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Internal Medicine

Cassandra X. Constantino, MD

Works at hospitals in Newport, RI · Providence, RI · Rhode Island

Summary

Dr. Cassandra X. Constantino, MD is an internal medicine doctor at 1180 Hope St, Bristol, RI 02809. Phone: (401) 253-8900. Accepts Medicare assignment. In 2024, Cassandra X. Constantino had 215 Original Medicare patients and 540 services. NPI 1598766537. 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.

  • Specialty: Internal medicine doctor (Medicare lists Internal Medicine)
  • Address: 1180 Hope St, Bristol, RI 02809 · Directions
  • Phone: (401) 253‑8900
  • Medicare: Accepts Medicare assignment
  • Hospitals: Newport Hospital, The Miriam Hospital
  • Group practice: Medical Associates of Ri, Inc.
  • Medical school: graduated 1994 (32 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Cassandra X. Constantino, 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 Cassandra X. Constantino accept Medicare assignment?
Yes. Medicare's clinician data says Cassandra X. Constantino 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 Cassandra X. Constantino see?
In 2024, CMS data shows 215 Original Medicare patients and 540 services for Cassandra X. Constantino. This counts Original Medicare only and measures volume, not quality.
What is Cassandra X. Constantino's NPI number?
1598766537. 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 Cassandra X. Constantino, 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 patients215
Services billed to Medicare540
Different services or procedures32
Participating Medicare providerYes
Average age of these patients74

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)143 services
  2. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)135 services
  3. Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)88 services
  4. Administration of influenza virus vaccine (G0008)34 services
  5. Influenza vaccine split virus, preservative free (90662)29 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%
  • Arthritis45%
  • Anxiety32%
  • Diabetes28%
  • Osteoporosis21%

Hospitals where Cassandra X. Constantino works

Medicare's Facility Affiliation Data lists Cassandra X. Constantino 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.

  • Newport HospitalNewport, RI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 410006
  • The Miriam HospitalProvidence, RI · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 410012

Practice locations

Addresses where Cassandra X. Constantino is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Cassandra X. Constantino as a member of this group (CMS data updated October 2, 2026).

  • Medical Associates of Ri, Inc.32 clinicians in the group

Specialties

Find other Internal Medicine doctors in Rhode Island →

Other internal medicine doctors in Bristol

Clinicians with the same Medicare primary specialty in Bristol, RI — not a recommendation.

All internal medicine doctors in Bristol →

Other clinicians in Medical Associates of Ri, Inc.

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

Clinician information

CredentialMD
Graduation year1994 (32 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1598766537
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