Summary

Dr. Frederick Ruymann treats pancreatitis, including acute and chronic forms, and practices gastroenterology and internal medicine in Hyannis, Massachusetts. He has 39 years of experience and is affiliated with Cape Cod Hospital. Dr. Ruymann earned his medical degree from Case Western Reserve University School of Medicine and completed his residency at Massachusetts General Hospital. He speaks Portuguese and Spanish. Patients on Vitals rate Dr. Ruymann 4.03 out of 5.

Overview based on verified provider data

Quick Facts

  • 4
  • 39 years of experience
  • speaks Portuguese, Spanish
  • Massachusetts General Hospital
  • 7 written reviews
  • 2 specialties
  • 11 areas of expertise
  • 1 hospital affiliation
  • 2 office locations
  • Male

Patients’ Perspective

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

Office Locations

Dr. Frederick W Ruymann has 2 locations

Cape Cod Healthcare General And Specialty Surgery

105 Park StHyannis, MA 02601
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Cape Cod Hospital

27 Park StHyannis, MA 02601

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Dr. Frederick W Ruymann, MDTheresa Obonyano, APRNJan Seiler, APRNAshley Anderson, APRN
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients
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39 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks Portuguese, Spanish Speaks English Speaks English Speaks English
Hyannis , MASacramento , CAMontgomery , ALSacramento , CA
Med School: Case Western Reserve University School Of Medicine Med School: The University of Texas Health Science Center at Houston Med School: Georgia State University Med School: East Tennessee State University - Quillen College of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Frederick W Ruymann

Be sure to verify insurance information directly with your doctor's office, as it may undergo frequent changes.

Medical Specialties

Dr. Frederick W Ruymann has the following 2 specialties

Specialty Expertise

Dr. Frederick W Ruymann has the following 11 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Hemorrhoids
  • Hepatitis C
  • Internal Medicine
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Certifications, License, & Education

39 Years Experience

Dr. Frederick W Ruymann holds an expired medical license in the state of Massachusetts.

Medical License

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

Education & Training

Residency

Completed their residency at Massachusetts General Hospital.

Medical School

Graduated from Case Western Reserve University School Of Medicine in 1987.

NPI Number

Dr. Ruymann's NPI number is 1568466316.

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Frequently Asked Questions

Where is Dr. Frederick Ruymann's office located?
Dr. Frederick Ruymann's office is located at 105 Park St, Hyannis, MA, 02601.
Which hospitals is Dr. Frederick Ruymann affiliated with?
Dr. Frederick Ruymann is affiliated with Cape Cod Hospital.
What languages does Dr. Frederick Ruymann speak?
Dr. Frederick Ruymann speaks Portuguese and Spanish.
Does Dr. Frederick Ruymann accept my insurance?
You can see the insurance plans that Dr. Frederick Ruymann accepts on their Vitals profile.
Does Dr. Frederick Ruymann accept virtual/telehealth appointments?
Dr. Frederick Ruymann has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards
  • Healthcare system and provider network data

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