About William Gregory M. Rivero, MD, FPCP, DPSN — Nephrology | Internal Medicine

About

Meet Dr. Rivero

Dr. William Gregory M. Rivero is a specialist in Internal Medicine, Nephrology, and Clinical Nutrition with over a decade of experience caring for patients with complex chronic conditions across Metro Manila, Pampanga, and Bulacan.

His practice integrates evidence-based medicine with functional and integrative approaches — recognizing that kidney disease, diabetes, hypertension, and metabolic disorders are deeply interconnected and require a whole-person strategy.

Dr. Rivero is committed to clear communication and patient education, ensuring that every patient and family understands their condition, their medicines, and their path forward — which is also why he personally writes the free health guides at renalcarematters.com.

Medical School Our Lady of Fatima University, Doctor of Medicine
Internship Capitol Medical Center (2004–2005)
Residency Internal Medicine, St. Luke's Medical Center (2005–2008)
Fellowship Nephrology, St. Luke's Medical Center (2009–2011)
Diplomate Philippine Society of Nephrology (DPSN)
Fellow Philippine College of Physicians (FPCP)
Specialties Internal Medicine • Nephrology • Clinical Nutrition
Awards PSN Presidential Award — 2015, 2018, 2020
Leadership Medical Director, St. Josef Renal Care Center • Head Nephrologist, RLMMC • Chair, PSN IT Committee (2011–2022) • Chair, RLMMC Blood Bank
Members PMA • PCP • PSN • ISN • Quezon City Medical Society
PhilHealth 1202-1223251-0
Online SeriousMD: seriousmd.com/doc/williamrivero
Email

Specialties

Areas of expertise

Comprehensive care across three interconnected disciplines, grounded in physiology and delivered with compassion.

Clinic Locations

15+

Years in Practice

Specialties

3×

PSN Presidential Award

Nephrology

Diagnosis and management of kidney diseases with close attention to slowing progression and preserving quality of life.

Chronic Kidney Disease (CKD)
Diabetic Nephropathy
Hypertensive Nephropathy
Proteinuria & Glomerular Disease
Dialysis Management
Post-Transplant Care

Internal Medicine

Comprehensive adult medicine with a focus on cardiometabolic and multi-organ conditions.

Type 2 Diabetes Mellitus
Hypertension
Atrial Fibrillation
Dyslipidemia
Gout & Hyperuricemia
Infectious Disease Management

Clinical Nutrition

Therapeutic nutrition tailored to kidney disease, diabetes, and cardiometabolic health — practical, culturally relevant, and sustainable.

Renal Diet Planning
Diabetic Meal Planning
Weight Management
Low-Purine Diets
Integrative Supplementation
Nutritional Rehabilitation

Patient recognition via SeriousMD

🏅 Good Communicator 🏅 Pleasing Personality 🏅 In Safe Hands 🏅 Caring Doctor 🥈 Silver Award — Successful Consultations ⚡ Reply Time Guarantee

Affiliated Institutions

Fe Del Mundo Medical Center

St. John Biocare & Dialysis

Rafael Lazatin MMC

St. Josef Renal Care

St. Luke's Medical Center

Research & Recognition

Publications & Awards

Peer-reviewed research, award-winning studies, and recognition from the Philippine Society of Nephrology and Philippine College of Physicians.

Research & Publications

Current

Prevalence of Secondary Hyperparathyroidism Among Outpatient Hemodialysis Patients in a Tertiary Hospital

Original research on CKD-MBD burden in Filipino hemodialysis patients.

Author

2008

Cyclic Citrullinated Peptide Antibody and Rheumatoid Factor Assays in the Diagnosis of Rheumatoid Arthritis in Filipinos

Diagnostic accuracy study of autoimmune markers in a Filipino cohort.

Co-author

2006

Effectiveness of Hypertonic Saline vs. Mannitol in Reducing Intracranial Pressure in Acute Brain Injury — A Meta-Analysis

Systematic review and meta-analysis on ICP management. Awarded 1st place at St. Luke's Medical Center; 2nd place, Philippine College of Physicians.

🏆 1st Place — SLMC · 2nd Place — PCP

Pre-Med

Effect of Avocado (Persea americana) Seed Extract on Staphylococcus aureus, E. coli and Pseudomonas aeruginosa — In Vitro

Undergraduate thesis on antimicrobial properties of avocado seed extract.

