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About

Hartford HealthCare Heart & Vascular Institute - Cardiology - Manchester is a cardiology clinic located at 376 Tolland Turnpike Suite 101 in Manchester, CT. The clinic offers cardiology and cardiovascular medicine services and accepts numerous insurance plans including Aetna, Anthem, BCBS Medicare, Cigna Healthcare, Oxford Health Plans, and United Healthcare.

Clinic Type

Cardiovascular Medicine

Address

Hartford HealthCare Heart & Vascular Institute - Cardiology - Manchester, 376 Tolland Turnpike Suite 101, Manchester, CT 06040

Phone

+1 860-522-5712

Email

—

Opening Hours

Not published — contact the clinic to confirm hours.

Emergency Care

11 In an emergency, call 911

Services Offered

  • Cardiology
  • Cardiovascular Medicine

Team

  • Steven Michael Borer — DO, FACC, DipABLM
  • Sachiko Ruwet Butera — APRN, DNP
  • Chad Conner — MD, FACC

Insurance & Payment

  • Aetna
  • Anthem
  • BCBS Medicare
  • CarePartners of Connecticut
  • Cigna Healthcare
  • Colonial Cooperative Care
  • Community Health Network of Connecticut, Inc.
  • Connecticare
  • Connecticare Commercial
  • Connecticare Medicare
  • Corvel
  • Coventry
  • Essence Healthcare
  • Evercare
  • First Health Group Corp.
  • Focus
  • Health Connecticut
  • Health Direct
  • Health New England
  • Healthy Connecticut
  • HMC/ Northeast Healthcare
  • Medspan Commercial
  • Medspan Medicare
  • Northeast Health Direct
  • One Health Plan/ Great-West Healthcare
  • Oxford Health Plans
  • Prime Health Services
  • Private Health Care Systems, Inc.
  • Senior Whole Health
  • United Healthcare
  • WellCare of Connecticut, Inc.

Languages Spoken

—

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Healthgrades (Dr. Hazar Dahhan): 4.8 stars (35 ratings)
  • Yelp (Hartford HealthCare Medical Group overall): 1.7 stars (159 reviews)
  • Birdeye (The Hoffman Heart and Vascular Institute): 4.6 stars (45 reviews)

Patients praise

  • Many individual cardiologists receive high ratings for medical expertise and knowledge
  • Patients report positive experiences with caring, thorough physicians who take time to explain conditions

Common complaints

  • Complaints regarding staff behavior, including reports of being rude, patronizing, or dismissive
  • Difficulties with appointment scheduling and rescheduling
  • Concerns about patient-centered communication and lack of compassion

"Dr. Dahhan did not give up on finding out what my chest pain and pressure was from... She is the best cardio doctor around. She cares about her patients and is very knowledgeable."

— Healthgrades reviewer

"There are consistent complaints about staff rudeness and a lack of patient-centered communication."

— of patient reviews for Cardiology services in Manchester

Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].

Information sourced from the clinic's website as of July 11, 2026.

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Manchester, CT·Cardiovascular Medicine

- Location: 376 Tolland Turnpike, Suite 101, Manchester, CT. - Organization: Hartford HealthCare Medical Group, a nonprofit, multi-specialty medical group and part of Hartford HealthCare’s extensive Connecticut health system. - Services/focus: Primary care and specialty physician services across Hartford HealthCare’s network; part of a larger system including hospitals, home care, senior services, and rehabilitation networks. - Key context: The Medical Group is one of CT’s largest multi-specialty practices with locations statewide and integrated within Hartford HealthCare’s network, emphasizing cancer, heart/vascular, neuroscience, orthopedics, and urology through its institute model. - Contact/identity: Headquarters in Hartford, CT; main homepage: hartfordhealthcare.org/locations-partners; Aliases: Hartford HealthCare Medical Group.

Emergency care

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