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Emergency Medicine

Ian T. Schreiner, MD

Works at hospitals in Bristol, CT · Hartford, CT · Connecticut

Summary

Dr. Ian T. Schreiner, MD is an emergency medicine doctor at 114 Woodland St, Hartford, CT 06105. Phone: (860) 714-4000. Accepts Medicare assignment. In 2024, Ian T. Schreiner had 247 Original Medicare patients and 342 services. NPI 1184967994. 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 Ian T. Schreiner, 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 Ian T. Schreiner accept Medicare assignment?
Yes. Medicare's clinician data says Ian T. Schreiner 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 Ian T. Schreiner see?
In 2024, CMS data shows 247 Original Medicare patients and 342 services for Ian T. Schreiner. This counts Original Medicare only and measures volume, not quality.
What is Ian T. Schreiner's NPI number?
1184967994. 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 Ian T. Schreiner, 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 patients247
Services billed to Medicare342
Different services or procedures14
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)108 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only (93010)90 services
  3. Emergency department visit with moderate level of medical decision making (99284)49 services
  4. Critical care, first 30-74 minutes (99291)43 services
  5. Emergency department visit with low level of medical decision making (99283)33 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 cholesterol74%
  • Anxiety52%
  • Arthritis51%
  • Depression46%
  • Diabetes32%

Hospitals where Ian T. Schreiner works

Medicare's Facility Affiliation Data lists Ian T. Schreiner 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 Ian T. Schreiner is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ian T. Schreiner as a member of this group (CMS data updated October 2, 2026).

  • Cep America LLC1,023 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Connecticut →

Other emergency medicine doctors in Hartford

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

All emergency medicine doctors in Hartford →

Other clinicians in Cep America LLC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Rochester School Of Medicine And Dentistry
Graduation year2013 (13 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1184967994
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