Dr. Chibao L. Nguyen, DO
- Medicare services, 2024
- 191
- Medicare patients, 2024
- 74
- Part D claims, 2024
- 254
- Hospital affiliations
- 2
- Industry payments
- $401
- Practice address
- 100 W. California Blvd, Pasadena, CA 91105
- Practice phone
- Call (626) 397-2618
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Huntington Hospital - Unit
Acute Care Hospital-Unit · Pasadena, California
Find Dr. Nguyen's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Chibao L. Nguyen is an internist in Pasadena, California
Dr. Nguyen practices at Huntington Hospital - Unit in Pasadena, California.
Dr. Nguyen's NPI, 1528370830, was assigned on July 2, 2010. Dr. Nguyen graduated from Arizona College of Osteopathic Medicine - Glendale in 2008. Dr. Nguyen holds California license 20A11299.
- NPI
- 1528370830NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9436316635
- NPI enumeration date
- July 2, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (626) 397-2618
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 44
- Medical school graduation
- 2008
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Chibao L. Nguyen practices at Huntington Hospital - Unit in Pasadena, California
Dr. Nguyen's primary practice is Huntington Hospital - Unit, at 100 W. California Blvd, Pasadena, CA 91105 in Los Angeles County. The practice phone is (626) 397-2618.
- Huntington Hospital - Unit100 W. California Blvd, Pasadena, CA 91105 · Los Angeles CountyPhone(626) 397-2618
Source: Dmand AI Affiliation Data
Dr. Chibao L. Nguyen is affiliated with 4 sites of care and 6 medical groups
Dr. Nguyen's primary practice is Huntington Hospital - Unit in Pasadena, California. Dr. Nguyen is also affiliated with UCI Health - Orange. The medical group on file is Optum - Downtown Los Angeles. Dmand AI also links Dr. Nguyen to 5 more medical groups and 2 group practices and clinics, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Chibao L. Nguyen's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Nguyen practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Huntington Hospital - Unit | Available with a free account |
| +3 more sites and 5 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Chibao L. Nguyen is one of 16,751 internists in California
Internal medicine is Dr. Nguyen's primary specialty in the NPI Registry, under taxonomy code 207R00000X. 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
- Internal medicine, CaliforniaPrimary
Clinical focus
Dmand AI lists acute stomach ulcer, cardiac arrhythmia, congestive heart failure, gastrointestinal bleeding, gastrointestinal obstruction, kidney failure, liver disease and lung disease: COPD, asthma or bronchitis among the conditions Dr. Nguyen treats.
Internists near Dr. Nguyen
Counts of internists 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. Chibao L. Nguyen billed Medicare for 191 services in 2024
CMS data shows 191 Medicare services from Dr. Nguyen across 4 procedure codes in 2024, for 74 Medicare patients. Medicare paid $15,239 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Nguyen's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1592024: 19120%
Dr. Nguyen compared with the California median for internists, 2024
- Dr. Nguyen
- California median
- Medicare services
- 191vs 36147% below
- Medicare patients
- 74vs 15151% below
- Part D claims
- 41vs 42190% below
Medians across 15,815 internists 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.
Need commercial claims for Dr. Nguyen?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Nguyen and other internists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Chibao L. Nguyen treated 74 Medicare patients in 2024, average age 73
CMS counts 74 Medicare patients who saw Dr. Nguyen in 2024. The largest group is 65 to 74, with 24 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 66% are also on Medicaid. Their average risk score is 2.89, 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 73, with 51% women.
Dr. Nguyen's Medicare patients by age, 2024
Dr. Nguyen's Medicare patients by sex, 2024
- Women4257%
- Men3243%
Chronic conditions among Dr. Nguyen's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Diabetes61%
- Arthritis59%
- Heart failure58%
- Mood disorders54%
- Chronic kidney disease53%
- Ischemic heart disease50%
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 73
Patient panel by sex, all payers
- Women51%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Chibao L. Nguyen wrote 254 Medicare Part D claims in 2024
In 2024, Dr. Nguyen wrote 254 Medicare Part D claims for 103 patients. 84% of them were for generic drugs. CMS names the drug for 41 of them, across 3 drugs with 11 or more claims each, at $16,593 in total drug cost. In 2023, CMS named 25 claims across 2 drugs.
