NPPES file of Aug 9, 2026

Pai-Hsiang Chen, D.O

Internal Medicine Physician · Arcadia, CA

Pai-Hsiang Chen, D.O is an internal medicine physician with a practice address in Arcadia, California, and NPI 1063405892, issued on Aug 26, 2005. Check the license (California 20A7219, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1063405892
Name
Pai-Hsiang Chen
Credential
D.O
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
20A7219 CA
Self-reported in NPPES; status is on the state search
Practice location
301 W Huntington Dr, Arcadia, CA 91007
Phone
(626) 446-2360
Enumerated
Aug 26, 2005
Record last updated
Sep 28, 2017 (not updated in 9 years: call before relying on the address or phone)
Fax
(626) 446-2370
Medicare enrollment
Enrolled (PECOS I20040216001257); accepts Medicare assignment
Medical or professional school
At Still University Of Health Sciences, College Of Osteo Med, Kirksville, 1997
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 301 W Huntington Dr

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mara Arnold, DDSDentist1558913533
  2. David Bae, DPMPodiatrist1093811077
  3. Peter Browne, M.D.Pulmonary Disease Physician1730156670
  4. Timothy Centola, PTPhysical Therapist1205126372
  5. James Chuang, MDRadiation Oncology Physician1720195977
  6. Linda Duong, PHARMDPharmacist1376913764

Verify Pai-Hsiang Chen in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A7219
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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2.4 times the Medicare Part D claims of the average internal medicine physician in 2024

7,668 Medicare Part D claims for 640 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 8% of claims. 17 claims were for opioids.

  1. Pai-Hsiang Chen7,668
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium750 claims
  2. Amlodipine Besylate510 claims
  3. Azithromycin363 claims
  4. Losartan Potassium337 claims
  5. Alendronate Sodium315 claims
  6. Olmesartan Medoxomil300 claims

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.

Industry payments in 2024: $2,347.69

30 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Pai-Hsiang Chen$2,347.69
  2. Specialty average$1,303.06

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

74 internal medicine physician records list a practice address in Arcadia

They are 74 of the 2,033 NPPES records with a practice address in Arcadia, and 17,696 internal medicine physician records in California.

Other internal medicine physician records in California

  1. Jacob Aaron, MDSan Francisco, CA1407202518
  2. Alistair Aaronson, MDStanford, CA1457628760
  3. Jose Abad., MDSacramento, CA1144607219
  4. Donna Abare, MDOakland, CA1386722155
  5. Marce AbareScotts Valley, CA1457744708
  6. Samuel Abarte, M.D.Chula Vista, CA1578535498
  7. Alexander Abary, MDLong Beach, CA1104995919
  8. Luba Abascal, MDSan Francisco, CA1023180874
  9. Michael Abate, MDSacramento, CA1548248131
  10. Wali Abawi, D.O.Joshua Tree, CA1104362268

Common questions

What is Pai-Hsiang Chen, D.O's NPI number?

Pai-Hsiang Chen, D.O's National Provider Identifier (NPI) is 1063405892, issued on Aug 26, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Pai-Hsiang Chen, D.O located?

The NPPES record lists a practice address at 301 W Huntington Dr, Arcadia, CA, 91007. Phone: (626) 446-2360. Providers update this record themselves, so call before visiting.

How can I verify Pai-Hsiang Chen, D.O's license?

NPPES lists California license number 20A7219, 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 Pai-Hsiang Chen, D.O prescribe under Medicare Part D?

In 2024, Pai-Hsiang Chen, D.O had 7,668 Medicare Part D claims for 640 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions 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.