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Internal Medicine

Nora O. Segar, MD

Works at hospitals in New Haven, CT · Connecticut

Summary

Dr. Nora O. Segar, MD is an internal medicine doctor at 1450 Chapel St, New Haven, CT 06511. Phone: (203) 789-3200. Accepts Medicare assignment. In 2024, Nora O. Segar had 66 Original Medicare patients and 305 services. NPI 1548559750. 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: 1450 Chapel St, New Haven, CT 06511 · Directions
  • Phone: (203) 789‑3200
  • Medicare: Accepts Medicare assignment
  • Hospital: Yale-New Haven Hospital
  • Group practice: Northeast Medical Group Inc
  • Medical school: Icahn School Of Medicine At Mount Sinai · graduated 2011 (15 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Nora O. Segar, 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 Nora O. Segar accept Medicare assignment?
Yes. Medicare's clinician data says Nora O. Segar 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 Nora O. Segar see?
In 2024, CMS data shows 66 Original Medicare patients and 305 services for Nora O. Segar. This counts Original Medicare only and measures volume, not quality.
What is Nora O. Segar's NPI number?
1548559750. 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 Nora O. Segar, 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 patients66
Services billed to Medicare305
Different services or procedures14
Participating Medicare providerYes
Average age of these patients79

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes (99233)126 services
  2. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)42 services
  3. Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes (99223)34 services
  4. Advance care planning, first 30 minutes (99497)16 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 disease67%
  • Depression67%
  • Anxiety65%
  • Arthritis64%

Hospitals where Nora O. Segar works

Medicare's Facility Affiliation Data lists Nora O. Segar 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.

Practice locations

Addresses where Nora O. Segar is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Nora O. Segar as a member of this group (CMS data updated October 2, 2026).

  • Northeast Medical Group Inc1,360 clinicians in the group

Specialties

Find other Internal Medicine doctors in Connecticut →

Other internal medicine doctors in New Haven

Clinicians with the same Medicare primary specialty in New Haven, CT — not a recommendation.

All internal medicine doctors in New Haven →

Other clinicians in Northeast Medical Group Inc

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

Clinician information

CredentialMD
Medical schoolIcahn School Of Medicine At Mount Sinai
Graduation year2011 (15 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1548559750
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