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Nurse Practitioner

Jessica M. Sliwoski, NP

Works at hospitals in Rochester, NH · Portsmouth, NH · New Hampshire

Summary

Jessica M. Sliwoski, NP is a nurse practitioner at 333 Borthwick Ave, Portsmouth, NH 03801. Phone: (603) 436-5110. Accepts Medicare assignment. In 2024, Jessica M. Sliwoski had 65 Original Medicare patients and 87 services. NPI 1205685963. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Jessica M. Sliwoski, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Jessica M. Sliwoski accept Medicare assignment?
Yes. Medicare's clinician data says Jessica M. Sliwoski 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 Jessica M. Sliwoski see?
In 2024, CMS data shows 65 Original Medicare patients and 87 services for Jessica M. Sliwoski. This counts Original Medicare only and measures volume, not quality.
What is Jessica M. Sliwoski's NPI number?
1205685963. 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 Jessica M. Sliwoski, 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 patients65
Services billed to Medicare87
Different services or procedures9
Participating Medicare providerYes
Average age of these patients75

Most frequent services

  1. Critical care, first 30-74 minutes (99291)50 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)26 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%
  • Ischemic heart disease66%
  • Heart failure54%
  • Arthritis51%
  • Diabetes48%

Hospitals where Jessica M. Sliwoski works

Medicare's Facility Affiliation Data lists Jessica M. Sliwoski 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.

  • Frisbie Memorial HospitalRochester, NH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 300014
  • Portsmouth Regional HospitalPortsmouth, NH · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 300029

Practice locations

Addresses where Jessica M. Sliwoski is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Jessica M. Sliwoski as a member of this group (CMS data updated October 2, 2026).

  • Intensive Care Consortium Inc496 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, New Hampshire →

Other nurse practitioners in Portsmouth

Clinicians with the same Medicare primary specialty in Portsmouth, NH — not a recommendation.

All nurse practitioners in Portsmouth →

Other clinicians in Intensive Care Consortium Inc

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

Clinician information

CredentialNP
Graduation year2023
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1205685963
CorrectionsReport 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

  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