Derek Joseph Orejel
Hospitalist Physician · Los Angeles, CA
Derek Joseph Orejel is a hospitalist physician with a practice address in Los Angeles, California, and NPI 1245520790, issued on Apr 18, 2011. Check the license (California A124440, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Derek Joseph Orejel
- Primary taxonomy
- Hospitalist Physician 208M00000X
- License number
- A124440 CA
Self-reported in NPPES; status is on the state search - Practice location
- 6041 Cadillac Ave, Los Angeles, CA 90034
- Phone
- (760) 447-5054
- Enumerated
- Apr 18, 2011
- Record last updated
- Dec 8, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20140623000984); accepts Medicare assignment
- Medical or professional school
- University Of California, Geffen School Of Medicine, 2011
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hospitalist physician records → All 3,099 in California → Look up another NPI →
Also registered at 6041 Cadillac Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Blasius AgumPsychiatric/Mental Health Nurse Practitioner1063293207
Verify Derek Joseph Orejel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A124440Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
55% fewer Medicare Part D claims than the average hospitalist physician in 2024
235 Medicare Part D claims for 97 beneficiaries, against an average of 521 among the 21,613 providers of this specialty who prescribed in Part D.
Most prescribed
- Cefpodoxime Proxetil18 claims
- Prednisone18 claims
- Amlodipine Besylate14 claims
- Furosemide14 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 GroupLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Derek Joseph Orejel among 3,099 hospitalist physician records in California
Derek Joseph Orejel 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 2011, is newer than 47% of them.
- NPI issued2011 · 47% of these records are older, 49% newer
- In a Medicare fileYes · 90% of these records are
- In the CMS Doctors and Clinicians fileYes · 81% of these records are
- Graduated2011 · 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 Los Angeles → Hospitalist Physician nationwide →
The 8 hospitalist physician records with the nearest ZIP codes
- Scott Fassas, MS, MDLos Angeles, CA 900341609455575
- Erin Sternhagen, MDLos Angeles, CA 900341497371140
- Vanessa Castillo, MDLos Angeles, CA 900331407483605
- Miguel De La Torre Avitia, MDLos Angeles, CA 900331558010363
- Jean Claude Guidi, DOLos Angeles, CA 900331750960837
- Gina Hana, MDLos Angeles, CA 900331942950456
- Mangala Iyengar, MD/PHDLos Angeles, CA 900331598261240
- Daniel Joh, MDLos Angeles, CA 900331356801088
Common questions
What is Derek Joseph Orejel's NPI number?
Derek Joseph Orejel's National Provider Identifier (NPI) is 1245520790, issued on Apr 18, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Derek Joseph Orejel located?
The NPPES record lists a practice address at 6041 Cadillac Ave, Los Angeles, CA, 90034. Phone: (760) 447-5054. Providers update this record themselves, so call before visiting.
How can I verify Derek Joseph Orejel's license?
NPPES lists California license number A124440, 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 Derek Joseph Orejel prescribe under Medicare Part D?
In 2024, Derek Joseph Orejel had 235 Medicare Part D claims for 97 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.