Summary

Dr. Oliver Diamante is an internal medicine physician who specializes in infectious disease, bringing 19 years of clinical experience to his practice. He earned his medical degree from the University of the Philippines Manila College of Medicine, where he developed a strong foundation in comprehensive patient care. His dual specialization allows him to manage complex infections while providing broader internal medicine services. Dr. Diamante is fluent in both Spanish and English, enabling him to serve diverse patient populations in his community.

Dr. Diamante practices at The Methodist Hospitals Northlake Campus and provides care across multiple locations in Merrillville, Crown Point, and Valparaiso, Indiana. He specializes in treating serious infections like osteomyelitis and sepsis, including pediatric sepsis cases. His expertise extends to advanced treatment options such as home infusion therapy and intravenous therapy through specialized infusion clinics. Patients rate Dr. Diamante 3.8 out of 5 stars on average, reflecting his commitment to infectious disease care in the Northwest Indiana region.
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AI-generated from data on this provider profile.

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

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

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Dr. Oliver Pimentel Diamante, MD
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Dr. Oliver Pimentel Diamante, MDDr. John Matera, MDEric HarkerDr. Tuesdae Stainbrook, DO
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
3.8 
3.9 
4.4 
19 Years of Experience 11 Years of Experience 25 Years of Experience 31 Years of Experience
No Virtual Visit Option No Virtual Visit Option Virtual Visit Available Virtual Visit Available
Speaks Spanish, English Speaks Spanish, English Speaks English Speaks English
Merrillville , INBlue Island , ILLyons , CODu Bois , PA
Med School: University Of The Philippines Manila College Of Medicine Med School: University Of Missouri Columbia School Of Medicine Med School: Duke University School Of Medicine Med School: Ohio University College Of Osteopathic 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

MEDICAL LICENSE

Medical Doctor, Indiana, 2025, Expired

EDUCATION & TRAINING

Medical School

University Of The Philippines Manila College Of MedicineGraduated in 2007

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Frequently Asked Questions

How can I make an appointment with Dr. Oliver Diamante?
You can find contact information for Dr. Oliver Diamante here on Vitals.
Which hospitals is Dr. Oliver Diamante affiliated with?
Dr. Oliver Diamante is affiliated with The Methodist Hospitals Northlake Campus.
What languages does Dr. Oliver Diamante speak?
Dr. Oliver Diamante speaks Spanish and English.
Does Dr. Oliver Diamante accept my insurance?
You can see the insurance plans that Dr. Oliver Diamante accepts on their Vitals profile.
Where is Dr. Oliver Diamante's office located?
Dr. Oliver Diamante's office is located at 200 E 86th Pl, Merrillville, IN, 46410.

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