David Chu, DO
Internal Medicine Physician · Van Nuys, CA
David Chu, DO is an internal medicine physician with a practice address in Van Nuys, California, and NPI 1326779273, issued on Jun 21, 2022. Check the license (California 20A21777, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David Chu
- Credential
- DO
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 20A21777 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15107 Vanowen St, Van Nuys, CA 91405
- Phone
- (818) 782-6000
- Enumerated
- Jun 21, 2022
- Record last updated
- May 21, 2025
- Medicare enrollment
- Enrolled (PECOS I20250602001684); accepts Medicare assignment
- Medical or professional school
- Michigan State University College Of Osteopathic Medicine, 2022
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 15107 Vanowen St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Cristen ArmelSpeech-Language Pathologist1245584994
- Stanley Azen, M.D.Emergency Medicine Physician1457392847
Verify David Chu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license 20A21777Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% fewer Medicare Part D claims than the average internal medicine physician in 2024
229 Medicare Part D claims for 37 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Atorvastatin Calcium16 claims
- Amlodipine Besylate14 claims
- Losartan Potassium14 claims
- Levothyroxine Sodium12 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
- San Fernando Valley Medical Group IncSherman Oaks, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Chu among 17,696 internal medicine physician records in California
David Chu, DO is one of 17,696 internal medicine physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 95% of them.
- NPI issued2022 · 95% of these records are older, 2% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2022 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
40 internal medicine physician records list a practice address in Van Nuys
They are 40 of the 4,323 NPPES records with a practice address in Van Nuys, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Van Nuys → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Eliza Ahn, M.D.Van Nuys, CA 914051356450498
- Kook Chang, M.D.Van Nuys, CA 914051356442354
- Mindy Cheng, M.D.Van Nuys, CA 914051689686669
- Jeffrey Chong, M.D.Van Nuys, CA 914051376644542
- Karl Kaplan, M.D.Van Nuys, CA 914051881698702
- David Lee, M.D.Van Nuys, CA 914051619065257
- Matthew Mischel, M.D.Van Nuys, CA 914051013996172
- Mitchell Nishimoto, M.D.Van Nuys, CA 914051003917287
Common questions
What is David Chu, DO's NPI number?
David Chu, DO's National Provider Identifier (NPI) is 1326779273, issued on Jun 21, 2022. An NPI identifies a provider in billing; it is not a license.
Where is David Chu, DO located?
The NPPES record lists a practice address at 15107 Vanowen St, Van Nuys, CA, 91405. Phone: (818) 782-6000. Providers update this record themselves, so call before visiting.
How can I verify David Chu, DO's license?
NPPES lists California license number 20A21777, 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 David Chu, DO prescribe under Medicare Part D?
In 2024, David Chu, DO had 229 Medicare Part D claims for 37 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.