Dr. Charles Nguyen, MD

  • Corona, CA
  • Nephrologist
NPI1538400288PAC ID8022247220
Medicare services, 2024
1,929
Medicare patients, 2024
382
Part D claims, 2024
3,489
Hospital affiliations
4
Industry payments
$7,239
Practice address
2057 Compton Avenue, Suite #101, Corona, CA 92881
Practice phone
Call (951) 735-5845
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

DaVita Corona Dialysis Center

Dialysis Center - Independent · Corona, California

See all 11 affiliations

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Dr. Charles Nguyen is a nephrologist in Corona, California

Dr. Nguyen practices at DaVita Corona Dialysis Center in Corona, California.

Dr. Nguyen's NPI, 1538400288, was assigned on March 5, 2013. Dr. Nguyen graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 2011. Dr. Nguyen holds California license A124779.

NPI and contact details
Medicare PAC ID
8022247220
NPI enumeration date
March 5, 2013
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(951) 735-5845
Professional email
Get email
Personal email
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Mobile number
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Sex
Male
Estimated age
41
Medical school graduation
2011

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. Charles Nguyen practices at DaVita Corona Dialysis Center in Corona, California

Dr. Nguyen's primary practice is DaVita Corona Dialysis Center, at 2057 Compton Avenue, Suite #101, Corona, CA 92881 in Riverside County. The practice phone is (951) 735-5845.

  • DaVita Corona Dialysis Center
    2057 Compton Avenue, Suite #101, Corona, CA 92881 · Riverside CountyPhone(951) 735-5845

Source: Dmand AI Affiliation Data

Dr. Charles Nguyen is affiliated with 9 sites of care and 2 medical groups

Dr. Nguyen's primary practice is DaVita Corona Dialysis Center in Corona, California. Dr. Nguyen is also affiliated with Corona Regional Medical Center. The medical group on file is Nephrology Associates Medical Group. Dmand AI also links Dr. Nguyen to 3 more hospitals, 3 dialysis centers, 1 group practice or clinic and 1 medical group, each named with a free account.

See all 11 affiliations for Dr. Nguyen

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. Charles Nguyen's practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nguyen practices, 9 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
DaVita Corona Dialysis CenterAvailable with a free account
+8 more sites and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Charles Nguyen is one of 1,401 nephrologists in California

Nephrology is Dr. Nguyen's primary specialty in the NPI Registry, under taxonomy code 207RN0300X. Dr. Nguyen is board certified in internal medicine by the American Board of Internal Medicine. Dr. Nguyen is licensed in California.

Specialties and state licenses

  • Nephrology, CaliforniaPrimaryLicense A124779 · 2013 to 2027 · taxonomy 207RN0300X

Clinical focus

Dmand AI lists chronic kidney disease and fluid and electrolyte imbalances among the conditions Dr. Nguyen treats.

Nephrologists near Dr. Nguyen

Counts of nephrologists with a Dmand AI profile, by place and practice. Each opens the list.

1,401nephrologists in California
5nephrologists in Corona

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. Charles Nguyen billed Medicare for 1,929 services in 2024

CMS data shows 1,929 Medicare services from Dr. Nguyen across 11 procedure codes in 2024, for 382 Medicare patients. Medicare paid $150,546 for them.

Medicare services, 20241,929
Medicare patients382
Paid by Medicare$150,546
Procedure codes11

Dr. Nguyen's Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Office and hospital visits
2023: 1,3982024: 1,5058%
Tests and treatments
2023: 2682024: 22715%
Other services
2023: 02024: 197

Where Dr. Nguyen's Medicare services took place, 2024

  • In an office71037%
  • In a facility1,21963%

Dr. Nguyen compared with the California median for nephrologists, 2024

  • Dr. Nguyen
  • California median
Medicare services
1,929vs 1,08478% above
Medicare patients
382vs 30724% above
Part D claims
3,262vs 9553.4 times

Medians across 1,355 nephrologists in California with Dmand AI profiles that report each measure.

Dr. Nguyen's most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Nguyen

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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nguyen and other nephrologists in California.

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Charles Nguyen treated 382 Medicare patients in 2024, average age 72

CMS counts 382 Medicare patients who saw Dr. Nguyen in 2024. The largest group is 65 to 74, with 117 patients. 75% of them have chronic kidney disease, and 75% have diabetes. 70% are also on Medicaid. Their average risk score is 5.14, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.

Across all payers, Dmand AI patient panel data puts Dr. Nguyen's median patient age at 69, with 50% women.

Medicare patients, 2024382
Average age72
Average risk score5.14
Also on Medicaid70%

Dr. Nguyen's Medicare patients by age, 2024

Dr. Nguyen's Medicare patients by sex, 2024

  • Women19752%
  • Men18548%

Chronic conditions among Dr. Nguyen's Medicare patients, 2024

  1. Chronic kidney disease75%
  2. Diabetes75%
  3. High blood pressure75%
  4. High cholesterol75%
  5. Heart failure62%
  6. Ischemic heart disease47%
  7. Arthritis44%
  8. Mood disorders43%

Share of Medicare patients with each condition. A patient can have several.

Dr. Nguyen's patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 69

Patient panel by sex, all payers

  • Women50%
  • Men50%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. Charles Nguyen wrote 3,489 Medicare Part D claims in 2024

In 2024, Dr. Nguyen wrote 3,489 Medicare Part D claims for 408 patients. 66% of them were for generic drugs. CMS names the drug for 3,262 of them, across 59 drugs with 11 or more claims each, at $957,734 in total drug cost. In 2023, CMS named 2,778 claims across 51 drugs.

