An Nguyen
Hospitalist Physician · Irvine, CA
An Nguyen is a hospitalist physician with a practice address in Irvine, California, and NPI 1609434414, issued on Jun 5, 2019. Check the license (California A179690, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- An Nguyen
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A179690 CA
Self-reported in NPPES; status is on the state search - Practice location
- 16200 Sand Canyon Ave, Irvine, CA 92618
- Phone
- (888) 655-8463
- Enumerated
- Jun 5, 2019
- Entity
- Type 1 · individual
Also registered at 16200 Sand Canyon Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christine AyalaNurse Practitioner1831879154
- Nicholas Bove, MDEmergency Medicine Physician1255837837
- David Calica, M.D.Anesthesiology Physician1780787606
- Danielle CarlsonRegistered Nurse1710850409
- John Chien, M.D.Hospitalist Physician1790043651
- Michael Cho, M.D.Internal Medicine Physician1184915001
Verify An Nguyen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A179690Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
96% fewer Medicare Part D claims than the average hospitalist physician in 2024
40 Medicare Part D claims for 15 beneficiaries, against an average of 940 among the 13,923 providers of this specialty who prescribed in Part D.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The Medicare quality score for 2023: 84.9 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
One hospital or facility affiliation
- Pacific Hospitalist Associates A Medical CorporationIrvine, CA
Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Hospitalist Physician providers in California
There are 1,901 hospitalist physician records in California.
Other hospitalist physician records in California
- Zina Abbas, M.D.Chula Vista, CA1962799189
- Mehrdad Abbasi, MDRancho Mirage, CA1477646776
- Abdul Abdali, M.D.French Camp, CA1104319771
- Anwar Abdelhadi, M.D.Orange, CA1093784191
- Farid Abdelmalak, M.D.Santa Monica, CA1912392937
- Joseph Abdelmalek, M.DSan Diego, CA1740485531
- Elijah AbdelmeseehLong Beach, CA1346827631
- Homayoun Abdollahzadeh, M.D.Rancho Mirage, CA1871802454
- Merna AbdouSan Diego, CA1134758279
- Rafik Abdou, M.DMission Hills, CA1740594415
Common questions
What is An Nguyen's NPI number?
An Nguyen's National Provider Identifier (NPI) is 1609434414, issued on Jun 5, 2019. An NPI identifies a provider in billing; it is not a license.
Where is An Nguyen located?
The NPPES record lists a practice address at 16200 Sand Canyon Ave, Irvine, CA, 92618. Phone: (888) 655-8463. Providers update this record themselves, so call before visiting.
How can I verify An Nguyen's license?
NPPES lists California license number A179690, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does An Nguyen prescribe under Medicare Part D?
In 2024, An Nguyen had 40 Medicare Part D claims for 15 beneficiaries; the average among hospitalist physician prescribers was 940. Part D covers Medicare prescriptions only.
What is An Nguyen's Medicare quality score?
The 2023 MIPS final score is 84.9 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.