Christopher Owden Brown, MD, MPH
Internal Medicine Physician · Torrance, CA
Christopher Owden Brown, MD, MPH is an internal medicine physician with a practice address in Torrance, California, and NPI 1609123504, issued on Aug 9, 2012. Check the license (California A126975, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Christopher Owden Brown
- Credential
- MD, MPH
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A126975 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1000 W. Carson Street Box 400, Torrance, CA 90509
- Phone
- (310) 222-2401
- Enumerated
- Aug 9, 2012
- Record last updated
- Dec 31, 2019 (not updated in 7 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1000 W. Carson Street Box 400
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Rajesh Shankar, M.D.Anesthesiology Physician1477802221
Verify Christopher Owden Brown in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A126975Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average internal medicine physician in 2024
668 Medicare Part D claims for 62 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 25 claims were for opioids.
Most prescribed
- Atorvastatin Calcium50 claims
- Amlodipine Besylate31 claims
- Losartan Potassium29 claims
- Ozempic23 claims
- Lisinopril21 claims
- Albuterol Sulfate Hfa19 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.
Christopher Owden Brown among 17,696 internal medicine physician records in California
Christopher Owden Brown, MD, MPH 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 2012, is newer than 68% of them.
- NPI issued2012 · 68% of these records are older, 29% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2019 · 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).
231 internal medicine physician records list a practice address in Torrance
They are 231 of the 8,901 NPPES records with a practice address in Torrance, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Torrance → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Antonio Bonet, MDTorrance, CA 905091134386956
- Albert Cespedes, M.D.Torrance, CA 905091942527650
- Lisa Chung, M.D.Torrance, CA 905091083931794
- Anuj Datta, MDTorrance, CA 905091215129416
- Ritu Kumar, M.D.Torrance, CA 905091063535367
- Patricia Loo, MDTorrance, CA 905091427215250
- Carmen Mendez, M.D.Torrance, CA 905091609073618
- Leslie OesterichTorrance, CA 905091245518422
Common questions
What is Christopher Owden Brown, MD, MPH's NPI number?
Christopher Owden Brown, MD, MPH's National Provider Identifier (NPI) is 1609123504, issued on Aug 9, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Christopher Owden Brown, MD, MPH located?
The NPPES record lists a practice address at 1000 W. Carson Street Box 400, Torrance, CA, 90509. Phone: (310) 222-2401. Providers update this record themselves, so call before visiting.
How can I verify Christopher Owden Brown, MD, MPH's license?
NPPES lists California license number A126975, 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 Christopher Owden Brown, MD, MPH prescribe under Medicare Part D?
In 2024, Christopher Owden Brown, MD, MPH had 668 Medicare Part D claims for 62 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.