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Otolaryngology

Catherine A. Colaianni, MD

Works at hospitals in Raleigh, NC · Chapel Hill, NC · North Carolina

Summary

Dr. Catherine A. Colaianni, MD is an ENT doctor at 101 Manning Dr, Chapel Hill, NC 27514. Phone: (984) 974-1000. Accepts Medicare assignment. In 2024, Catherine A. Colaianni had 37 Original Medicare patients and 81 services. NPI 1427307644. 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: ENT doctor (Medicare lists Otolaryngology)
  • Address: 101 Manning Dr, Chapel Hill, NC 27514 · Directions
  • Phone: (984) 974‑1000
  • Medicare: Accepts Medicare assignment
  • Hospitals: Rex Hospital, UNC Hospitals
  • Group practice: University of North Carolina at Chapel Hill
  • Medical school: Johns Hopkins University School Of Medicine · graduated 2015 (11 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Catherine A. Colaianni, 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 Catherine A. Colaianni accept Medicare assignment?
Yes. Medicare's clinician data says Catherine A. Colaianni 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 Catherine A. Colaianni see?
In 2024, CMS data shows 37 Original Medicare patients and 81 services for Catherine A. Colaianni. This counts Original Medicare only and measures volume, not quality.
What is Catherine A. Colaianni's NPI number?
1427307644. 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 Catherine A. Colaianni, 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 patients37
Services billed to Medicare81
Different services or procedures24
Participating Medicare providerYes
Average age of these patients71

Most frequent services

  1. New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more (99204)17 services
  2. Diagnostic exam of voice box using a flexible endoscope (31575)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 pressure70%
  • High cholesterol62%
  • Anxiety43%
  • Arthritis41%
  • Depression41%
  • Diabetes32%

Hospitals where Catherine A. Colaianni works

Medicare's Facility Affiliation Data lists Catherine A. Colaianni 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.

  • Rex HospitalRaleigh, NC · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 340114
  • UNC HospitalsChapel Hill, NC · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 340061

Practice locations

Addresses where Catherine A. Colaianni is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Catherine A. Colaianni as a member of this group (CMS data updated October 2, 2026).

  • University of North Carolina at Chapel Hill2,052 clinicians in the group

Specialties

Find other Otolaryngology doctors in North Carolina →

Other ENT doctors in Chapel Hill

Clinicians with the same Medicare primary specialty in Chapel Hill, NC — not a recommendation.

All ENT doctors in Chapel Hill →

Other clinicians in University of North Carolina at Chapel Hill

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

Clinician information

CredentialMD
Medical schoolJohns Hopkins University School Of Medicine
Graduation year2015 (11 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1427307644
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