Summary

Dr. Oliver Diamante specializes in internal medicine with advanced training in infectious disease. He earned his medical degree from the University of the Philippines Manila College of Medicine and brings 19 years of clinical experience to his practice. Dr. Diamante is fluent in both Spanish and English, allowing him to serve a diverse patient population.

Dr. Diamante practices at multiple locations throughout Indiana, including Merrillville, Crown Point, and Valparaiso, with his primary affiliation at The Methodist Hospitals Northlake Campus. He focuses on treating serious infections such as sepsis and urinary tract infections. His expertise includes performing diagnostic tests like arterial blood gas analysis and calcium blood testing to help identify and monitor infectious conditions. Patients rate Dr. Diamante 3.8 out of 5 stars on average.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 3.8
  • 19 years of experience
  • speaks Spanish, English
  • University Of The Philippines Manila College Of Medicine
  • 2 written reviews
  • 2 specialties
  • 8 areas of expertise
  • 2 board certifications
  • 1 hospital affiliation
  • 4 office locations
  • Male

Patients’ Perspective

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

Office Locations

Dr. Oliver Pimentel Diamante has 4 locations

Infectious Disease Specialists Pc

200 E 86th PlMerrillville, IN 46410
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

Pinnacle Hospital Inc

9301 Connecticut DrCrown Point, IN 46307

Methodist Hospitals Southlake Campus

8701 BroadwayMerrillville, IN 46410

Northwest Health Porter

85 E Us Highway 6Valparaiso, IN 46383

Compare with Similar Doctors

Dr. Oliver Pimentel Diamante, MD
Dr. John Matera, MD
Dr. Eric Aguinaldo, DO
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Dr. Oliver Pimentel Diamante, MDDr. John Matera, MDDr. Eric Aguinaldo, DOEric Harker
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients
3.8 
19 Years of Experience 11 Years of Experience 15 Years of Experience 25 Years of Experience
No Virtual Visit Option No Virtual Visit Option No Virtual Visit Option Virtual Visit Available
Speaks Spanish, English Speaks Spanish, English Speaks English Speaks English
Merrillville , INBlue Island , ILBlue Island , ILLyons , CO
Med School: University Of The Philippines Manila College Of Medicine Med School: University Of Missouri Columbia School Of Medicine Med School: Western University of Health Sciences College of Osteopathic Medicine of the Pacific Med School: Duke University School Of Medicine
Current Profile
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Insurance Plans Accepted by Dr. Oliver Pimentel Diamante

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Oliver Pimentel Diamante has the following 2 specialties

Specialty Expertise

Dr. Oliver Pimentel Diamante has the following 8 areas of expertise

  • Fever
  • Hepatitis C
  • HIV Infections
  • Human Immunodeficiency Virus (HIV/AIDS)
  • Immunization
  • Infection
  • Infectious Disease
  • Vaccination

Certifications, License, & Education

19 Years Experience

Dr. Oliver Pimentel Diamante holds an expired medical license in the state of Indiana.

Medical License

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

Education & Training

Medical School

Graduated from University Of The Philippines Manila College Of Medicine in 2007.

NPI Number

Dr. Diamante's NPI number is 1669781050.

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Frequently Asked Questions

Where is Dr. Oliver Pimentel Diamante's office located?
Dr. Oliver Pimentel Diamante's office is located at 200 E 86th Pl, Merrillville, IN, 46410.
Which hospitals is Dr. Oliver Pimentel Diamante affiliated with?
Dr. Oliver Pimentel Diamante is affiliated with The Methodist Hospitals Northlake Campus.
What languages does Dr. Oliver Pimentel Diamante speak?
Dr. Oliver Pimentel Diamante speaks Spanish and English.
Does Dr. Oliver Pimentel Diamante accept my insurance?
You can see the insurance plans that Dr. Oliver Pimentel Diamante accepts on their Vitals profile.
Does Dr. Oliver Pimentel Diamante accept virtual/telehealth appointments?
Dr. Oliver Pimentel Diamante has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

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