Christina Sevilla Ortega-Chen
Internal Medicine Physician · Los Angeles, CA
Christina Sevilla Ortega-Chen is an internal medicine physician with a practice address in Los Angeles, California, and NPI 1619266590, issued on Mar 31, 2011. Check the license (California A124155, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Christina Sevilla Ortega-Chen
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A124155 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4733 W Sunset Blvd FL 3, Los Angeles, CA 90027
- Phone
- (818) 826-9630
- Enumerated
- Mar 31, 2011
- Record last updated
- Jan 6, 2022
- Medicare enrollment
- Enrolled (PECOS I20160307001163); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 4733 W Sunset Blvd FL 3
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Andrew AbayanStudent in an Organized Health Care Education/Training Program1912589391
- Riad Abdulmoniem, MDStudent in an Organized Health Care Education/Training Program1215730841
- Dishan AbeydeeraStudent in an Organized Health Care Education/Training Program1265291413
- Alyssa AbramStudent in an Organized Health Care Education/Training Program1508626300
- Max Abramson, MDStudent in an Organized Health Care Education/Training Program1093579286
- Shalini Agrawal, DOStudent in an Organized Health Care Education/Training Program1316707888
Verify Christina Sevilla Ortega-Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A124155Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average internal medicine physician in 2024
107 Medicare Part D claims for 32 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 20 claims were for opioids.
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 GroupPanorama City, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christina Sevilla Ortega-Chen among 17,696 internal medicine physician records in California
Christina Sevilla Ortega-Chen 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 2011, is newer than 66% of them.
- NPI issued2011 · 66% of these records are older, 32% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2011 · median 2004 among the 11,065 with a school on file
- Record last updated2022 · 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).
1,423 internal medicine physician records list a practice address in Los Angeles
They are 1,423 of the 69,537 NPPES records with a practice address in Los Angeles, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Los Angeles → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sangeeta Aggarwal, MDLos Angeles, CA 900271578655908
- Hagop Bezikian, MDLos Angeles, CA 900271821171604
- Roshanak Eftekhari, M.D.Los Angeles, CA 900271619936556
- Martin Hirsch, MDLos Angeles, CA 900271881765774
- Missak Kltchian, MDLos Angeles, CA 900271255359840
- Ani Markarian, M.D.Los Angeles, CA 900271457305435
- Lyn Pestana, MDLos Angeles, CA 900271013088996
- Edward Quiming, MDLos Angeles, CA 900271497826465
Common questions
What is Christina Sevilla Ortega-Chen's NPI number?
Christina Sevilla Ortega-Chen's National Provider Identifier (NPI) is 1619266590, issued on Mar 31, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Christina Sevilla Ortega-Chen located?
The NPPES record lists a practice address at 4733 W Sunset Blvd FL 3, Los Angeles, CA, 90027. Phone: (818) 826-9630. Providers update this record themselves, so call before visiting.
How can I verify Christina Sevilla Ortega-Chen's license?
NPPES lists California license number A124155, 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 Christina Sevilla Ortega-Chen prescribe under Medicare Part D?
In 2024, Christina Sevilla Ortega-Chen had 107 Medicare Part D claims for 32 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.