🏆 1st Prize

Pre-Med

Inhibitory Effect of Commercial Shampoo Preparations Against Pityrosporum orbiculare — In Vitro

Comparative study on antifungal properties of shampoo formulations.

Thesis

Honors & Awards

🏆

PSN Presidential Award — 2015, 2018, 2020

Three-time recipient of the Philippine Society of Nephrology's Presidential Award — given for outstanding contributions to nephrology and the society.

🥇

Best Research — St. Luke's Medical Center, 2006

1st place, internal medicine resident research competition for the hypertonic saline meta-analysis.

🥈

2nd Place — Philippine College of Physicians, 2006

National-level recognition for the same meta-analysis at the PCP annual research competition.

🏅

3rd Honorable Mention — San Beda College

Academic distinction at high school graduation, with recognition as Peer Counselor by the Guidance Office.

Professional Memberships

International Society of Nephrology (ISN)

Full Member — Active since January 2010.

Philippine Medical Association

Active member

Philippine College of Physicians

Fellow (FPCP)

Philippine Society of Nephrology

Diplomate (DPSN) · Former IT Committee Chair (2011–2022)

Quezon City Medical Society

Active member

Kind Words

In their own words

A few reflections from patients, their families, and referring colleagues.

Rated 5.0 / 5 across recent verified consultations on SeriousMD

Doc, I just finished reading the meal plan.

Thank you for taking the time to prepare such a thoughtful treatment plan. I honestly became emotional reading it. Over the past few months, I've felt like I've had to constantly explain what I've been experiencing with my IgA nephropathy and the effects of high-dose prednisone. Many people, with good intentions, have told me to simply eat less because of the weight gain and swelling. Even I started questioning whether I was doing something wrong. For the first time since my diagnosis, I truly felt heard, understood, and believed.

Your compassion and the way you explained everything gave me hope and reassurance during a very difficult time. Thank you for treating me as a person, not just a patient.

I am incredibly grateful for your kindness and expertise.

Patient living with IgA nephropathy

I truly felt that he genuinely cared about my well-being—he didn't just prescribe medications—he took the time to explain why I needed them and what each one was for. That's something I really appreciate.

Most doctors simply review the lab results, prescribe medication, and that's the end of the consultation. I'm always grateful whenever I have the opportunity to be treated by a doctor who takes the time to educate and ensure I understand my condition and treatment.

★★★★★

Verified patient

Online consultation via SeriousMD · July 2026

Good evening po doc, salamat po sa magandang face to face check up kanina. Sobrang natuwa si daddy at mommy sa inyo. Ibang-iba daw po kayo sa dati niyang doctor na nagmamadali at napapagalitan siya.

Son of a patient

Doc Wil is very accommodating, knowledgeable, and incredibly helpful addressing my situation. In our conversation, he takes time to explain complex medical concepts in a way that is easy to understand. He listens attentively to my concerns and questions, providing thoughtful answers that alleviate my worries.

It's evident that [he] genuinely cares about his patients and is committed to their wellbeing. His expertise gives me confidence in the treatment plan we've established, and I feel empowered to take an active role in my health journey. Thanks Doc Wil!

★★★★★

Verified patient

Online consultation via SeriousMD · October 2024

Doc William is very concerned and accommodating not just with issues about my kidney but for my other related health concerns.

★★★★★

Verified patient

Online consultation via SeriousMD · April 2025

Thank you for your very kind referral. I had seen your patient, Mr. JE. I really appreciate the elaborate and detailed summary that allowed me to understand his case more clearly.

Dr. JA

Urologist · Referring colleague

The doctor gives clear instructions as well as explained each of the blood result values clearly.

★★★★★

Verified patient

Online consultation via SeriousMD · May 2026

Dr. William Rivero is always the best Doctor we know. Thank you so much for always taking care of us Doc. You are the best as always, very caring, hands on, approachable and foremost very kind, very knowledgeable and professional, we always feel safe and that we are in good hands.

God bless you more and always Doc. Stay safe, happy and healthy. Thank you so much. I highly recommend.

★★★★★

Verified patient's family

In-person consultation via SeriousMD · September 2024

Dr. Rivero was interested to learn more about lifestyles and medical history. Some doctors seldom ask.

★★★★★

Verified patient

Online consultation via SeriousMD · July 2026

Truly listens and makes you feel heard. Addressing every concern with empathy and patience. Taking the time to explain everything clearly and ensuring you felt comfortable throughout the process!

