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

Dr. William O Hartzell, MD

Individual provider Pulmonary Disease Physician · NPI 1417938986

Dr. William O Hartzell, MD is a Pulmonary Disease in Westborough, Massachusetts. Graduated from University of Virginia School of Medicine in 1992, 34 years ago. Licensed in Virginia.

Years since qualifying
34
Trained at
University of Virginia School of Medicine
Licensed in
VA
In the registry since
2005
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

150 Flanders Rd
Westborough, MA 01581-1017
Phone: (508) 871-2000
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Pulmonary Disease Physician (primary) Taxonomy 207RP1001X · Licence 0101239857 (VA)

Record details

NPI number1417938986
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 10, 2005
Last updated in NPPESFebruary 18, 2019

Medicare enrollment

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

Medicare specialtyPULMONARY DISEASE
Also practisesCRITICAL CARE (INTENSIVISTS)
Medical schoolUNIVERSITY OF VIRGINIA SCHOOL OF MEDICINE
Graduated 1992 (34 years in practice)
Accepts Medicare assignment Not indicated

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