David Flemming Chang, M.D.

Nephrology Internal Medicine

David Flemming Chang is a Nephrology Internal Medicine specialist based in Wildomar, CA with over 28 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.

Also practices: INTERNAL MEDICINE

(951) 600-7630Wildomar, CA
Telehealth Available
NPI Active per CMS — Q2 2026|Medicare Enrolled|Order & Refer

Patients across CA can see David Flemming Chang, M.D. in person in Wildomar or via virtual visit — no travel required. He graduated from Temple University School of Medicine in 1998 and has 28+ years of clinical experience. Among his Medicare patients, common conditions include hypertension, high cholesterol, and kidney disease (per CMS data).

1 of 563 Internal Medicine providers in CASee all Internal Medicine in Wildomar28+ years experienceNPI since 2006

Older · 1752dNPPES updated 2021-08-05 · verify NPI on CMS · Verify license at Medical Board of California

Contact & Location

Practice Location

36320 Inland Valley Dr Suite 308, Wildomar, CA 92595-7512

Fax: (951) 600-7164
CMS Clinical Data

How Does This Doctor Compare?

Medicare Patients

415

Unique beneficiaries

Standard volume

Prescription Recipients

206

Patients prescribed

Prescriptions Written

1,034

Total claims

Total Medicare drug cost: $198k

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, High Cholesterol, and Chronic Kidney Disease.

Hypertension
75%

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

High Cholesterol
75%

Elevated cholesterol or triglycerides that increase heart disease risk

Chronic Kidney Disease
75%

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

Diabetes
63%

A condition where the body cannot properly regulate blood sugar levels

Ischemic Heart Disease
52%

Reduced blood flow to the heart muscle, commonly known as coronary artery disease

Heart Failure
51%

The heart cannot pump blood efficiently enough to meet the body's needs

Arthritis
46%

Joint inflammation causing pain, swelling, and stiffness

Atrial Fibrillation
36%

An irregular, often rapid heartbeat that increases the risk of stroke

GeneralBehavioralNational avg

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

Industry Payment Transparency

$842 received from industry

41 transactions reported in 2024 ·Moderate tier

View on CMS Open Payments →

Payments include consulting fees, speaking honoraria, food & beverage, travel, research support, and ownership interests from drug and medical device manufacturers. Disclosure is required by the federal Physician Payments Sunshine Act. These payments do not necessarily indicate conflicts of interest. National median: $338 across 136 000 tracked providers.

Tiers — Low: under $500 · Moderate: $500-5 000 · High: $5 000-25 000 · Very High: $25 000+. Source: CMS Open Payments 2024, attributed to David Flemming Chang's NPI.

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Background & Specialty

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

Career Journey
  1. Graduated medical school · 1998

    Lewis Katz School of Medicine at Temple University

  2. Board certified · Aug 4, 2021

    Self-reported via NPPES

  3. 28 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

Temple University School of Medicine (Class of 1998)

Practice Footprint

Mailing address

3660 Park Sierra Dr Ste 203, Riverside, CA 92505-3071

Differs from practice location

Primary hospital affiliation: Acute Care Hospitals

CMS Certification Number: 210057

View hospital on Medicare Care Compare

Virtual Internal Medicine Care With David Flemming Chang

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

Schedule a virtual visit with David Flemming Chang for blood pressure monitoring, cholesterol management, kidney care follow-ups — no travel to Wildomar 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 David Flemming Chang

NPI records show Dr. Chang as active with telehealth listed in Wildomar, CA. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (951) 600-7630.

Verified across 5 federal data sources

Sourced from CMS NPPES · OIG LEIE · CMS Medicare Part D · CMS Open Payments 2024 · 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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