Summary

Dr. Michael Karellas is a urologist and surgical oncologist who brings 25 years of experience to his practice. He specializes in urology with additional expertise in surgical oncology, allowing him to provide comprehensive care for complex urological conditions. Dr. Karellas earned his medical degree from the University of Kansas School of Medicine and has dedicated his career to helping patients with urological health concerns. He communicates with patients in English.

Dr. Karellas maintains hospital affiliations with Stamford Hospital and Yale New Haven Hospital, practicing across multiple locations in Greenwich, Stamford, and New Haven, Connecticut. His clinical focus includes treating conditions such as acute urinary retention and prostate cancer. He performs diagnostic procedures including PSA testing and comprehensive blood work to help identify and monitor urological conditions. Patients rate Dr. Karellas 3.8 out of 5 stars on average for his care.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 3.8
  • 25 years of experience
  • speaks English
  • University Of Kansas School Of Medicine
  • 5 written reviews
  • 2 specialties
  • 18 areas of expertise
  • 2 board certifications
  • 2 hospital affiliations
  • 8 office locations
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Locations

Dr. Michael Emmanuel Karellas has 8 locations

Helmsley Ambulatory Surgical Care

55 Holly Hill LnGreenwich, CT 06830
Mon8:00 am - 4:00 pm
Tue8:00 am - 4:00 pm
Wed8:00 am - 4:00 pm
Thu8:00 am - 4:00 pm
Fri8:00 am - 4:00 pm
SatClosed
SunClosed

Dr. Michael Emmanuel Karellas

29 Hospital Plz Ste 604Stamford, CT 06902
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
Thu9:00 am - 5:00 pm
Fri9:00 am - 5:00 pm
SatClosed
SunClosed

Stamford Hospital

1 Hospital PlzStamford, CT 06902

Yale New Haven Hospital

20 York StNew Haven, CT 06510

Greenwich Hospital

5 Perryridge RdGreenwich, CT 06830

Yale New Haven Transplant Center

800 HOWARD AVE STE 4NEW HAVEN, CT 06519
Mon8:30 am - 5:00 pm
Tue8:30 am - 5:00 pm
Wed8:30 am - 5:00 pm
Thu8:30 am - 5:00 pm
Fri8:30 am - 5:00 pm
SatClosed
SunClosed

Smilow Cancer Hospital

35 Park StNew Haven, CT 06519

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Dr. Michael Emmanuel Karellas, MDBernard H. Bochner, MDChristina Sangiorgi, NPFelix Cheung, MD
UrologyUrologyUrologyUrology
Accepts New Patients Accepts New Patients Accepts New Patients
3.8 
4.4 
25 Years of Experience 36 Years of Experience 15 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks English Speaks English, Cantonese
Greenwich , CTNew York , NYNew York , NYNew York , NY
Med School: University Of Kansas School Of Medicine Med School: University of California at Los Angeles Med School: SUNY Downstate College of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Michael Emmanuel Karellas

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Michael Emmanuel Karellas has the following 2 specialties

Specialty Expertise

Dr. Michael Emmanuel Karellas has the following 18 areas of expertise

  • Bladder Issues
  • Bladder Removal (Cystectomy)
  • Blood in Urine (Hematuria)
  • Cancer
  • Elevated Prostate-Specific Antigen (PSA)
  • Enlarged Prostate (Prostatic Hyperplasia)
  • Erectile Dysfunction (ED)
  • Kidney Cancer
  • Kidney Stones
  • Kidney Stones (Kidney Calculi)
  • Overactive Urinary Bladder
  • Prostate Cancer
  • Prostatitis
  • Surgical Oncology
  • Testicular Diseases
  • Urinary Bladder Cancer
  • Urologic Emergencies
  • Vasectomy

Certifications, License, & Education

25 Years Experience

Dr. Michael Emmanuel Karellas holds an expired medical license in the state of Connecticut.

Medical License

Medical Doctor with an expired medical license in the state of Connecticut that expired in 2026.

Education & Training

Medical School

Graduated from University Of Kansas School Of Medicine in 2001.

NPI Number

Dr. Karellas' NPI number is 1376671396.

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Frequently Asked Questions

Where is Dr. Michael Karellas's office located?
Dr. Michael Karellas's office is located at 55 Holly Hill Ln, Greenwich, CT, 06830.
Does Dr. Michael Karellas accept virtual/telehealth appointments?
Dr. Michael Karellas has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
What languages does Dr. Michael Karellas speak?
Dr. Michael Karellas speaks English.
Is Dr. Michael Karellas accepting new patients?
Dr. Michael Karellas is accepting new patients on Vitals. View Dr. Michael Karellas's profile on Vitals to make an appointment.
Does Dr. Michael Karellas accept my insurance?
You can see the insurance plans that Dr. Michael Karellas accepts on their Vitals profile.

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