated October 2, 2026).

• Lahey Clinic Inc1,381 clinicians in the group
• Newburyport Emergency Physicians, PLLC56 clinicians in the group

Specialties

• Emergency Medicineprimary

Find other Emergency Medicine doctors in Massachusetts →

Other emergency medicine doctors in Newburyport

Clinicians with the same Medicare primary specialty in Newburyport, MA — not a recommendation.

• Tariq Noohani, DO
• Megan Stultz, MD
• Matthew Smoot, DO
• Timothy Huber, DO
• Brenden Akins, MD
• Alessandro Cancelliere, MD
• Zayed Yasin, MD
• Mary Kate Hogan, MD

All emergency medicine doctors in Newburyport →

Other clinicians in Lahey Clinic Inc

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

• Leila Shayegan
• Hema Venigalla
• Amy K. Chi, MD
• Alin A. Joseph
• Paul R. Cotran, MD
• Stephanie L. Lenzi, DO

Clinician information

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

1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
6. Medicare Care Compare — official Medicare tool to look up clinicians