★★★★★

Verified patient

Online consultation via SeriousMD · January 2025

Recommended ko si Doc ..ang ganda niyang mag explain well detailed talaga kung may 10 star lang ayun yung i rate ko sa kanya.

★★★★★

Verified patient

Online consultation via SeriousMD · February 2025

Shared with permission; initials used to protect privacy. Additional feedback was submitted anonymously by patients through the SeriousMD consultation platform and is published without identifying details. Individual experiences vary and are not a prediction of outcome for any other patient.

Common Questions

Frequently asked questions

Answers to the questions patients most commonly ask before their first visit.

What is a nephrologist, and when should I see one?

A nephrologist is a specialist in kidney diseases. You should see one if you have been told your kidneys are not functioning normally, if your creatinine or eGFR is abnormal, if you have persistent protein or blood in your urine, or if you have diabetes or hypertension and have not had a kidney function check in the past year. Your family doctor or internist can refer you, but you may also book directly.

Do you accept PhilHealth? What about HMOs?

Yes — PhilHealth is accepted at all clinic locations. For HMO coverage, please contact your HMO provider directly and ask for an LOA (Letter of Authorization) before your appointment, as accepted HMOs vary by clinic location. When in doubt, call the clinic directly or message via SeriousMD.

What is the difference between an internist and a nephrologist?

An internist (specialist in Internal Medicine) manages a wide range of adult diseases — diabetes, hypertension, infections, heart disease, and more. A nephrologist is an internist who completed additional subspecialty training specifically in kidney diseases, dialysis, and electrolyte disorders. Dr. Rivero is both — he completed his Internal Medicine residency and Nephrology fellowship at St. Luke's Medical Center, and manages patients across both disciplines.

I have diabetes. Should I be seeing a nephrologist?

If you have had diabetes for more than 5 years, or if your doctor has found protein in your urine or a rising creatinine, a nephrology consultation is strongly recommended. Diabetic kidney disease is the leading cause of kidney failure in the Philippines and is often silent until significantly advanced. Early detection and treatment can slow or stop progression entirely.

What should I bring to my first consultation?

Bring all recent laboratory results (blood tests, urine tests, imaging), a list of current medications with doses, your PhilHealth MDR card, any previous medical records or discharge summaries, and your HMO LOA if applicable. If you have had a kidney ultrasound or CT scan, bring the actual images (CD/film), not just the report.

Can I consult online?

Yes. Online consultations are available through SeriousMD — bookable 24/7. Online consultations are suitable for follow-up visits, medication adjustments, result interpretations, and second opinions. Initial consultations for new, complex, or undiagnosed conditions are best done in person so that a physical examination can be performed.

How often do I need to see a nephrologist once I'm diagnosed with CKD?

Visit frequency depends on your CKD stage: Stage 1–2: every 6–12 months. Stage 3: every 3–6 months. Stage 4: every 1–3 months. Stage 5 / dialysis: monthly or more frequently. More frequent visits may be needed when starting new medications, adjusting doses, or managing acute changes. Regular monitoring is what protects your kidneys — do not skip follow-ups even when you feel well.

My creatinine is slightly elevated but I feel fine. Is that a problem?

Yes — and this is exactly why CKD is called a "silent disease." Symptoms of kidney disease typically don't appear until 60–70% of kidney function is already lost. A mildly elevated creatinine may represent Stage 2–3 CKD with no symptoms at all. The earlier it is evaluated and managed, the better the long-term outcome. Please do not wait for symptoms before seeking evaluation.

Request a Consultation

Book an Appointment

Choose the option that works best for you — instant booking through SeriousMD, or send a request and the clinic will confirm your schedule within 24 hours.

Two ways to reach us

Both options go to the same clinics. Use SeriousMD for instant confirmation. Use the form below if you are a new patient or prefer to describe your concern first.

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Instant — via SeriousMD

Real-time availability, instant confirmation. Recommended for returning patients.
seriousmd.com/doc/williamrivero →

📋

Request Form — this page

Fill out the form. Clinic staff will contact you within 24 hours to confirm your schedule. Ideal for new patients.

📧

Email directly

For referral letters, medical records, and urgent clinical concerns.

What to prepare: Recent laboratory results, list of current medications with doses, PhilHealth MDR card, HMO LOA if applicable. For kidney ultrasound or CT scan — bring the actual CD/film, not just the report.

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A physician who listens,
thinks, and cares.

Meet Dr. Rivero