A medical license is required for a doctor to practice medicine in a particular state. Requirements vary by state but most require, at a minimum, post-graduate training in the doctor’s specific specialty. An NPI number is a national identifier unique to an individual health care provider and is managed by the Center for Medicare & Medicaid Services (CMS).
Learn more about Dr. Sarah Haessler:
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The overall average patient rating of Dr. Sarah Haessler is Excellent.
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Specialties & Research
Dr. Sarah Haessler, MD is board certified in Internal Medicine and Infectious Disease.
Education & Awards
Dr. Haessler graduated from George Washington University.
Dr. Haessler has 6 hospital affiliations:
- Baystate Medical Center
- Baystate Mary Lane Hospital
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- Additional Information
- Dr. Sarah Haessler MD is a female Internist, has 12 years of experience and practices in Internal Medicine and Infectious Disease.
- Where does Dr. Sarah Haessler practice?
- Dr. Sarah Haessler has 3 office locations.
Dr. Sarah Haessler practices Internal Medicine and Infectious Disease near Springfield, MA.
See Springfield Internists and Springfield Infectious Disease Doctors.