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Dr. Jeffrey Elfenbein, D.O.

Concierge Internal Medicine physician, Seaford, NY

Dr. Jeffrey Elfenbein

Dr. Jeffrey Elfenbein is a physician board certified in internal medicine who launched one of Seaford's first concierge internal medicine practices.

3921 Merrick Rd, Seaford, NY 11783
At a glance
Practice model
Concierge internal medicine for adults
Board certification
Internal medicine
Visit length
30-minute visits, 60-minute annual assessments
Individual membership
$2,000 billed annually

Facts on this page last checked October 2026. How we check doctors

About Dr. Elfenbein

Dr. Jeffrey Elfenbein is a physician board certified in internal medicine who provides concierge primary care to adults. He launched one of Seaford's first concierge internal medicine practices. He focuses on mind-body medicine and its effect on chronic pain, fibromyalgia, anxiety and depression, and he is inspired by the work of Dr. John Sarno.

He also offers tailored, evidence-based care for patients with obesity and metabolic challenges. He earned his Doctor of Osteopathy degree from Philadelphia College of Osteopathic Medicine in 1990. He also holds a Bachelor of Arts from Adelphi University. He trained in internal medicine at Maricopa Medical Center.

His approach stresses availability, personalized treatment plans and clear communication.

My goal is to understand the whole person so I can provide care that is personalized, proactive, and deeply human.
Dr. Jeffrey Elfenbein

Membership and fees

The practice limits its size, so members get 60-minute annual health assessments, 30-minute visits that are not rushed, and little or no waiting.

Individual concierge membership at the practice is $500 billed quarterly, $1,000 billed twice a year or $2,000 billed annually.

Couples membership is $900 billed quarterly, $1,800 billed twice a year or $3,600 billed annually, and dependent membership is $500 a year for each child of enrolled members who is between 18 and 26 as of the date of enrollment.

Members get same-day or next-day appointments, including for acute issues, and direct communication by cell phone after hours.

Fees vary by plan. Ask the practice.

Services

Mind-body medicine Chronic pain Fibromyalgia Anxiety Depression Obesity care Metabolic challenges Concierge primary care for adults
What internal medicine doctors commonly treat

Education and credentials

Degree
Doctor of Osteopathy (DO)
College
Adelphi University (Bachelor of Arts)
Medical school
Philadelphia College of Osteopathic Medicine, 1990
Internship
Osteopathic rotating internship, Humana Hospital Pembroke
Residency
Internal medicine, Maricopa Medical Center
Board certification
Internal medicine
License
Arizona
NPI
1043308695

Hospital and practice affiliations

Northwell Health - Syosset Hospital in Syosset

Location

3921 Merrick Rd, Seaford, NY 11783
Dr. Jeffrey Elfenbein practice page
Directions

Recognition and research

Media and books

Featured in Seaford Patch.

Patient reviews

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Questions patients ask

Does Dr. Elfenbein offer a membership?

The practice is a concierge internal medicine practice with individual, couples and dependent memberships.

How much does a membership at Dr. Elfenbein's practice cost?

Individual membership is $500 billed quarterly, $1,000 billed twice a year or $2,000 billed annually. Couples membership is $900 billed quarterly, $1,800 billed twice a year or $3,600 billed annually.

Is Dr. Elfenbein board certified?

Dr. Elfenbein is board certified in internal medicine.

Where did Dr. Elfenbein train?

He earned his Doctor of Osteopathy degree from Philadelphia College of Osteopathic Medicine in 1990. He completed an internal medicine internship and residency at Maricopa Medical Center.

Where is Dr. Elfenbein's office?

Dr. Elfenbein's concierge internal medicine practice is in Seaford, NY.

What does Dr. Elfenbein focus on?

He focuses on mind-body medicine and its impact on chronic pain, fibromyalgia, anxiety and depression. He also offers care for patients with obesity and metabolic challenges.

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