Dr. Nguyen's Part D claims by kind of drug, 2024
- Generic213 claims84%
- Brand-name and other41 claims16%
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
- Antibiotics20%50 of 254 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: 252024: 4164%
Drugs named by CMS: 3 in 2024, 2 in 2023.
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. Chibao L. 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. Chibao L. Nguyen received $401 in industry payments from 2017 to 2025
CMS Open Payments shows 11 general payments to Dr. Nguyen from 5 drug and device companies from 2017 to 2025. Food and beverage make up the largest share, 100% of the total. Janssen Pharmaceuticals, Inc paid the most, $186.
General payments to Dr. Nguyen by program year, 2017 to 2025
Companies that paid Dr. Nguyen the most, 2017 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Chibao L. Nguyen graduated from Arizona College of Osteopathic Medicine - Glendale
Dr. Nguyen graduated from Arizona College of Osteopathic Medicine - Glendale in 2008.
- Medical school
- Board certified in internal medicine
Source: Dmand AI Professional Profile Data
Dr. Chibao L. Nguyen accepts plans from 7 insurance carriers
Dr. Nguyen is in network with 7 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
- Blue Cross Blue Shield of Michigan
- Blue Cross Blue Shield of Massachusetts
- HCSC
- Regence Health Plans
- CMS Medicare
- Molina
- NV State Medicaid
Plan types Dr. Nguyen accepts, by number of carriers
- Medicare6
- PPO4
- HMO1
- Medicaid1
- POS1
Source: Dmand AI Insurance Network Data
Sources for Dr. Chibao L. Nguyen's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare 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 percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Chibao L. 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. Chibao L. Nguyen's NPI number?
Dr. Chibao L. Nguyen's NPI number is 1528370830. It was assigned on July 2, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Chibao L. Nguyen?
Dr. Chibao L. Nguyen is an internist in Pasadena, California. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Chibao L. Nguyen practice?
Dr. Nguyen practices at 100 W. California Blvd, Pasadena, CA 91105. Dr. Nguyen's primary practice is Huntington Hospital - Unit in Pasadena, California. Dmand AI also links Dr. Nguyen to 5 medical groups and 2 group practices and clinics.
What is Dr. Chibao L. Nguyen's office phone number?
The practice phone on file for Dr. Nguyen is (626) 397-2618.
What is Dr. Chibao L. Nguyen's medical license number?
Dr. Nguyen holds California license 20A11299.
Which hospitals is Dr. Chibao L. Nguyen affiliated with?
Dr. Nguyen is affiliated with UCI Health - Orange. Dmand AI links Dr. Nguyen to 1 more hospital.
What medical group is Dr. Chibao L. Nguyen part of?
Dr. Nguyen is linked to Optum - Downtown Los Angeles. Dmand AI links Dr. Nguyen to 5 more medical groups.
Does Dr. Chibao L. Nguyen accept Medicare?
Yes. CMS data shows Dr. Nguyen billed Medicare for 191 services in 2024, and Dr. Nguyen accepts Medicare assignment.
How many Medicare patients does Dr. Chibao L. Nguyen see?
CMS counts 74 Medicare patients who saw Dr. Nguyen in 2024, with an average age of 73.
Is Dr. Chibao L. 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. Chibao L. Nguyen bill to Medicare?
In 2024, Dr. Nguyen's most billed Medicare services were hospital inpatient care (99232), hospital inpatient care (99233) and hospital inpatient care (99239).
Where did Dr. Chibao L. Nguyen go to medical school?
Dr. Nguyen graduated from Arizona College of Osteopathic Medicine - Glendale in 2008.
What drugs does Dr. Chibao L. Nguyen prescribe most?
In 2024 Medicare Part D data, Dr. Nguyen's most prescribed drugs by claims were Pantoprazole Sodium, Metoprolol Succinate and Jardiance.
Has Dr. Chibao L. Nguyen received payments from drug or device companies?
CMS Open Payments shows $401 in general payments to Dr. Nguyen from 5 companies from 2017 to 2025. The largest total came from Janssen Pharmaceuticals, Inc.
How long has Dr. Chibao L. Nguyen been practicing?
Dr. Nguyen graduated from medical school in 2008, 18 years ago.
What insurance does Dr. Chibao L. Nguyen accept?
Dr. Nguyen is in network with 7 carriers, including Blue Cross Blue Shield of Michigan, Blue Cross Blue Shield of Massachusetts and HCSC. Medicare plans come from the most carriers, 6. Check the plan with the practice before a visit.
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