Alexander Tijong Chen, DO
Emergency Medicine Physician · Fresno, CA
Alexander Tijong Chen, DO is an emergency medicine physician with a practice address in Fresno, California, and NPI 1437851847, issued on Mar 20, 2023. Check the license (California 23720, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alexander Tijong Chen
- Credential
- DO
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- 23720 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2823 Fresno St, Fresno, CA 93721
- Phone
- (559) 443-2682
- Enumerated
- Mar 20, 2023
- Record last updated
- Jun 8, 2026
- Medicare enrollment
- Enrolled (PECOS I20250520002574); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 2823 Fresno St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Shahrin Abdalian, NPAcute Care Nurse Practitioner1043716186
- Mariam Abdelkader, MDCritical Care Medicine (Internal Medicine) Physician1689022824
- Majdi Abdulmaula, M.DInternal Medicine Physician1295260529
- Reema Aboelrish, PA-CMedical Physician Assistant1376466144
- Reem Aboushaar, MDPediatrics Physician1013543933
- Inas Abukraa, M.DFamily Medicine Physician1376115881
Verify Alexander Tijong Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 23720Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
46% fewer Medicare Part D claims than the average emergency medicine physician in 2024
121 Medicare Part D claims for 79 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
Most prescribed
- Albuterol Sulfate Hfa14 claims
- Cephalexin13 claims
- Doxycycline Hyclate12 claims
- Prednisone12 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.
Bills Medicare through one group practice
- Cep America - CaliforniaTracy, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexander Tijong Chen among 7,751 emergency medicine physician records in California
Alexander Tijong Chen, DO is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 98% of them.
- NPI issued2023 · 98% of these records are older, under 1% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2023 · median 2011 among the 4,560 with a school on file
- Record last updated2026 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
228 emergency medicine physician records list a practice address in Fresno
They are 228 of the 19,440 NPPES records with a practice address in Fresno, and 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Fresno → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Janak Acharya, MDFresno, CA 937211376508721
- James Andrews, MDFresno, CA 937211629086269
- Herbert Bivins, MDFresno, CA 937211972619518
- Brian Chinnock, M.D.Fresno, CA 937211861481947
- Carolyn Chooljian, MDFresno, CA 937211982656807
- James Comes, MDFresno, CA 937211669424412
- Michael Darracq, M.D.Fresno, CA 937211275553414
- Ryan Ernst, MD, PA-CFresno, CA 937211396787289
Common questions
What is Alexander Tijong Chen, DO's NPI number?
Alexander Tijong Chen, DO's National Provider Identifier (NPI) is 1437851847, issued on Mar 20, 2023. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Tijong Chen, DO located?
The NPPES record lists a practice address at 2823 Fresno St, Fresno, CA, 93721. Phone: (559) 443-2682. Providers update this record themselves, so call before visiting.
How can I verify Alexander Tijong Chen, DO's license?
NPPES lists California license number 23720, 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 Alexander Tijong Chen, DO prescribe under Medicare Part D?
In 2024, Alexander Tijong Chen, DO had 121 Medicare Part D claims for 79 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.