Dr. Hisham El-Bayar, FACS, MD
- Medicare services, 2024
- 63
- Medicare patients, 2024
- 52
- Part D claims, 2024
- 45
- Publications
- 2
- Clinical trials
- 2
- Practice address
- 1100 West Stewart Dr, Orange, CA 92868
- Practice phone
- Call (714) 633-9111
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. El-Bayar's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Hisham El-Bayar is a general surgeon in Orange, California
Dr. El-Bayar practices at Providence St. Joseph Hospital Orange in Orange, California, part of Providence Health & Services.
Dr. El-Bayar's NPI, 1659376622, was assigned on June 16, 2005. Dr. El-Bayar graduated from Georgetown University School Of Medicine in 1986. Dr. El-Bayar holds California license A45299.
- NPI
- 1659376622NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0345304333
- NPI enumeration date
- June 16, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 633-9111
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 66
- Medical school graduation
- 1986
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Hisham El-Bayar practices at Providence St. Joseph Hospital Orange in Orange, California
Dr. El-Bayar's primary practice is Providence St. Joseph Hospital Orange, at 1100 West Stewart Dr, Orange, CA 92868 in Orange County. The practice phone is (714) 633-9111.
- Providence St. Joseph Hospital Orange1100 West Stewart Dr, Orange, CA 92868 · Orange CountyPhone(714) 633-9111
Source: Dmand AI Affiliation Data
Dr. Hisham El-Bayar is affiliated with 3 sites of care and 2 medical groups
Dr. El-Bayar's primary practice is Providence St. Joseph Hospital Orange in Orange, California, part of Providence Health & Services. The medical group on file is Orange Surgical Associates. Dmand AI also links Dr. El-Bayar to 2 more group practices and clinics and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Hisham El-Bayar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. El-Bayar practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Providence St. Joseph Hospital Orange | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
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Dr. Hisham El-Bayar is one of 2,926 general surgeons in California
Surgery is Dr. El-Bayar's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. El-Bayar is board certified in surgery by the American Board of Surgery. Dr. El-Bayar is licensed in California.
Specialties and state licenses
- Surgery, CaliforniaPrimary
Clinical focus
Dmand AI lists abdominal hernia repair surgery, acute gallbladder or bile duct inflammation, appendectomy, colon removal, esophagus, stomach, or upper small intestine surgery, gallbladder removal and groin hernia surgery among the conditions Dr. El-Bayar treats.
General surgeons near Dr. El-Bayar
Counts of general surgeons with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Hisham El-Bayar billed Medicare for 63 services in 2024
CMS data shows 63 Medicare services from Dr. El-Bayar across 2 procedure codes in 2024, all of them office visits, for 52 Medicare patients. Medicare paid $6,088 for them. Every service was in an office.
Dr. El-Bayar's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 862024: 6327%
Dr. El-Bayar compared with the California median for general surgeons, 2024
- Dr. El-Bayar
- California median
- Medicare services
- 63vs 16662% below
- Medicare patients
- 52vs 12157% below
- Part D claims
- 12vs 3465% below
Medians across 2,606 general surgeons in California with Dmand AI profiles that report each measure.
Dr. El-Bayar's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. El-Bayar and other general surgeons in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Hisham El-Bayar treated 52 Medicare patients in 2024, average age 76
CMS counts 52 Medicare patients who saw Dr. El-Bayar in 2024. The largest group is 65 to 74, with 23 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 23% are also on Medicaid. Their average risk score is 1.51, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. El-Bayar's median patient age at 68, with 54% women.
Dr. El-Bayar's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. El-Bayar's Medicare patients by sex, 2024
- Women2140%
- Men3160%
Chronic conditions among Dr. El-Bayar's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis46%
- Diabetes37%
- COPD33%
- Ischemic heart disease33%
- Cancer31%
- Chronic kidney disease25%
Share of Medicare patients with each condition. A patient can have several.
Dr. El-Bayar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women54%
- Men45%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Hisham El-Bayar wrote 45 Medicare Part D claims in 2024
In 2024, Dr. El-Bayar wrote 45 Medicare Part D claims for 25 patients. 80% of them were for generic drugs. CMS names the drug for 12 of them, across 1 drug with 11 or more claims each, at $31 in total drug cost. In 2022, CMS named 13 claims across 1 drug.
Dr. El-Bayar's Part D claims by kind of drug, 2024
- Generic36 claims80%
- Brand-name and other9 claims20%
Dr. El-Bayar's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. El-Bayar's Part D claims, 2024
- Opioids33%15 of 45 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 132024: 128%
Drugs named by CMS: 1 in 2024, 1 in 2022.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
How Dr. Hisham El-Bayar takes part in Medicare
Dr. El-Bayar accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Melanoma (skin cancer) excision: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); and Doctors and Clinicians Utilization Data (CMS)
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Dr. Hisham El-Bayar has 2 publications on record
Dmand AI links 2 papers to Dr. El-Bayar. Dr. El-Bayar's most frequent co-authors are Lily Lai, MD, Byrne Lee, MD and Lawrence David Wagman, MD.
Dr. El-Bayar's most frequent co-authors
Recent publications by Dr. El-Bayar
Gastroenterology
See who Dr. El-Bayar researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. El-Bayar works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Hisham El-Bayar has worked on 2 clinical trials
Dmand AI links Dr. El-Bayar to 2 clinical trials. Conditions studied include Carcinoma, Hepatocellular and Liver Neoplasms. St. Joseph Hospital of Orange sponsors the most, 2.
