Isaac H. Chu, D.O.
Emergency Medicine Physician · Santa Monica, CA
Isaac H. Chu, D.O. is an emergency medicine physician with a practice address in Santa Monica, California, and NPI 1295963254, issued on Jun 29, 2009. Check the license (California 20A11888, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Isaac H. Chu
- Credential
- D.O.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License numbers
- 20A11888 CA
262605 NY
Self-reported in NPPES; status is on the state search - Practice location
- 2121 Santa Monica Blvd, Santa Monica, CA 90404
- Phone
- (310) 829-8212
- Enumerated
- Jun 29, 2009
- Record last updated
- Dec 2, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20120803000104); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 2121 Santa Monica Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Maia Aronson, P.A.Physician Assistant1861762882
- Daniel ArtensteinStudent in an Organized Health Care Education/Training Program1023402310
- Bita Azizi, RDRegistered Dietitian1861797839
Verify Isaac H. Chu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A11888Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
34% more Medicare Part D claims than the average emergency medicine physician in 2024
303 Medicare Part D claims for 240 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 36 claims were for opioids.
Most prescribed
- Cefadroxil37 claims
- Prednisone35 claims
- Hydrocodone-Acetaminophen26 claims
- Ondansetron Odt23 claims
- Amoxicillin-Clavulanate Potass13 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
- Southern California Permanente Medical GroupHarbor City, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Isaac H. Chu among 7,751 emergency medicine physician records in California
Isaac H. Chu, D.O. 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 2009, is newer than 54% of them.
- NPI issued2009 · 54% of these records are older, 42% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 59% of these records are
- Graduated2009 · median 2011 among the 4,560 with a school on file
- Record last updated2021 · 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).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Santa Monica → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Isaac Bash, MDSanta Monica, CA 904041619934643
- Victor Candioty, MDSanta Monica, CA 904041437116472
- Michelle Charfen, M.D.Santa Monica, CA 904041588602486
- Edward Cotner, MDSanta Monica, CA 904041023074044
- Patricia Drum-Lal, PACSanta Monica, CA 904041639136674
- Walid Ghurabi, D.O.Santa Monica, CA 904041073566931
- Daniel Grossman, MDSanta Monica, CA 904041386601326
- Amy Kijner, PASanta Monica, CA 904041235197849
Common questions
What is Isaac H. Chu, D.O.'s NPI number?
Isaac H. Chu, D.O.'s National Provider Identifier (NPI) is 1295963254, issued on Jun 29, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Isaac H. Chu, D.O. located?
The NPPES record lists a practice address at 2121 Santa Monica Blvd, Santa Monica, CA, 90404. Phone: (310) 829-8212. Providers update this record themselves, so call before visiting.
How can I verify Isaac H. Chu, D.O.'s license?
NPPES lists California license number 20A11888, 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 Isaac H. Chu, D.O. prescribe under Medicare Part D?
In 2024, Isaac H. Chu, D.O. had 303 Medicare Part D claims for 240 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.