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Physician Assistant

Chelsea J. Semrau

Works at hospitals in Hartford, CT · New Britain, CT · Connecticut

Summary

Chelsea J. Semrau is a physician assistant at 65 Memorial Rd, West Hartford, CT 06107. Phone: (860) 545-7330. Accepts Medicare assignment. In 2024, Chelsea J. Semrau had 62 Original Medicare patients and 141 services. NPI 1699116582. 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 Chelsea J. Semrau, 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 Chelsea J. Semrau accept Medicare assignment?
Yes. Medicare's clinician data says Chelsea J. Semrau 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 Chelsea J. Semrau see?
In 2024, CMS data shows 62 Original Medicare patients and 141 services for Chelsea J. Semrau. This counts Original Medicare only and measures volume, not quality.
What is Chelsea J. Semrau's NPI number?
1699116582. 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 Chelsea J. Semrau, 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 patients62
Services billed to Medicare141
Different services or procedures4
Participating Medicare providerYes
Average age of these patients72

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)84 services
  2. Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more (99215)25 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%
  • Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)68%
  • Arthritis37%
  • Diabetes29%
  • Anxiety29%

Hospitals where Chelsea J. Semrau works

Medicare's Facility Affiliation Data lists Chelsea J. Semrau 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 Chelsea J. Semrau is enrolled with Medicare (CMS data updated October 2, 2026).

  • 65 Memorial RdWest Hartford, CT 06107
  • 65 Memorial Rd, Fl 4West Hartford, CT 06107 (860) 545‑7330
  • 80 Fisher DrAvon, CT 06001

Group practices

Medicare enrollment lists Chelsea J. Semrau as a member of this group (CMS data updated October 2, 2026).

  • Hartford Hospital1,044 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, Connecticut →

Other physician assistants in West Hartford

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

All physician assistants in West Hartford →

Other clinicians in Hartford Hospital

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

Clinician information

Graduation year2013
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1699116582
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