Summary

Dr. Alfonso Tan specializes in internal medicine, bringing six decades of clinical experience to patient care. He earned his medical degree from Far Eastern University Institute of Medicine Nicanor Reyes Medical Foundation and completed his residency at Memorial Hospital. Dr. Tan speaks both Chinese and English, helping him connect with patients from diverse backgrounds.

Dr. Tan practices at locations in Sayville, West Islip, and Bay Shore, New York, with affiliations at NYU Langone Hospital Suffolk. He focuses on treating sleep disorders, including sleep apnea in both adults and children. His practice includes advanced monitoring techniques and digestive health procedures such as colonoscopy. Patients rate Dr. Tan 4.0 out of 5 stars for his care.

AI-generated from data on this provider profile.

Quick Facts

  • accepting new patients
  • 4
  • 64 years of experience
  • 15 insurance plans accepted
  • speaks Chinese, English
  • Memorial Hospital
  • 1 written review
  • 1 specialty
  • 6 areas of expertise
  • 1 hospital affiliation
  • 3 office locations
  • Male

Office Locations

Dr. Alfonso Tan has 3 locations

Alfonso Tan Md Pc

297 W Main StSayville, NY 11782
Mon9:00 am - 6:00 pm
Tue9:00 am - 6:00 pm
Wed9:00 am - 6:00 pm
ThuClosed
Fri9:00 am - 6:00 pm
SatClosed
SunClosed

Good Samaritan Hospital Medical Center

1000 Montauk HwyWest Islip, NY 11795

South Shore University Hospital

301 E Main StBay Shore, NY 11706

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Dr. Alfonso Tan, MD
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Dr. Alfonso Tan, MDDebra Shira Greenfield, MDDr. Arthur Yunov, MDEric Harker
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
3.9 
64 Years of Experience 44 Years of Experience 34 Years of Experience 25 Years of Experience
No Virtual Visit Option No Virtual Visit Option Virtual Visit Available Virtual Visit Available
Speaks Chinese, English Speaks English Speaks English Speaks English
Sayville , NYSmithtown , NYBrooklyn , NYLyons , CO
Med School: Far Eastern University Inst Of Med Nicanor Reyes Medical Foundation Med School: Mount Sinai School Of Medicine Of New York University Med School: ANDIZHAN STATE MEDICAL INSTITUTE Med School: Duke University School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Alfonso Tan

  • Accepts Medicare
  • Accepts Medicaid
  • Aetna
  • Aetna - Medicare (Advantage HMO)
  • Blue Cross Blue Shield
  • Cigna - HMO
  • EmblemHealth
  • EmblemHealth - PPO
  • Fidelis Care (NY)
  • HealthFirst (NY)
  • Integra
  • MagnaCare
  • Medicare
  • Medicare - Medicare
  • Santa Clara Family Health Plan
  • UnitedHealthcare
  • UnitedHealthcare Oxford

Medical Specialties

Dr. Alfonso Tan has the following specialty

Specialty Expertise

Dr. Alfonso Tan has the following 6 areas of expertise

  • Check-up
  • Heartburn
  • Immunization
  • Physical
  • Vaccination
  • Weight Loss

Certifications, License, & Education

64 Years Experience

EDUCATION & TRAINING

Residency

Memorial Hospital

Medical School

Far Eastern University Inst Of Med Nicanor Reyes Medical FoundationGraduated in 1962

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Frequently Asked Questions

Does Dr. Alfonso Tan accept my insurance?
You can see the insurance plans that Dr. Alfonso Tan accepts on their Vitals profile.
Is Dr. Alfonso Tan accepting new patients?
Dr. Alfonso Tan is accepting new patients on Vitals. View Dr. Alfonso Tan's profile on Vitals to make an appointment.
Which hospitals is Dr. Alfonso Tan affiliated with?
Dr. Alfonso Tan is affiliated with Nyu Langone Hospital Suffolk.
Where is Dr. Alfonso Tan's office located?
Dr. Alfonso Tan's office is located at 297 W Main St, Sayville, NY, 11782.
How can I make an appointment with Dr. Alfonso Tan?
You can find contact information for Dr. Alfonso Tan here on Vitals.

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