Conditions in Dr. El-Bayar's trials
- Carcinoma, Hepatocellular
- Liver Neoplasms
Investigators on the most trials with Dr. El-Bayar
- Robert Blair Ash, MD1 shared trial
- Afshin Forouzannia, MD1 shared trial
- Ripal Tarun Gandhi, MD1 shared trial
Recent clinical trials with Dr. El-Bayar
A Treatment of Unresectable Hepatocellular Carcinoma With TheraSphere® (opens in a new tab)
Sources: Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Hisham El-Bayar received $17,407 in industry payments from 2016 to 2025
CMS Open Payments shows 74 general payments to Dr. El-Bayar from 26 drug and device companies from 2016 to 2025. Education make up the largest share, 75% of the total. Intuitive Surgical, Inc. paid the most, $14,088.
General payments to Dr. El-Bayar by program year, 2016 to 2025
General payments to Dr. El-Bayar by kind, 2016 to 2025
- Education$13,00075%
- Food and beverage$3,07818%
- Travel and lodging$1,3298%
Companies that paid Dr. El-Bayar the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Hisham El-Bayar has 4 awards and honors on record
Dmand AI lists 4 awards for Dr. El-Bayar, most recently Member in 2013.
Awards and honors for Dr. El-Bayar
- 2013
- Member
- Undated
- ACS Fellow
- Checkbook Top Doc
- Compassionate Doctors
Source: Dmand AI Professional Profile Data
Dr. Hisham El-Bayar graduated from Georgetown University School Of Medicine
Dr. El-Bayar graduated from Georgetown University School Of Medicine in 1986. Dr. El-Bayar is a member of ACS, AMA, ASBS, CMA and SSO.
- Medical school
- Board certified in surgery
Source: Dmand AI Professional Profile Data
Dr. Hisham El-Bayar accepts plans from 15 insurance carriers
Dr. El-Bayar is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- United Healthcare
- Elevance
- HCSC
- Humana
- Blue Cross Blue Shield of Massachusetts
- Molina
- +7 more carriersWith a free account
Plan types Dr. El-Bayar accepts, by number of carriers
- PPO10
- Medicare9
- HMO8
- EPO4
- POS3
Source: Dmand AI Insurance Network Data
Sources for Dr. Hisham El-Bayar's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| Clinical trials and co-investigators | Dmand AI Research LinkageClinicalTrials.gov (National Library of Medicine) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Hisham El-Bayar
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Hisham El-Bayar's NPI number?
Dr. Hisham El-Bayar's NPI number is 1659376622. It was assigned on June 16, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Hisham El-Bayar?
Dr. Hisham El-Bayar is a general surgeon in Orange, California. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Hisham El-Bayar practice?
Dr. El-Bayar practices at 1100 West Stewart Dr, Orange, CA 92868. Dr. El-Bayar's primary practice is Providence St. Joseph Hospital Orange in Orange, California, part of Providence Health & Services. Dmand AI also links Dr. El-Bayar to 2 group practices and clinics and 1 medical group.
What is Dr. Hisham El-Bayar's office phone number?
The practice phone on file for Dr. El-Bayar is (714) 633-9111.
What is Dr. Hisham El-Bayar's medical license number?
Dr. El-Bayar holds California license A45299.
Which hospitals is Dr. Hisham El-Bayar affiliated with?
Dr. El-Bayar practices at Providence St. Joseph Hospital Orange in Orange, California.
What medical group is Dr. Hisham El-Bayar part of?
Dr. El-Bayar is linked to Orange Surgical Associates. Dmand AI links Dr. El-Bayar to 1 more medical group.
Does Dr. Hisham El-Bayar accept Medicare?
Yes. CMS data shows Dr. El-Bayar billed Medicare for 63 services in 2024, and Dr. El-Bayar accepts Medicare assignment.
How many Medicare patients does Dr. Hisham El-Bayar see?
CMS counts 52 Medicare patients who saw Dr. El-Bayar in 2024, with an average age of 76.
Is Dr. Hisham El-Bayar board certified?
Yes. Dr. El-Bayar is board certified in surgery by the American Board of Surgery.
Show 8 more questionsShow fewer questions
What services does Dr. Hisham El-Bayar bill to Medicare?
In 2024, Dr. El-Bayar's most billed Medicare services were office visit, established patient (99213) and office visit, new patient (99204).
Where did Dr. Hisham El-Bayar go to medical school?
Dr. El-Bayar graduated from Georgetown University School Of Medicine in 1986.
What drugs does Dr. Hisham El-Bayar prescribe most?
In 2024 Medicare Part D data, Dr. El-Bayar's most prescribed drugs by claims were Oxycodone HCl.
Has Dr. Hisham El-Bayar received payments from drug or device companies?
CMS Open Payments shows $17,407 in general payments to Dr. El-Bayar from 26 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Hisham El-Bayar been practicing?
Dr. El-Bayar graduated from medical school in 1986, 40 years ago.
Does Dr. Hisham El-Bayar do research?
Dmand AI links 2 publications to Dr. El-Bayar. Dr. El-Bayar has worked on 2 clinical trials.
Who does Dr. Hisham El-Bayar publish with?
Dr. El-Bayar's most frequent co-authors are Lily Lai, MD (1 shared paper), Byrne Lee, MD (1 shared paper) and Lawrence David Wagman, MD (1 shared paper).
What insurance does Dr. Hisham El-Bayar accept?
Dr. El-Bayar is in network with 15 carriers, including Aetna, Blue Cross Blue Shield of Michigan and United Healthcare. PPO plans come from the most carriers, 10. Check the plan with the practice before a visit.
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