Samer Alkassis
Hematology & Oncology Physician · Irvine, CA
Samer Alkassis is a hematology & oncology physician with a practice address in Irvine, California, and NPI 1124681515, issued on Apr 21, 2019. Check the license (California A178143, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Samer Alkassis
- Primary taxonomy
- Hematology & Oncology Physician 207RH0003X
- License number
- A178143 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4746 Barranca Pkwy, Irvine, CA 92604
- Phone
- (949) 653-2959
- Enumerated
- Apr 21, 2019
- Record last updated
- Aug 4, 2025
- Medicare enrollment
- Enrolled (PECOS I20250722003695); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest hematology & oncology physician records → All 1,583 in California → Look up another NPI →
Also registered at 4746 Barranca Pkwy
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Carol Josephs-Cowan, NPNurse Practitioner1568594653
Verify Samer Alkassis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A178143Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
84% fewer Medicare Part D claims than the average hematology & oncology physician in 2024
144 Medicare Part D claims for 27 beneficiaries, against an average of 877 among the 10,784 providers of this specialty who prescribed in Part D. Brand-name drugs were 26% of claims.
Most prescribed
- Metformin Hcl19 claims
- Easy Comfort Pen Needle12 claims
- Pro Comfort Alcohol Pads12 claims
- Repaglinide12 claims
- Trulicity11 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: $739.41
7 payments; by number, the most common kind was food and beverage; the largest payer was Janssen Biotech, Inc. The 8,560 providers of this specialty with any payment received $7,481.41 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 one group practice
- The Regents OF The University OF CaliforniaLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Samer Alkassis among 1,583 hematology & oncology physician records in California
Samer Alkassis is one of 1,583 hematology & oncology 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 2019, is newer than 95% of them.
- NPI issued2019 · 95% of these records are older, 3% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 71% of these records are
- Graduated2015 · median 2003 among the 1,124 with a school on file
- Record last updated2025 · 58% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RH0003X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Hematology & Oncology Physician providers in California
There are 1,583 hematology & oncology physician records in California.
All 1,583 in California → Every provider in Irvine → Hematology & Oncology Physician nationwide →
The 8 hematology & oncology physician records with the nearest ZIP codes
- Zorawar Noor, M.D., M.H.S.Irvine, CA 926041376802843
- David Xu, MDIrvine, CA 926041568826519
- Hyun Don Yun, MDIrvine, CA 926041508090473
- Bruce Hayton, M.D.Wildomar, CA 925951710030192
- Waheed Murad, M.D, MRCPTemecula, CA 925911205098498
- Rafi Ahmed, MDIrvine, CA 926181205093028
- Tiffanie Do, M.D.Irvine, CA 926181194251710
- Nader Kashani, MDIrvine, CA 926181285793893
Common questions
What is Samer Alkassis's NPI number?
Samer Alkassis's National Provider Identifier (NPI) is 1124681515, issued on Apr 21, 2019. An NPI identifies a provider in billing; it is not a license.
Where is Samer Alkassis located?
The NPPES record lists a practice address at 4746 Barranca Pkwy, Irvine, CA, 92604. Phone: (949) 653-2959. Providers update this record themselves, so call before visiting.
How can I verify Samer Alkassis's license?
NPPES lists California license number A178143, 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 Samer Alkassis prescribe under Medicare Part D?
In 2024, Samer Alkassis had 144 Medicare Part D claims for 27 beneficiaries; the average among hematology & oncology physician prescribers was 877. 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.