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Peconic Bay Medical Group's Primary Care Specialists

A personal doctor for every member of your family

The East End's choice for primary care

Peconic Bay Medical Center's network of community-based physician practices is your connection to a comprehensive continuum of care that includes experienced primary care physicians trained and board-certified in family medicine, pediatrics, internal medicine, obstetrics, and gynecology.

  • Convenient Locations
  • Fast Appointments
  • Accepting New Patients Daily
  • Most health insurance plans, Medicare & Medicaid accepted

Family Physician is concerned with the total healthcare of the individual and the family and is trained to diagnose and treat a wide variety of ailments in patients of all ages. The Family Physician receives a broad range of training that includes adult medicine and care of the aged, the care of children, women's health, maternity care, preventive medicine and behavioral science. Special emphasis is placed on the primary care of families, utilizing consultants and community resources when appropriate—American Board of Medical Specialties.

Pediatrician is a physician specializing in the physical, emotional, and social health of children from birth to young adulthood. Care encompasses a broad spectrum of health services ranging from preventive healthcare to the diagnosis and treatment of acute and chronic diseases. The Pediatrician deals with biological, social and environmental influences on the developing child, and with the impact of disease and dysfunction on development—American Board of Medical Specialties.

Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and the digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs—American Board of Medical Specialties

An Obstetrician/Gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women—American Board of Medical Specialties.


Peconic Bay Medical Group physicians who practice in this specialty include:

Janet Baldasare, NP

Phone: 631-727-1818

1333 Roanoke Avenue
Riverhead, New York 11901
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Luigi Buono, DO

Phone: 631-298-2030

7905 Main Road
Mattituck, New York 11952
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32845 Main Road
Suite A
Cutchogue, New York 11935
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Board-Certified by the American Board of Family Practice, Dr. Buono has been providing compassionate primary medical care to the families on the East End since 1994.

To continue to provide the high level of personal, attentive care for which he is known, Dr. Buono's practice includes a team of top-notch practitioners:

  • Patricia Sondgeroth, PA
  • James Earl, NP
  • Denise Karavas, PA

The practice welcomes new patients. Waiting times for appointments are typically short. Every effort is made to accommodate patients' schedules for scheduling school physicals, vaccinations and routine screenings. Most insurance plans, Medicare and Medicaid are accepted.

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Afzal M. Butt, MD

Phone: 631-727-1600

34 Commerce Drive
Suite 1
Riverhead, New York 11901
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Board-certified in Internal Medicine, Dr. Butt also has extensive experience in emergency and urgent care medicine. He has been a resident of the Riverhead area for more than 20 years.

Dr. Butt welcomes new patients. Waiting times for appointments are typically short. Every effort is made to accommodate patients' schedules for scheduling school and work physicals, vaccinations and screenings. Most insurance plans, Medicare and Medicaid are accepted.

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Cynthia Carlson, MD

Phone: (631) 929-1256

54 Woodville Road
Shoreham, NY 11786
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Board-Certified in Family Medicine, Dr. Carlson has been providing compassionate primary medical care to the families on the East End since 1998. In addition to her medical practice, Dr. Carlson's experience includes tenure as Chief Resident and Clinical Assistant Professor in the Department of Family Medicine at the Stony Brook University Hospital and Medical Center.

Committed to providing the highest standards of personal, attentive care, Dr. Carlson is joined in her practice by a team of top-notch practitioners that includes Danielle Stoebe, PA.

Dr. Carlson welcomes new patients. Waiting times for appointments are typically short. Every effort is made to accommodate patients' schedules for scheduling school physicals, vaccinations and routine screenings. Most insurance plans, Medicare and Medicaid are accepted.

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Julia Chachere, CNM, NP, MPH

Phone: (631) 405-3235

32845 Main Road
Cutchogue, New York 11935
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80 E. Montauk Highway
Hampton Bays, New York 11946
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230 Main Street
Greenport, New York 11944
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Julia Chachere brings more than 30 years of professional experience and certified expertise to Peconic Bay Medical Center’s Cutchogue practice in the areas of women’s health, family planning, pre-natal and post-partum care, and gynecology.

Licensed by New York State as both a Nurse Practitioner in Women’s Health and as Midwife, Ms. Chachere holds a Master of Science degree in Nurse Midwifery from Stony Brook University, and a Master of Public Health degree from the Columbia University Mailman School of Public Health. She earned her RN and BSN from Long Island University.

Listen to Julia Chachere on Peconic Bay Medical Center's Ask the Medical Expert in partnership with JVC Broadcasting.

