Marimar Contreras Nieves, MD

Nephrology Internal Medicine

Marimar Contreras Nieves is a Nephrology Internal Medicine specialist based in Palo Alto, CA with over 7 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

Also practices: INTERNAL MEDICINE

(650) 853-2917Palo Alto, CA
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Marimar Contreras Nieves, MD has practiced internal medicine for 7+ years, working in group practice. A University of Puerto Rico School of Medicine graduate since 2019, she brings 7+ years of experience. Nephrologists treat kidney diseases including chronic kidney disease, kidney failure requiring dialysis, and more.

1 of 563 Internal Medicine providers in CASee all Internal Medicine in Palo Alto7+ years experienceNPI since 2017

Older · 657dNPPES updated 2024-08-05 · verify NPI on CMS · Verify license at Medical Board of California

Contact & Location

Practice Location

795 El Camino Real, Palo Alto, CA 94301-2302

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Background & Specialty

Education, training, and specialty classification from CMS NPPES and Medicare records.

Career Journey
  1. Graduated medical school · 2019

    University of Puerto Rico School of Medicine

  2. Board certified · Aug 4, 2024

    Self-reported via NPPES

  3. 7 years in practice

    Established

Internal MedicineAllopathic & Osteopathic Physicians

Nephrologists treat kidney diseases including chronic kidney disease, kidney failure requiring dialysis, glomerulonephritis, kidney stones, and electrolyte disorders. They manage dialysis access and kidney transplant follow-up.

Taxonomy: 207RN0300X

Education & Training

University of Puerto Rico School of Medicine (Class of 2019)

Practice Footprint

Mailing address

300 Pasteur Dr, Palo Alto, CA 94304-2203

Differs from practice location

Primary hospital affiliation: Acute Care Hospitals

CMS Certification Number: 200034

View hospital on Medicare Care Compare

Virtual Internal Medicine Care With Marimar Contreras Nieves

NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.

Schedule a virtual visit with Marimar Contreras Nieves for follow-ups, medication reviews, and ongoing care — no travel to Palo Alto required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.

Frequently Asked Questions

Common questions about Marimar Contreras Nieves

NPI records show Dr. Contreras Nieves as active with telehealth listed in Palo Alto, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (650) 853-2917.

Verified across 2 federal data sources

Sourced from CMS NPPES · OIG LEIE. See Data Methodology.

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Medical Disclaimer: NPI Telehealth is a provider directory for informational purposes only. This page does not constitute medical advice, diagnosis, or treatment recommendations. Provider data is sourced from the CMS NPPES federal registry and public Medicare datasets. NPI Telehealth does not verify clinical qualifications beyond federal records. Data may not reflect real-time availability — always contact the provider's office directly to confirm details before seeking care.

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