Mark M. Youssef, M.D.
Emergency Medicine Physician · Victorville, CA
Mark M. Youssef, M.D. is an emergency medicine physician with a practice address in Victorville, California, and NPI 1235188400, issued on May 8, 2006. Check the license (California A49793, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark M. Youssef
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- A49793 CA
Self-reported in NPPES; status is on the state search - Practice location
- 15248 11TH St, Victorville, CA 92395
- Phone
- (760) 245-8691
- Enumerated
- May 8, 2006
- Record last updated
- Jan 8, 2009 (not updated in 17 years: call before relying on the address or phone)
- Fax
- (760) 843-6020
- Medicaid ID
- 00A497930 CA
- Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 7,751 in California → Look up another NPI →
Also registered at 15248 11TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Michael Blum, M.D.Emergency Medicine Physician1649229816
- Lydia Cruz, M.D.Anesthesiology Physician1164547972
- Andrew Khan, D.O.Emergency Medicine Physician1750330932
- Rene Loya, M.D.Emergency Medicine Physician1912956319
- Rahul Nayyar, M.D., MBADiagnostic Radiology Physician1740507342
- Leroy Pascal, M.D.Emergency Medicine Physician1407804750
Verify Mark M. Youssef in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A49793Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average emergency medicine physician in 2024
27 Medicare Part D claims, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D.
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: $137.30
8 payments; by number, the most common kind was food and beverage; the largest payer was Galderma Laboratories, L.P. The 12,335 providers of this specialty with any payment received $953.79 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.
Mark M. Youssef among 7,751 emergency medicine physician records in California
Mark M. Youssef, M.D. is one of 7,751 emergency medicine physician records with a practice address in California. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 4% of them.
- NPI issued2006 · 4% of these records are older, 60% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileNo · 59% of these records are
- Record last updated2009 · 59% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in California
There are 7,751 emergency medicine physician records in California.
All 7,751 in California → Every provider in Victorville → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Michael Blum, M.D.Victorville, CA 923951649229816
- Alexander Cruise, MDVictorville, CA 923951114381530
- Travis Inglis, D.O.Victorville, CA 923951881934503
- Andrew Khan, D.O.Victorville, CA 923951750330932
- Rene Loya, M.D.Victorville, CA 923951912956319
- Leroy Pascal, M.D.Victorville, CA 923951407804750
- Paulo Reyes, M.D.Victorville, CA 923951245289388
- Rodrigo Rojas, MDVictorville, CA 923951417040775
Common questions
What is Mark M. Youssef, M.D.'s NPI number?
Mark M. Youssef, M.D.'s National Provider Identifier (NPI) is 1235188400, issued on May 8, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark M. Youssef, M.D. located?
The NPPES record lists a practice address at 15248 11TH St, Victorville, CA, 92395. Phone: (760) 245-8691. Providers update this record themselves, so call before visiting.
How can I verify Mark M. Youssef, M.D.'s license?
NPPES lists California license number A49793, 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 Mark M. Youssef, M.D. prescribe under Medicare Part D?
In 2024, Mark M. Youssef, M.D. had 27 Medicare Part D claims; the average among emergency medicine physician prescribers was 226. 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.