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About

The Cambridge Health Alliance (CHA) is a nonprofit healthcare system and Harvard Teaching Hospital serving Cambridge, Somerville, and north of Boston, MA. It provides primary and specialty care, mental health/substance use services, and has two acute care hospitals plus affiliated clinics. CHA operates as a public care system with teaching affiliations to Harvard Medical School and Tufts University School of Medicine, and maintains a 24-hour emergency department at two locations. Key contact details: main phone 617-665-1000, offices at 230 Highland Ave (Somerville), 103 Garland St (Everett), and 1493 Cambridge St (HQ, Cambridge). For occupational health specifics, CHA offers services under its broader care system, including medical specialties, orthopedics, physical therapy, radiology, and occupational health programs as part of its community health and hospital services.

Clinic Type

Occupational Medicine

Address

1 Cabot Rd, 2nd Floor, Medford, MA 02155

Phone

617-591-4660

Email

webmaster@challiance.org

Opening Hours

Monday - Friday 8:30 am - 5 pm

Services Offered

  • Disability Management
  • DOT Physical Exams
  • Ergonomic Assessments
  • FAA Pilot Exams
  • Immigration Exams
  • Medical Clinics, Flu Clinics and More
  • Orthopedic Consults
  • Physical and Occupational Therapy
  • Pre-Employment Services and Exams
  • Screenings
  • Travel Medicine Clinic
  • Workplace Injuries - Urgent Care and Treatment (including chemical and toxic exposures)
  • X-rays
  • Yellow Fever Vaccinations
  • Clinical supervision for on-site Employee Health services
  • Consultation services
  • Evaluations for chemical and bio-hazard exposures
  • Program development for Vivarium and research staff
  • Support for Institutional Biosafety Committees (IBCs) and attendance at meetings
  • Development of pre-hire medical surveillance screening programs for employees and on-site vendors
  • Collaboration with Environmental Health and Safety agencies
  • Disability Management interface with managers and supervisors to facilitate appropriate return to work for work/non-work related cases

Team

  • Stefanos Kales, MD, MPH, FACP, FACOEM — Medical Director
  • Dr. Russell Tontz, board-certified in Occupational Medicine, Aerospace Medicine and Family Medicine — Physician

Insurance & Payment

Call 617-591-4660, request an appointment online

Languages Spoken

FAQs

What are the hours and how can I book an appointment?

Monday - Friday 8:30 am - 5 pm. Call 617-591-4660 or request an appointment online.

What services are offered by CHA Occupational Health?

DOT Physicals, FAA Pilot Exams, Travel Medicine, Immigration exams, Disability Management, Ergonomic Assessments, Medical Clinics, Flu Clinics, Orthopedic Consults, Physical and Occupational Therapy, Pre-Employment Services and Exams, Screenings, Travel Medicine Clinic, Workplace Injuries - Urgent Care and Treatment, X-rays, Yellow Fever Vaccinations and more.

Where can I find CHA Occupational Health locations?

CHA One Cabot Care Center is located at 1 Cabot Rd, 2nd Floor, Medford, MA 02155.

Who is featured in the CHA Occupational Health profile?

Meet Dr. Stefanos Kales, recipient of the 2024 Excellence in Mentoring Award from the American College of Occupational and Environmental Medicine.

Photos

What Patients Say

Overall sentiment across review platforms: mixed

  • Birdeye: 4.2 out of 5 stars (1,375 reviews (for CHA Cambridge Hospital broadly))

Patients praise

  • professional care for occupational exams (e.g., DOT, public safety)
  • specialized expertise for first responders and biotech employees
  • convenient location and access to services

Common complaints

  • billing and coding confusion
  • perceived lack of responsiveness from patient relations

"The doctors that I spoke to listened to my concerns and gave me good advice and guidance regarding returning to sport during my recovery from my injury."

Birdeye user review

"I was charged $ 400++ (before insurance coverage) for what was coded as «office visit» when it was supposed to be a «Physical» exam."

Unilocal user review

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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