Accepting New Patients

Care That Listens Before It Treats

At the office of James H. Zellner, MD, every visit begins with a conversation — not a clock. We practice integrative family medicine in the heart of Brooklyn, blending evidence-based clinical care with the patience your health deserves.

20+
Years of Practice
Board
Certified Physician
Brooklyn
In-Person Care
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What We Offer

Comprehensive Care,
Tailored to You

Preventive Medicine

Annual physicals, age-appropriate cancer screenings, immunizations, and laboratory work designed to catch issues before they become problems.

Chronic Disease Management

Ongoing, coordinated care for hypertension, diabetes, thyroid disorders, asthma, and other long-term conditions — with regular follow-ups and medication management.

Family & Adult Medicine

From pediatric check-ups to senior wellness visits, we provide continuous care across every stage of life — for individuals and families in the Brooklyn community.

Wellness & Lifestyle Medicine

Nutrition counseling, stress management, sleep optimization, and weight management programs grounded in current clinical evidence and your personal goals.

Diagnostic Testing

On-site laboratory services including blood work, urinalysis, rapid strep and flu testing, EKGs, and coordination of specialty imaging when needed.

Same-Day & Urgent Care

When illness strikes unexpectedly — infections, minor injuries, allergic reactions — we accommodate same-day appointments for urgent but non-emergency concerns.

Medical office interior with warm lighting and modern equipment
MD
Board-certified in Family Medicine with decades of clinical experience serving the Brooklyn community.
About the Practice

A Physician Who
Knows Your Name

James H. Zellner, MD, built his practice on a conviction that effective medicine requires more than a quick consultation — it demands a sustained relationship between physician and patient.

Located on 5th Avenue in Brooklyn, our office has served families across generations. We combine the rigor of evidence-based clinical practice with the attentiveness of a physician who remembers you — your history, your concerns, and your goals.

Whether you are managing a chronic condition, navigating a new diagnosis, or simply looking for a primary care physician who treats you as a whole person, we welcome you.

Board Certified
All Ages Welcome
In-Network Plans
Brooklyn-Based
Our Philosophy

The Zellner
Approach

01

Listen First

Every appointment begins with your story. We take the time to understand your symptoms, your history, and what matters most to you.

02

Explain Clearly

Medical jargon has no place here. We translate findings into plain language so you can make informed decisions about your health.

03

Plan Together

Treatment is a partnership. We outline options, discuss risks and benefits, and build a plan that fits your life and your values.

04

Follow Through

Care doesn't end at discharge. We track outcomes, adjust plans as needed, and remain accessible between visits when you need us.

Find Us

Located in
Central Brooklyn

Map showing the location of James H. Zellner office on 5th Avenue in Brooklyn, NY

7817 5th Avenue

Brooklyn, NY 11209

Contact Information

Address
7817 5th Avenue
Brooklyn, NY 11209-3712
Office Hours
Monday – Friday: 9:00 AM – 5:00 PM
Saturday & Sunday: Closed
Get Directions on Google Maps
Get in Touch

Request an
Appointment

Fill out the form and our office staff will contact you within one business day to confirm your appointment. For immediate needs, please call us directly.

New patient welcome
Insurance information accepted at check-in
First visit includes comprehensive health assessment
Is this your business? This is my business