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Emergency Medicine

Elena Kozlova, DO

Works at hospitals in Danbury, CT · Connecticut

Summary

Dr. Elena Kozlova, DO is an emergency medicine doctor at 21 Elm St, New Milford, CT 06776. Phone: (860) 350-7217. Accepts Medicare assignment. In 2024, Elena Kozlova had 409 Original Medicare patients and 437 services. NPI 1992236228. 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: Emergency medicine doctor (Medicare lists Emergency Medicine)
  • Address: 21 Elm St, New Milford, CT 06776 · Directions (1 more location)
  • Phone: (860) 350‑7217
  • Medicare: Accepts Medicare assignment
  • Hospital: Danbury Hospital
  • Group practice: Danbury Hospital
  • Medical school: New York College Of Osteo Medicine Of New York Institute Of Technology · graduated 2017 (9 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Elena Kozlova, 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 Elena Kozlova accept Medicare assignment?
Yes. Medicare's clinician data says Elena Kozlova 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 Elena Kozlova see?
In 2024, CMS data shows 409 Original Medicare patients and 437 services for Elena Kozlova. This counts Original Medicare only and measures volume, not quality.
What is Elena Kozlova's NPI number?
1992236228. 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 Elena Kozlova, 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 patients409
Services billed to Medicare437
Different services or procedures17
Participating Medicare providerYes
Average age of these patients79

Most frequent services

  1. Emergency department visit with high level of medical decision making (99285)288 services
  2. Emergency department visit with moderate level of medical decision making (99284)69 services
  3. Critical care, first 30-74 minutes (99291)54 services
  4. Emergency department visit with low level of medical decision making (99283)13 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%
  • Arthritis52%
  • Ischemic heart disease45%
  • Anxiety37%
  • Chronic kidney disease37%

Hospitals where Elena Kozlova works

Medicare's Facility Affiliation Data lists Elena Kozlova 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.

  • Danbury HospitalDanbury, CT · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 070033

Practice locations

Addresses where Elena Kozlova is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Elena Kozlova as a member of this group (CMS data updated October 2, 2026).

  • Danbury Hospital50 clinicians in the group

Specialties

Find other Emergency Medicine doctors in Connecticut →

Other emergency medicine doctors in New Milford

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

All emergency medicine doctors in New Milford →

Other clinicians in Danbury Hospital

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

Clinician information

CredentialDO
Medical schoolNew York College Of Osteo Medicine Of New York Institute Of Technology
Graduation year2017 (9 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1992236228
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