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

Dr. John William Kunstman, MD

Individual provider Surgical Oncology Physician · NPI 1265666184

Dr. John William Kunstman, MD is a Surgical Oncology in New Haven, Connecticut. Graduated from University of Wisconsin School of Medicine in 2009, 17 years ago. Practices with Yale University, a 2,618-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Connecticut.

Years since qualifying
17
Trained at
University of Wisconsin School of Medicine
Licensed in
CT
In the registry since
2009
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

20 York St # T-209 Yale-New Haven Hospital
New Haven, CT 06510-3220
Phone: (203) 688-2259
Fax: (203) 688-5599
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Surgical Oncology Physician (primary) Taxonomy 2086X0206X · Licence 61821 (CT)

Record details

NPI number1265666184
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedMay 6, 2009
Last updated in NPPESAugust 29, 2018

Medicare enrollment

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

Medicare specialtySURGICAL ONCOLOGY
Also practisesGENERAL SURGERY
Medical schoolUNIVERSITY OF WISCONSIN SCHOOL OF MEDICINE
Graduated 2009 (17 years in practice)
Group practice Yale University — 2618 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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