John William Kunstman, MD

Surgical Oncology Surgery

Surgery

John William Kunstman is a Surgical Oncology Surgery specialist based in New Haven, CT with over 17 years of clinical experience. Offers virtual telehealth visits.

(203) 688-2259New Haven, CT
Telehealth Available
NPI Active per CMS — Q2 2026

John William Kunstman, MD has been part of the New Haven medical community since 2009 in independent practice. He graduated from University of Wisconsin School of Medicine in 2009 and has 17+ years of clinical experience. He regularly sees Medicare patients with hypertension, high cholesterol, and arthritis (per CMS claims data).

1 of 7 Surgery providers in CTSee all Surgery in New Haven17+ years experienceNPI since 2009

Older · 2825dNPPES updated 2018-08-29 · verify NPI on CMS · Verify license at Connecticut Medical Examining Board

Contact & Location

Practice Location

20 York St # T-209 Yale-New Haven Hospital, New Haven, CT 06510-3220

Fax: (203) 688-5599
Patient Condition Panel

What This Doctor Treats Most

Based on Medicare claims data — here's what patients commonly see this doctor for

Based on Medicare data, this doctor primarily manages Hypertension, High Cholesterol, and Arthritis.

Hypertension
Higher than avg (+5%)75%

High blood pressure — a leading risk factor for heart disease and stroke

US avg: 70.2%

↑ More patients than average (+5%) — a focus area for this doctor

High Cholesterol
Lower than avg (-2%)68%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

↓ Fewer patients than average (-2%) — less common here

Arthritis
Higher than avg (+3%)52%

Joint inflammation causing pain, swelling, and stiffness

US avg: 49.3%

↑ More patients than average (+3%) — a focus area for this doctor

Diabetes
Higher than avg (+4%)38%

A condition where the body cannot properly regulate blood sugar levels

US avg: 34.5%

↑ More patients than average (+4%) — a focus area for this doctor

Cancer
Higher than avg (+9%)30%

Diseases involving abnormal cell growth with potential to spread to other body parts

US avg: 20.8%

↑ More patients than average (+9%) — a focus area for this doctor

Ischemic Heart Disease
Lower than avg (-3%)29%

Reduced blood flow to the heart muscle, commonly known as coronary artery disease

US avg: 31.7%

↓ Fewer patients than average (-3%) — less common here

Anxiety Disorders
Lower than avg (-5%)29%

Excessive worry or fear that interferes with daily life

US avg: 34.1%

↓ Fewer patients than average (-5%) — less common here

Mood Disorders
24%

Conditions affecting emotional state, including depression and bipolar disorder

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. Graduated medical school · 2009

    University of Wisconsin School of Medicine

  2. 17 years in practice

    Experienced

SurgerySurgical Oncology in New HavenAllopathic & Osteopathic Physicians

A surgical oncologist is a well-qualified surgeon who has obtained additional training and experience in the multidisciplinary approach to the prevention, diagnosis, treatment, and rehabilitation of cancer patients, and devotes a major portion of his or her professional practice to these activities and cancer research.

Taxonomy: 2086X0206X

Education & Training

University of Wisconsin School of Medicine (Class of 2009)

Virtual Surgical Oncology Care With John William Kunstman

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with John William Kunstman for blood pressure monitoring, cholesterol management, arthritis follow-ups — no travel to New Haven required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes.

Frequently Asked Questions

Common questions about John William Kunstman

NPI records show Dr. Kunstman as active with telehealth listed in New Haven, CT. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (203) 688-2259.

Verified across 4 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. See Data Methodology.

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Claim Profile

Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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