Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

William Zempsky, MD

Individual provider Pediatrics Physician · NPI 1508832650

William Zempsky, MD is an Emergency Medicine in Hartford, Connecticut. Graduated from Johns Hopkins University School of Medicine in 1988, 38 years ago. Practices with Connecticut Children's Specialty Group, Inc, a 144-clinician group and accepts Medicare assignment. Licensed in Connecticut.

Years since qualifying
38
Trained at
Johns Hopkins University School of Medicine
Licensed in
CT
In the registry since
2006
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

282 Washington St
Hartford, CT 06106-3322
Phone: (860) 545-9200
Fax: (860) 545-9134
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pediatrics Physician (primary) Taxonomy 208000000X · Licence 035940 (CT)
Pediatric Emergency Medicine (Pediatrics) Physician Taxonomy 2080P0204X · Licence 035940 (CT)

Record details

NPI number1508832650
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedFebruary 28, 2006
Last updated in NPPESSeptember 23, 2022
Certification dateSeptember 23, 2022
Mailing address282 Washington St, Hartford, CT 06106-3322

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyEMERGENCY MEDICINE
Also practisesPEDIATRIC MEDICINE
Medical schoolJOHNS HOPKINS UNIVERSITY SCHOOL OF MEDICINE
Graduated 1988 (38 years in practice)
Group practice Connecticut Children'S Specialty Group, Inc — 144 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

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