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Your Trusted Endocrinologist in Syosset, NY
Alla Khalfin, DO is a board-certified endocrinologist with over two decades of experience in diagnosing and treating complex endocrine disorders. Our practice in Syosset, New York combines advanced medical expertise with personalized care, addressing conditions such as diabetes, thyroid disorders, metabolic syndrome, and obesity. Dr. Khalfin holds dual certifications from the American Board of Internal Medicine in Endocrinology, Diabetes, and Metabolism, as well as Internal Medicine, ensuring comprehensive understanding of systemic health impacts. We utilize cutting-edge diagnostic tools like the InBody body composition analyzer to provide precise assessments of muscle, fat, and water distribution, enabling targeted treatment plans. Our team includes a certified nutritionist who collaborates on evidence-based weight management strategies tailored to individual needs.

With formal training from prestigious institutions including New York College of Osteopathic Medicine and New York Medical College, we maintain active memberships in leading professional organizations such as the American Association of Clinical Endocrinologists. Our approach emphasizes thorough patient education, active listening, and developing long-term healthcare partnerships. We accept most major insurance providers and offer flexible payment options through CareCredit for aesthetic services. Telehealth consultations ensure continued access to specialized care while minimizing exposure risks. Patient testimonials consistently highlight our compassionate care, clinical expertise, and commitment to achieving optimal health outcomes.
Services
Diabetes Management Thyroid Treatment Weight Loss Programs Hormone Therapy Body Composition Analysis Laser Hair Removal Skin Rejuvenation Microneedling PRP Injections Nutrition Counseling
Highlights and features
  • We offer board-certified expertise in endocrinology with 20+ years of clinical experience
  • Our practice combines advanced diagnostics with personalized treatment planning
  • We provide integrated care through collaboration with a certified nutritionist
  • Our team maintains active memberships in leading endocrinology professional organizations
  • We offer telehealth services for continued care accessibility
Associations and certifications
  • American Board of Internal Medicine
What people say
Thorough consultations Compassionate care Effective treatment Knowledgeable staff Personalized approach
Services
Diabetes Management
Our comprehensive diabetes care combines advanced diagnostics with personalized treatment plans to optimize blood sugar control and prevent complications. We utilize the InBody body composition analyzer to assess metabolic health indicators and tailor interventions. Patients receive ongoing education about nutrition, medication management, and lifestyle modifications to achieve long-term glycemic stability.
Thyroid Treatment
Specialized evaluation and management of thyroid disorders including hypothyroidism, hyperthyroidism, and nodules. We employ precise diagnostic testing and ultrasound imaging to determine optimal treatment strategies. Care plans may include medication management, nutritional support, and regular monitoring to maintain hormonal balance and alleviate symptoms.
Body Composition Analysis
The InBody analyzer provides detailed 60-second assessments of body fat percentage, muscle distribution, and fluid balance. This technology enables precise tracking of metabolic health and progress toward wellness goals. Results include customized reports highlighting areas for improvement and guiding targeted interventions for improved body composition.
Weight Loss Programs
Evidence-based weight reduction plans combine endocrinological expertise with nutritional counseling to address hormonal and metabolic factors. We develop individualized strategies incorporating dietary modifications, behavioral therapy, and medical support when appropriate. Regular progress monitoring ensures sustainable, healthy weight loss outcomes.
Skin Rejuvenation
Advanced aesthetic services including Forma skin tightening and Lumecca IPL photofacial address signs of aging and sun damage. These non-invasive treatments stimulate collagen production and improve skin texture through controlled thermal energy. Personalized protocols target specific concerns like fine lines, pigmentation, and uneven tone.
People
Alla Khalfin, DO
Board-Certified Endocrinologist
Dr. Khalfin specializes in endocrinology with dual board certifications in Internal Medicine and Endocrinology, Diabetes, and Metabolism. She completed fellowship training at New York Medical College and has practiced in Syosset for over 15 years, focusing on personalized hormone management and metabolic health.
Julie Skulikidis, FNP-C
Family Nurse Practitioner
Julie provides primary care services with specialization in family health and chronic disease management. She holds advanced certification in primary care nursing and collaborates with Dr. Khalfin on comprehensive patient treatment plans.
Questions
What endocrinology services do you offer?
We treat diabetes, thyroid disorders, metabolic syndrome, PCOS, osteoporosis, and hormonal imbalances using evidence-based approaches tailored to individual needs.
Do you accept insurance?
Yes, we accept most major insurance providers including Aetna, Blue Cross Blue Shield, Cigna, and Medicare. Please bring your insurance card to appointments.
Are telehealth visits available?
Yes, we offer secure telemedicine consultations for existing patients. Most major insurers cover these virtual visits during the pandemic.
What aesthetic treatments are available?
We offer laser hair removal, skin rejuvenation with Forma and Lumecca, microneedling with Morpheus8, and PRP injections for facial rejuvenation.
How do I schedule a body composition analysis?
Contact our office at 516-206-4266 to book an appointment. The 1-minute InBody test includes a detailed printout explaining your muscle, fat, and water distribution.