Edwin Jonathan Chiu, M.D.

Nephrology Internal Medicine

Edwin Jonathan Chiu is a Nephrology Internal Medicine specialist based in Napa, CA with over 25 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

Also practices: INTERNAL MEDICINE

Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Edwin Jonathan Chiu, M.D. practices as part of a group nephrologist practice in Napa, CA. A University of Rochester School of Medicine and Dentistry graduate since 2001, he brings 25+ years of experience. CMS Medicare data shows his patients commonly have hypertension, diabetes, and kidney disease.

At a glance

  • Uses generic medications more than 49% of reporting doctors in California
  • Virtual visits available — no app or travel required
1 of 563 Internal Medicine providers in CASee all Internal Medicine in Napa25+ years experienceNPI since 2006

Older · 1620dNPPES updated 2021-12-15 · verify NPI on CMS · Verify license at Medical Board of California

Contact & Location

Practice Location

3230 Beard Rd, Napa, CA 94558-3673

Fax: (707) 253-7268
CMS Clinical Data

How Does This Doctor Compare?

Based on Medicare data, this doctor favors affordable generic drugs over brand-name ones.

Generic Rx

↑ Higher = better

87.6%

California avg: 83.3 · US avg: 82.8

Higher than most doctors nationally(+4.8 pts)

Typical range among reporting doctors in California

How often this doctor prescribes affordable generic drugs instead of expensive brand-name ones.

Medicare Patients

22

Unique beneficiaries

Boutique practice

Prescription Recipients

229

Patients prescribed

Prescriptions Written

1,362

Total claims

Total Medicare drug cost: $210k

Percentile rankings compared against 9,360 reporting peers in California.

Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.

Patient Condition Panel

What This Doctor Treats Most

Based on Medicare claims data — here's what patients commonly see this doctor for

Based on Medicare data, this doctor primarily manages Hypertension, Diabetes, and Chronic Kidney Disease.

Hypertension
Higher than avg (+5%)75%

High blood pressure — a leading risk factor for heart disease and stroke

US avg: 70.2%

↑ More patients than average (+5%) — a focus area for this doctor

Diabetes
Higher than avg (+41%)75%

A condition where the body cannot properly regulate blood sugar levels

US avg: 34.5%

↑ More patients than average (+41%) — a focus area for this doctor

Chronic Kidney Disease
Higher than avg (+45%)75%

Gradual loss of kidney function over time, often linked to diabetes or hypertension

US avg: 29.6%

↑ More patients than average (+45%) — a focus area for this doctor

High Cholesterol
Lower than avg (-2%)68%

Elevated cholesterol or triglycerides that increase heart disease risk

US avg: 70.4%

↓ Fewer patients than average (-2%) — less common here

GeneralBehavioralNational avg

Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.

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Background & Specialty

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

Career Journey
  1. Graduated medical school · 2001

    University of Rochester School of Medicine and Dentistry

  2. 25 years in practice

    Experienced

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 Rochester School of Medicine and Dentistry (Class of 2001)

Practice Footprint

Primary hospital affiliation: Acute Care Hospitals

CMS Certification Number: 190065

View hospital on Medicare Care Compare

Virtual Internal Medicine Care With Edwin Jonathan Chiu

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

Schedule a virtual visit with Edwin Jonathan Chiu for blood pressure monitoring, diabetes check-ins, kidney care follow-ups — no travel to Napa 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 Edwin Jonathan Chiu

Dr. Chiu is listed as active in the NPI registry with telehealth listed in Napa, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (707) 253-7005.

Verified across 4 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Physician Comparator. 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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