Ann Du, PAC
Physician Assistant · West Covina, CA
Ann Du, PAC is a physician assistant with a practice address in West Covina, California, and NPI 1841382314, issued on Sep 29, 2006. Check the license (California PA16705, as entered in NPPES) with the California board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Ann Du
- Credential
- PAC
- Primary taxonomy
- Physician Assistant 363A00000X
- License number
- PA16705 CA
Self-reported in NPPES; status is on the state search - Practice location
- 420 S Glendora Ave, West Covina, CA 91790
- Phone
- (626) 919-4333
- Enumerated
- Sep 29, 2006
- Record last updated
- Jun 24, 2016 (not updated in 10 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20160707002179); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest physician assistant records → All 14,451 in California → Look up another NPI →
Also registered at 420 S Glendora Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Denisee Alonso, RDRegistered Dietitian1881283083
- Kimberly Amato, PACPhysician Assistant1477505014
- Lynn Amores, MDFamily Medicine Physician1063553618
- Javanne Brooks, FNPFamily Nurse Practitioner1760884654
- Connie Cajavilca-Torres, MDFamily Medicine Physician1508342924
Verify Ann Du in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich California board licenses this profession
Search for license PA16705Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $27.33
1 payment: food and beverage; the largest payer was Novo Nordisk Inc. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- East Valley Community Health Center, Inc.Pomona, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ann Du among 14,451 physician assistant records in California
Ann Du, PAC is one of 14,451 physician assistant records with a practice address in California. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 1% of them.
- NPI issued2006 · 1% of these records are older, 87% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated2002 · median 2018 among the 7,214 with a school on file
- Record last updated2016 · 40% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
51 physician assistant records list a practice address in West Covina
They are 51 of the 2,450 NPPES records with a practice address in West Covina, and 14,451 physician assistant records in California.
All 14,451 in California → Every provider in West Covina → Physician Assistant nationwide →
The 8 physician assistant records with the nearest ZIP codes
- Kimberly Amato, PACWest Covina, CA 917901477505014
- Patricia Breen-McDonoughWest Covina, CA 917901861484685
- Darrell Carter, P.A.West Covina, CA 917901407047756
- Patrick Duke, PA-CWest Covina, CA 917901619990447
- Diana Fernandez, P.A.West Covina, CA 917901235377367
- Amalia Galvez Tristan, PA-CWest Covina, CA 917901750566410
- Miriam Ha, P.A.West Covina, CA 917901013045558
- Ronald Martinez, PAWest Covina, CA 917901912954348
Common questions
What is Ann Du, PAC's NPI number?
Ann Du, PAC's National Provider Identifier (NPI) is 1841382314, issued on Sep 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ann Du, PAC located?
The NPPES record lists a practice address at 420 S Glendora Ave, West Covina, CA, 91790. Phone: (626) 919-4333. Providers update this record themselves, so call before visiting.
How can I verify Ann Du, PAC's license?
NPPES lists California license number PA16705, as entered by the provider. Search the California board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 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.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.