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Fang Chen, MD

Phone: (631) 405-3200

496 County Road 111
Building B
Manorville, New York 11949
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A board-certified Internist, Dr. Chen provides expert primary care medial services to adults. With her prior training as both a civil engineer and a physical therapist, Dr. Chen has a unique understanding of how the human body functions within its environment.

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Michael Dempsey, MD

Phone: (631) 727-1818

1333 Roanoke Avenue
Suite 202
Riverhead, NY 11901
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cum laude graduate of Harvard University with a Bachelor Medical Science degree from the Dartmouth College School of Medicine, Dr. Dempsey received his MD from the University of Rochester School of Medicine and Dentistry. He is board-certified in Internal Medicine and has been listed as one of “America’s Top Physicians, Internal Medicine” by the Consumer Research Council of America.

Dr. Dempsey welcomes new patients. Waiting times for appointments are typically short. Every effort is made to accommodate patients' schedules for scheduling school and work physicals, vaccinations and screenings. Most insurance plans, Medicare and Medicaid are accepted.

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James Earl, FNP-C, APRN, CEN, MS, MBA

Phone: 631-728-4500

80 E. Montauk Hwy
Hampton Bays, New York 11978
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A board-certified Family Nurse Practitioner, James Earl also brings experience as a Certified Emergency Nurse in trauma settings as well as in forward surgical units from his service with the U.S. Army Reserve Nurse Corps.

In addition to his BSN, Mr. Earl holds a Master of Science Family Nurse Practitioner degree from Malloy College, and a Master of Business Administration degree from American Public University. He is currently enrolled in the Doctor of Nursing Practice program of Chamberlain University, with an anticipated commencement date in 2020.

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Catrina Grefe, NP

Phone: 631-722-4470

31 Main Road
Suite 1
Riverhead, New York 11901
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Tiffany Christine Hunter, MD

Phone: (631) 727-4950

31 Main Road
Floor 2, Suite 7
Riverhead, New York 11901
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271 New York 25A
Wading River, New York 11792
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Denise Karavas, PA

Phone: 631-298-2030

7905 Main Road
Mattituck, New York 11952
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230 Main Street
Greenport, New York 11944
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Richard Kubiak, MD

Phone: 631-727-4470

31 Main Road
Suite 1
Riverhead, New York 11901
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Board-certified in Internal Medicine, Dr. Kubiak provides compassionate primary medical care to patients in Riverhead.

Dr. Kubiak welcomes new patients. Most insurance plans, Medicare and Medicaid are accepted.

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Brian McNulty, MD

Phone: 631-878-2222

504B Montauk Highway
Center Moriches, NY 11934
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A Board-Certified practitioner of Family Medicine, Dr. McNulty also offers extensive training and experience in emergency response and emergency medical care gained as a paramedic with the New York City Emergency Medical Service, the New York City Police Department, and as a Firefighter/Paramedic with the East Farmingdale Fire Department.

Committed to providing the highest standards of personal, attentive care, Dr. McNulty is joined in his practice by a team of top-notch practitioners that includes:

  • Ann Morrill, PA
  • Christina Zaccara, NP

Dr. McNulty welcomes new patients. For physical examinations, follow-up visits and routine office visits, scheduled appointments are recommended.

Most insurance plans, Medicare and Medicaid accepted.

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Ann Morrill, PA

Phone: 631-878-2222

504B Montauk Highway
Center Moriches, New York 11934
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Kimberly Muzzonigro, PA

Phone: 631-405-3200

496 CR 111
Building B
Manorville, New York 11949
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Evan Nadal, DO

Phone: (631) 727-1600

34 Commerce Drive
Suite #1
Riverhead, NY 11901
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Board-Certified by the American College of Osteopathic Family Physicians and a Clinical Assistant Professor in the Department of Family Medicine of the NYIT New York College of Osteopathic Medicine, Dr. Nadal is one of Suffolk County's most highly regarded family physicians.

Dr. Nadal is the Program Director to the family medicine resident physicians of Peconic Bay Medical Center's Graduate Medical Education program.

The practice welcomes new patients. For physical examinations, follow-up visits and routine office visits, scheduled appointments are recommended.

Most insurance plans, Medicare and Medicaid accepted.

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Pooja Atul Paunikar, MD

Phone: (631) 727-1600

34 Commerce Drive
Suite #1
Riverhead, New York 11901
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Board-certified in Family Medicine, Dr. Paunikar also has a Masters Degree in Public Health from Dartmouth Medical School. She was formerly Chief Resident in Family Medicine at Northwell Health’s Southside Hospital and has served on the faculties of New York Presbyterian Columbia Medical College, and the Zucker School of Medicine at Hofstra College. 

