Mark Chou, D.O.
Cardiovascular Disease Physician · Loma Linda, CA
Mark Chou, D.O. is a cardiovascular disease physician with a practice address in Loma Linda, California, and NPI 1578854543, issued on Apr 26, 2011. Check the license on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark Chou
- Credential
- D.O.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- DR.0064783 CO
Self-reported in NPPES; status is on the state search - Practice location
- 11234 Anderson Street, Gme Office Csp 21005, Loma Linda, CA 92354
- Phone
- (909) 558-7263
- Enumerated
- Apr 26, 2011
- Record last updated
- Aug 4, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20200812002207); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Also registered at 11234 Anderson Street, Gme Office Csp 21005
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Erik Castleberg, M.D.Emergency Medicine Physician1700177508
- Chelsea Cosand, M.D.Emergency Medicine Physician1619237559
Verify Mark Chou in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of CaliforniaCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
37% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
1,938 Medicare Part D claims for 336 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 18% of claims.
Most prescribed
- Furosemide277 claims
- Atorvastatin Calcium235 claims
- Clopidogrel153 claims
- Eliquis129 claims
- Metoprolol Succinate119 claims
- Metoprolol Tartrate106 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: $797.74
26 payments; by number, the most common kind was food and beverage; the largest payer was Boston Scientific Corporation. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Intermountain Medical Group Denver LLCDenver, CO
- Platte Valley Medical Group LLCBrighton, CO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Chou among 2,574 cardiovascular disease physician records in California
Mark Chou, D.O. is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2011, is newer than 77% of them.
- NPI issued2011 · 77% of these records are older, 21% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2011 · median 1999 among the 1,742 with a school on file
- Record last updated2020 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in California
There are 2,574 cardiovascular disease physician records in California.
All 2,574 in California → Every provider in Loma Linda → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Anas Alani, MDLoma Linda, CA 923541154633709
- Mohammd Reza Amini, M.D.Loma Linda, CA 923541982899704
- Gary Fraser, M.D.Loma Linda, CA 923541265454672
- Alan Jacobson, M.D.Loma Linda, CA 923541417047937
- G Jang, M.D.Loma Linda, CA 923541649374299
- Alec Kherlopian, MD, MPHLoma Linda, CA 923541639551302
- Hyungjin Kim, D.O.Loma Linda, CA 923541619397296
- Nirav Mamdani, MDLoma Linda, CA 923541427240639
Common questions
What is Mark Chou, D.O.'s NPI number?
Mark Chou, D.O.'s National Provider Identifier (NPI) is 1578854543, issued on Apr 26, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Mark Chou, D.O. located?
The NPPES record lists a practice address at 11234 Anderson Street, Gme Office Csp 21005, Loma Linda, CA, 92354. Phone: (909) 558-7263. Providers update this record themselves, so call before visiting.
How can I verify Mark Chou, D.O.'s license?
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 Mark Chou, D.O. prescribe under Medicare Part D?
In 2024, Mark Chou, D.O. had 1,938 Medicare Part D claims for 336 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.