Summary

Dr. Walter Janer Martinez is a gastroenterologist and internal medicine physician who earned his medical degree from the University of Puerto Rico School of Medicine. With 33 years of clinical experience, he brings extensive knowledge to the diagnosis and treatment of digestive disorders and general internal medicine conditions.

Dr. Martinez practices throughout Bayamon, Puerto Rico, with affiliations at several leading medical facilities including Auxilio Mutuo San Pablo, Hospital Regional Ramon Ruiz Arnau, Bayamon Medical Center, and Doctors Center Hospital Bayamon. His clinical focus includes caring for patients with diabetes and related conditions, particularly in older adults. He performs upper gastrointestinal endoscopy procedures to diagnose and treat digestive system problems. Patients have given him an average rating of 4.3 out of 5 for his care.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.3
  • 33 years of experience
  • 1 insurance plan accepted
  • University Of Puerto Rico School Of Medicine
  • 2 specialties
  • 1 area of expertise
  • 4 hospital affiliations
  • 4 office locations
  • Male

Patients’ Perspective

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

Office Locations

Dr. Walter E Janer Martinez has 4 locations

Clinica De Gastroenterologia Y Endoscopia Terapeutico De Puerto Rico

73 CALLE SANTA CRUZ STE 213Bayamon, PR 00961
Mon8:00 am - 4:00 pm
Tue8:00 am - 4:00 pm
Wed8:00 am - 4:00 pm
Thu8:00 am - 4:00 pm
FriClosed
SatClosed
SunClosed

Auxilio Mutuo San Pablo

70 Calle Santa CruzBayamon, PR 00961

Bayamon Medical Center

Carr 2 Km 11 7Bayamon, PR 00959

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Dr. Walter E Janer MartinezDr. Jose Raul Vazquez SellesDr. Isabel Maria RutzenDr. Sonia M Saavedra Sanquirico
GastroenterologyNuclear MedicinePhysical Medicine & RehabilitationInfectious Disease
Accepts New Patients
4.3 
33 Years of Experience 48 Years of Experience 15 Years of Experience 46 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option
Bayamon , PRSan Juan , PRSan Juan , PRSan Juan , PR
Med School: University Of Puerto Rico School Of Medicine Med School: University Of Puerto Rico School Of Medicine Med School: University Central Del Caribe School Of Medicine Med School: University Central Del Caribe School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Walter E Janer Martinez

  • Accepts Medicare
  • Accepts Medicaid
  • CHAMPVA - HMO

Medical Specialties

Dr. Walter E Janer Martinez has the following 2 specialties

Specialty Expertise

Dr. Walter E Janer Martinez has the following area of expertise

  • Internal Medicine

Certifications, License, & Education

33 Years Experience

Dr. Walter E Janer Martinez holds an expired medical license in the state of Puerto Rico.

Medical License

Medical Doctor with an expired medical license in the state of Puerto Rico that expired in 2025.

Education & Training

Medical School

Graduated from University Of Puerto Rico School Of Medicine in 1993.

NPI Number

Dr. Janer Martinez's NPI number is 1134122625.

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Frequently Asked Questions

Is Dr. Walter E Janer Martinez accepting new patients?
Dr. Walter E Janer Martinez is accepting new patients on Vitals. View Dr. Walter E Janer Martinez's profile on Vitals to make an appointment.
Does Dr. Walter E Janer Martinez accept my insurance?
You can see the insurance plans that Dr. Walter E Janer Martinez accepts on their Vitals profile.
Does Dr. Walter E Janer Martinez accept virtual/telehealth appointments?
Dr. Walter E Janer Martinez has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. Walter E Janer Martinez?
You can find contact information for Dr. Walter E Janer Martinez here on Vitals.
Which hospitals is Dr. Walter E Janer Martinez affiliated with?
Dr. Walter E Janer Martinez is affiliated with Auxilio Mutuo San Pablo, Hospital Regional Ramon Ruiz Arnau Md, Bayamon Medical Center, and Doctors Center Hospital Bayamon.

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