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Stefanie Ehrlein, AGPCNP-BC
out of 5
  • Family Medicine
Accepting new patients

Appointments: Call 631-654-7800


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240 Patchogue Yaphank Rd Internal Medicine

240 Patchogue Yaphank Rd
Suite 205
East Patchogue, NY 11772
United States

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5499 Nesconset Hwy Family Medicine

5499 Nesconset Hwy
Mt Sinai, NY 11766
United States

Clinical Expertise

  • AWV
  • Allergies
  • Annual physicals
  • Annual visit
  • Annual wellness visit
  • Anxiety
  • Behavioral health
  • Behavioral problems
  • Bronchitis
  • Chest pain
  • Cholesterol
  • Colds
  • Cough
  • Depression
  • Diet
  • Ear pain
  • Fatigue
  • Fever
  • Flu
  • Headache
  • High blood pressure
  • Hypertension
  • Immunizations
  • Lifestyle medicine
  • Lower back pain
  • Metabolic disorders
  • Metabolic syndrome management
  • Nutrition
  • PCP
  • PE
  • Pink eye
  • Premenopause symptoms
  • Prevention
  • Preventive care
  • Preventive visits
  • Primary Care
  • Primary Care Provider
  • Primary Care Providers
  • Screenings
  • Shortness of Breath
  • Sinusitis
  • Smoking Cessation
  • Strep throat
  • Vaccinations
  • Vaccine
  • Vaccines
  • Well visits

New York Accepted Insurances

Always check with your health insurance carrier before scheduling any type of service. You can learn the details of your individual health insurance plan, including the amount of your copay, deductible, and coinsurance by visiting your health insurance company's website or by calling their customer service department. Click here to review our list of accepted insurance plans.

Training and Education

Board Certification

  • AGPCNP/MSN, Board Certified by ANCC


  • Master of Science in Nursing, Adult-Gerontology Primary Care Nurse Practitioner, St. Joseph's College, Patchogue, NY


  • Bachelor of Science in Nursing, University of Phoenix, Phoenix, AZ
  • Associate of Applied Science in Nursing, SUNY Farmingdale, Farmingdale, NY
  • Certificate in Emergency Medical Technician - Paramedic, Hudson Valley Community College, Troy, NY
  • Bachelor of Science in Biology, SUNY Albany, Albany, NY

About Me

Stefanie Ehrlein, MSN, APRN, AGPCNP-BC, specializes in treating patients across adulthood with various issues that present to the office. As part of her clinical focus and training, Ms. Ehrlein is board-certified by the American Nurses Credentialing Center (ANCC). She is also certified in Advanced Cardiovascular Life Support (ACLS) and Pediatric Advanced Life Support (PALS). She follows a holistic philosophy to treating patients and is open to complementary approaches to traditional medicine. It is essential that her patients feel heard and satisfied with their plan of care. “I find joy in knowing that I have helped someone feel better,” says Ms. Ehrlein.

Her health care career started as an EMS volunteer for her local community, followed by 16 years working and volunteering as a paramedic. While working as a paramedic and nursing assistant, Ms. Ehrlein went to nursing school and began working as a nurse in 2004.

When she is not practicing nursing, Ms. Ehrlein enjoys hiking and kayaking, Broadway shows, visiting museums, and viewing festive Christmas displays. She also loves traveling to other countries, especially Austria, where she finds the people hospitable and the chocolate delectable. In addition, she is passionate about animal welfare and has two adopted rescue cats from Last Chance Animal Rescue.