James Chou, M.D.
Hospitalist Physician · Harbor City, CA
James Chou, M.D. is a hospitalist physician with a practice address in Harbor City, California, and NPI 1396916003, issued on Mar 20, 2008. Check the license (California A93266, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- James Chou
- Credential
- M.D.
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A93266 CA
Self-reported in NPPES; status is on the state search - Practice location
- 25825 Vermont Ave, Harbor City, CA 90710
- Phone
- (310) 325-5111
- Enumerated
- Mar 20, 2008
- Record last updated
- Dec 3, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20081007000682); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 25825 Vermont Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Yossef Aelony, MDPulmonary Disease Physician1619178597
- Lisa Agustines, MDObstetrics & Gynecology Physician1750452736
Verify James Chou in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A93266Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
54% fewer Medicare Part D claims than the average hospitalist physician in 2024
241 Medicare Part D claims for 75 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D. Brand-name drugs were 21% of claims.
Most prescribed
- Furosemide24 claims
- Hydroxyzine Pamoate16 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).
James Chou among 3,099 hospitalist physician records in California
James Chou, M.D. is one of 3,099 hospitalist physician records with a practice address in California. 90% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 34% of them.
- NPI issued2008 · 34% of these records are older, 61% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2004 · median 2010 among the 2,505 with a school on file
- Record last updated2021 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208M00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hospitalist Physician providers in California
There are 3,099 hospitalist physician records in California.
All 3,099 in California → Every provider in Harbor City → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Charles Bui, M.D.Harbor City, CA 907101013100338
- Ali Ezzat, MDHarbor City, CA 907101932781259
- Hector Miguel, M.D.Harbor City, CA 907101457618969
- Jason Portillo, M.D.Harbor City, CA 907101427329176
- Carla Toms, MDHarbor City, CA 907101730258336
- Shakir UllahHarbor City, CA 907101679149876
- Gunjot Kaur, MDCerritos, CA 907031881155711
- Moustafa Aboshady, M.D.Los Alamitos, CA 907201003127655
Common questions
What is James Chou, M.D.'s NPI number?
James Chou, M.D.'s National Provider Identifier (NPI) is 1396916003, issued on Mar 20, 2008. An NPI identifies a provider in billing; it is not a license.
Where is James Chou, M.D. located?
The NPPES record lists a practice address at 25825 Vermont Ave, Harbor City, CA, 90710. Phone: (310) 325-5111. Providers update this record themselves, so call before visiting.
How can I verify James Chou, M.D.'s license?
NPPES lists California license number A93266, 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 James Chou, M.D. prescribe under Medicare Part D?
In 2024, James Chou, M.D. had 241 Medicare Part D claims for 75 beneficiaries; the average among hospitalist physician prescribers was 521. 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.