Part D claims, 20243,489
Drugs named by CMS59
Total drug cost$957,734
Part D patients408

Dr. Nguyen's Part D claims by kind of drug, 2024

  • Generic2,318 claims66%
  • Brand-name1,035 claims30%
  • Other136 claims4%

Dr. Nguyen's most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Nguyen's Part D claims, 2024

  • Antibiotics2%74 of 3,489 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 2,7782024: 3,26217%

Drugs named by CMS: 59 in 2024, 51 in 2023.

See all prescribing by Dr. Nguyen

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

How Dr. Charles Nguyen takes part in Medicare

Dr. Nguyen accepts Medicare assignment, so Medicare's approved amount is taken as full payment.

Accepts Medicare assignment
Yes

Source: Doctors and Clinicians National Downloadable File (CMS)

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Dr. Charles Nguyen received $7,239 in industry payments from 2016 to 2025

CMS Open Payments shows 303 general payments to Dr. Nguyen from 35 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 98% of the total. AstraZeneca Pharmaceuticals LP paid the most, $1,178.

General payments to Dr. Nguyen by program year, 2016 to 2025

General payments to Dr. Nguyen by kind, 2016 to 2025

$7.2Kin total
  • Food and beverage$7,10298%
  • Education$1362%

Companies that paid Dr. Nguyen the most, 2016 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Nguyen

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. Charles Nguyen graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science

Dr. Nguyen graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 2011. Dr. Nguyen is a member of ASN.

  1. Medical schoolChicago Medical School at Rosalind Franklin University of Medicine and Science
  2. Board certified in internal medicineAmerican Board of Internal Medicine
  3. Board certified in nephrologyAmerican Board of Internal Medicine

Source: Dmand AI Professional Profile Data

Dr. Charles Nguyen accepts plans from 9 insurance carriers

Dr. Nguyen is in network with 9 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

Plan types Dr. Nguyen accepts, by number of carriers

  1. Medicare9
  2. PPO7
  3. HMO5
  4. POS3
  5. EPO2

Source: Dmand AI Insurance Network Data

Sources for Dr. Charles Nguyen's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
Insurance carriers and plan typesDmand AI Insurance Network Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. Charles Nguyen

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. Charles Nguyen's NPI number?

Dr. Charles Nguyen's NPI number is 1538400288. It was assigned on March 5, 2013, and it is active in the NPI Registry.

What kind of doctor is Dr. Charles Nguyen?

Dr. Charles Nguyen is a nephrologist in Corona, California. The primary specialty in the NPI Registry is Nephrology Physician (taxonomy code 207RN0300X).

Where does Dr. Charles Nguyen practice?

Dr. Nguyen practices at 2057 Compton Avenue, Suite #101, Corona, CA 92881. Dr. Nguyen's primary practice is DaVita Corona Dialysis Center in Corona, California. Dmand AI also links Dr. Nguyen to 3 hospitals, 3 dialysis centers, 1 group practice or clinic and 1 medical group.

What is Dr. Charles Nguyen's office phone number?

The practice phone on file for Dr. Nguyen is (951) 735-5845.

What is Dr. Charles Nguyen's medical license number?

Dr. Nguyen holds California license A124779.

Which hospitals is Dr. Charles Nguyen affiliated with?

Dr. Nguyen is affiliated with Corona Regional Medical Center. Dmand AI links Dr. Nguyen to 3 more hospitals.

What medical group is Dr. Charles Nguyen part of?

Dr. Nguyen is linked to Nephrology Associates Medical Group. Dmand AI links Dr. Nguyen to 1 more medical group.

Does Dr. Charles Nguyen accept Medicare?

Yes. CMS data shows Dr. Nguyen billed Medicare for 1,929 services in 2024, and Dr. Nguyen accepts Medicare assignment.

How many Medicare patients does Dr. Charles Nguyen see?

CMS counts 382 Medicare patients who saw Dr. Nguyen in 2024, with an average age of 72.

Is Dr. Charles Nguyen board certified?

Yes. Dr. Nguyen is board certified in internal medicine by the American Board of Internal Medicine.

Show 6 more questionsShow fewer questions

What services does Dr. Charles Nguyen bill to Medicare?

In 2024, Dr. Nguyen's most billed Medicare services were hospital inpatient care (99232), office visit, established patient (99214) and hospital inpatient care (99233).

Where did Dr. Charles Nguyen go to medical school?

Dr. Nguyen graduated from Chicago Medical School at Rosalind Franklin University of Medicine and Science in 2011.

What drugs does Dr. Charles Nguyen prescribe most?

In 2024 Medicare Part D data, Dr. Nguyen's most prescribed drugs by claims were Farxiga, Calcitriol and Furosemide.

Has Dr. Charles Nguyen received payments from drug or device companies?

CMS Open Payments shows $7,239 in general payments to Dr. Nguyen from 35 companies from 2016 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.

How long has Dr. Charles Nguyen been practicing?

Dr. Nguyen graduated from medical school in 2011, 15 years ago.

What insurance does Dr. Charles Nguyen accept?

Dr. Nguyen is in network with 9 carriers, including Aetna, Elevance and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 9. Check the plan with the practice before a visit.

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