Dr. Paunikar welcomes new patients. Waiting times for appointments are typically short. Every effort is made to accommodate patients' schedules for scheduling school physicals, annual medical exams, screenings and vaccinations. Most insurance plans, Medicare and Medicaid are accepted.

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Jessica Petchonka, PA-C, MPAS

Phone: 631-405-3200

496 CR 111
Building B
Manorville, New York 11949
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A member of the American Academy of Physician Assistants and the Association of Family Practice Physician Assistants, Ms. Petchonka is a nationally registered Medical Examiner and has been highly trained and holds certifications in Basic, Advanced, and Pediatric Life Support. She began her career as a practicing physician assistant in the Long Island Jewish Medical Center Emergency Department.

A graduate of Stony Brook University, with a Physician Assistant Master of Science degree from Touro College of Health Science, Ms. Petchonka has been providing primary care and urgent care services at the Peconic Bay Medical Center/Northwell Health Urgent Care Center at the Gertrude and Louis Feil Campus for Ambulatory Services in Manorville, NY, since 2014.

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Robert Daniel Rubin, DO

Phone: 631-405-3200

496 County Road 111
Building B
Manorville, NY 11949
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A board-certified specialist in Pediatrics, Dr. Rubin is also trained in pediatric emergency care, with certifications in Pediatric Advanced Life Support and as a Neonatal Resuscitation Program  instructor.

Dr. Rubin welcomes new patients. Waiting times for appointments are typically short. Every effort is made to accommodate patients' schedules for scheduling school physicals, vaccinations and routine screenings. Most insurance plans are accepted.

Dr. Rubin welcomes new patients. Waiting times for appointments are typically short. Every effort is made to accommodate patients' schedules for scheduling school physicals, vaccinations and routine screenings. Most insurance plans are accepted.

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Elizabeth Sanders, PA

Phone: 631-405-3200

496 CR 111
Building B
Manorville, New York 11949
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Daniel Shapiro, NP

Phone: 631-722-4470

31 Main Road
Suite 1
Riverhead, New York 11901
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Peter Siefken, PA

Phone: 631-405-3200

496 CR 111
Building B
Manorville, New York 11949
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Patricia Sondgeroth, PA

Phone: 631-298-2030

7905 Main Road
Mattituck, New York 11952
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230 Main Street
Greenport, New York 11944
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Steven Spiegel, MD

Phone: 631-288-2273

201 Montauk Highway
Suite 1
Westhampton Beach, New York 11978
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Board-Certified in Internal Medicine, Dr. Spiegel also brings extensive experience in urgent care medical service to his primary care practice in Westhampton Beach, where he has been serving the community since 1996.

Dr. Spiegel welcomes new patients. Waiting times for appointments are typically short. Every effort is made to accommodate patients' schedules for scheduling school physicals, vaccinations and routine screenings. Most insurance plans, Medicare and Medicaid are accepted.

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Danielle Stoebe, PA-C

Phone: 631-929-1004

54 Woodville Road
Shoreham, New York 11786
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A member of the American Academy of Physician Assistants, Ms. Stoebe has been highly trained and holds certifications in Basic, Advanced, and Pediatric Life Support. She began her career as a practicing physician assistant in the Long Island Jewish Medical Center Emergency Department.

A graduate of Stony Brook University, Ms. Stoebe has been providing primary care and urgent care services at the Peconic Bay Medical Center/Northwell Health Urgent Care Center at the Gertrude and Louis Feil Campus for Ambulatory Services in Manorville, NY, since 2016.

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Jeffrey Tiu, DO

Phone: 631-722-4470

496 County Rd 111
Building B
Manorville, NY 11949
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Board-certified by the American Osteopathic Board of Family Physicians, Dr. Tiu, provides compassionate primary medical care.

Dr. Tiu welcomes new patients. Waiting time for appointments are typically short.  Every effort is made to accomadate patient's schedules for  scheduling school physicals, vaccinations and routine screenings.  Most insurance plans, Medicare and Medicaid are accepted.

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Christina Zaccara, ANP-C

Phone: 631-878-2222

504B Montauk Highway
Center Moriches, New York 11934
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A member of the New York Nurse Practitioner Association, Ms. Zaccara is a Certified Adult Nurse Practitioner who has been providing primary care services in homecare and office settings to residents of the East End for more than 15 years.

Beginning her career as a licensed practical nurse, Ms. Zaccara earned her RN from Suffolk Community College in 2006, her BSN on the Dean’s list from Stony Brook University in 2008, and her MSN as an Adult Nurse Practitioner from Stony Brook University in 2011.

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