Dr. Peter Hung Nguyen, MD

  • Orange, CA
  • Hospitalist
NPI1407483787PAC ID4082091384
Medicare services, 2024
149
Medicare patients, 2024
58
Part D claims, 2024
84
Hospital affiliations
1
Industry payments
$492
Practice address
101 City Drive South, Orange, CA 92868
Practice phone
Call (714) 456-7890
Professional email
Get professional email
Personal email
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Mobile number
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Social profiles

Primary practice

UCI Health - Orange

Hospital · Orange, California

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Dr. Peter Hung Nguyen is a hospitalist in Orange, California

Dr. Nguyen practices at UCI Health - Orange in Orange, California, part of UC Irvine.

Dr. Nguyen's NPI, 1407483787, was assigned on March 25, 2020. Dr. Nguyen graduated from Eastern Virginia Medical School in 2020. Dr. Nguyen holds California license A180796.

NPI and contact details
Medicare PAC ID
4082091384
NPI enumeration date
March 25, 2020
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(714) 456-7890
Professional email
Get email
Personal email
Get email
Mobile number
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Sex
Male
Estimated age
32
Medical school graduation
2020

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

Dr. Peter Hung Nguyen practices at UCI Health - Orange in Orange, California

Dr. Nguyen's primary practice is UCI Health - Orange, at 101 City Drive South, Orange, CA 92868 in Orange County. The practice phone is (714) 456-7890.

  • UCI Health - Orange
    101 City Drive South, Orange, CA 92868 · Orange CountyPhone(714) 456-7890

Source: Dmand AI Affiliation Data

Dr. Peter Hung Nguyen is affiliated with 1 site of care and 1 medical group

Dr. Nguyen's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine. The medical group on file is UCI Health.

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

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

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

EHR by site
SiteEHR vendor and product
UCI Health - OrangeAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. Peter Hung Nguyen is one of 3,186 hospitalists in California

Hospitalist is Dr. Nguyen's primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dr. Nguyen is licensed in California.

Specialties and state licenses

  • Hospitalist, CaliforniaPrimaryLicense A180796 · taxonomy 208M00000X

Hospitalists near Dr. Nguyen

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

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

Dr. Peter Hung Nguyen billed Medicare for 149 services in 2024

CMS data shows 149 Medicare services from Dr. Nguyen across 4 procedure codes in 2024, for 58 Medicare patients. Medicare paid $13,238 for them. Every service was in a facility, such as a hospital, rather than an office.

Medicare services, 2024149
Medicare patients58
Paid by Medicare$13,238
Procedure codes4

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

  • 2023
  • 2024
Office and hospital visits
2023: 1422024: 1495%

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

  • Dr. Nguyen
  • California median
Medicare services
149vs 43065% below
Medicare patients
58vs 20171% below
Part D claims
12vs 6983% below

Medians across 2,991 hospitalists 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. Peter Hung Nguyen treated 58 Medicare patients in 2024, average age 75

CMS counts 58 Medicare patients who saw Dr. Nguyen in 2024. The largest group is 65 to 74, with 19 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 67% are also on Medicaid. Their average risk score is 3.48, 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 55, with 52% women.

Medicare patients, 202458
Average age75
Average risk score3.48
Also on Medicaid67%

Dr. Nguyen's Medicare patients by age, 2024

CMS leaves out age groups with fewer than 11 patients.

Dr. Nguyen's Medicare patients by sex, 2024

  • Women2340%
  • Men3560%

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

  1. High blood pressure75%
  2. High cholesterol75%
  3. Diabetes66%
  4. Chronic kidney disease57%
  5. Heart failure52%
  6. Ischemic heart disease48%
  7. Arthritis45%
  8. Atrial fibrillation40%

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 55

Patient panel by sex, all payers

  • Women52%
  • Men45%

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

Dr. Peter Hung Nguyen wrote 84 Medicare Part D claims in 2024

In 2024, Dr. Nguyen wrote 84 Medicare Part D claims for 30 patients. 79% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $211 in total drug cost. In 2022, CMS named 28 claims across 2 drugs.

Part D claims, 202484
Drugs named by CMS1
Total drug cost$211
Part D patients30

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

  • Generic66 claims79%
  • Brand-name18 claims21%

Dr. Nguyen's most prescribed drugs by claims, 2023

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

  • Antibiotics17%14 of 84 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, 2022 to 2023

  • 2022
  • 2023
Claims for drugs CMS names
2022: 282023: 1257%

Drugs named by CMS: 1 in 2023, 2 in 2022.

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. Peter Hung 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. Peter Hung Nguyen received $492 in industry payments from 2024 to 2025

CMS Open Payments shows 5 general payments to Dr. Nguyen from 4 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. AstraZeneca Pharmaceuticals LP paid the most, $134.

General payments to Dr. Nguyen by program year, 2024 to 2025

Companies that paid Dr. Nguyen the most, 2024 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. Peter Hung Nguyen graduated from Eastern Virginia Medical School

Dr. Nguyen graduated from Eastern Virginia Medical School in 2020.

  1. Medical schoolEastern Virginia Medical School

Source: Dmand AI Professional Profile Data

Sources for Dr. Peter Hung 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
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. Peter Hung 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. Peter Hung Nguyen's NPI number?

Dr. Peter Hung Nguyen's NPI number is 1407483787. It was assigned on March 25, 2020, and it is active in the NPI Registry.

What kind of doctor is Dr. Peter Hung Nguyen?

Dr. Peter Hung Nguyen is a hospitalist in Orange, California. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).

Where does Dr. Peter Hung Nguyen practice?

Dr. Nguyen practices at 101 City Drive South, Orange, CA 92868. Dr. Nguyen's primary practice is UCI Health - Orange in Orange, California, part of UC Irvine.

What is Dr. Peter Hung Nguyen's office phone number?

The practice phone on file for Dr. Nguyen is (714) 456-7890.

What is Dr. Peter Hung Nguyen's medical license number?

Dr. Nguyen holds California license A180796.

Which hospitals is Dr. Peter Hung Nguyen affiliated with?

Dr. Nguyen practices at UCI Health - Orange in Orange, California.

What medical group is Dr. Peter Hung Nguyen part of?

Dr. Nguyen is linked to UCI Health.

Does Dr. Peter Hung Nguyen accept Medicare?

Yes. CMS data shows Dr. Nguyen billed Medicare for 149 services in 2024, and Dr. Nguyen accepts Medicare assignment.

How many Medicare patients does Dr. Peter Hung Nguyen see?

CMS counts 58 Medicare patients who saw Dr. Nguyen in 2024, with an average age of 75.

What services does Dr. Peter Hung Nguyen bill to Medicare?

In 2024, Dr. Nguyen's most billed Medicare services were hospital inpatient care (99233), hospital inpatient care (99232) and hospital inpatient care (99238).

Show 4 more questionsShow fewer questions

Where did Dr. Peter Hung Nguyen go to medical school?

Dr. Nguyen graduated from Eastern Virginia Medical School in 2020.

What drugs does Dr. Peter Hung Nguyen prescribe most?

In 2023 Medicare Part D data, Dr. Nguyen's most prescribed drugs by claims were Losartan Potassium.

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

CMS Open Payments shows $492 in general payments to Dr. Nguyen from 4 companies from 2024 to 2025. The largest total came from AstraZeneca Pharmaceuticals LP.

How long has Dr. Peter Hung Nguyen been practicing?

Dr. Nguyen graduated from medical school in 2020, 6 years ago.

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