Oscar Zambrano

Practice: Welcome Health Medical Group

Specialty: Cardiology, Internal Medicine

Office locations: Whittier, CA

Most recent review: 3 weeks ago Recent
5.0 out of 5
6 Ratings
2 Comments

Dr. Oscar Zambrano, M.D. earned his medical degree from San Marcos University in Lima, Peru, in 1972. He completed his residency at Berkshire Medical Center and Lemuel Shattuck Faulkner Medical Center in Massachusetts, followed by fellowships in Critical Care at Hollywood Presbyterian Hospital and in Cardiology at Kaiser Hospital Foundation. Board certified in Internal Medicine and Cardiovascular Diseases.

5.0 out of 5
6 Ratings
2 Comments

Dr. Oscar Zambrano, M.D. earned his medical degree from San Marcos University in Lima, Peru, in 1972. He completed his residency at Berkshire Medical Center and Lemuel Shattuck Faulkner Medical Center in Massachusetts, followed by fellowships in Critical Care at Hollywood Presbyterian Hospital and in Cardiology at Kaiser Hospital Foundation. Board certified in Internal Medicine and Cardiovascular Diseases.

The reviews listed below were collected independently of Welcome Health Medical Group through rater8. Each review represents an authentic and verified patient experience.

Excelente servicio, muy, muy profesional un gran Cardiologo. Muy feliz por la atención y servicio recibido.

Rated 5 out of 5 stars
(3 weeks ago) Sep-2026

Excelente doctor gracias 🙂

Rated 5 out of 5 stars
(2 months ago) Aug-2026