Ann Allergy Asthma Immunol
Administration, InhalationAnti-Inflammatory AgentsAsthma
Dr. Mark H. Ellis, MD
NPI1568569424PAC ID0941493118
- Medicare services, 2024
- 74
- Medicare patients, 2024
- 46
- Part D claims, 2024
- 565
- Publications
- 3
- Clinical trials
- 1
- Practice address
- 1201 W La Veta Ave, Orange, CA 92868
- Practice phone
- Call (714) 997-3000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Children's Hospital of Orange County Main Campus
Orange, California
Find Dr. Ellis' professional email, personal email and mobile number
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Dr. Mark H. Ellis is a pediatric allergy/immunology physician in Orange, California
Dr. Ellis practices at Children's Hospital of Orange County Main Campus in Orange, California.
Dr. Ellis' NPI, 1568569424, was assigned on September 20, 2006. Dr. Ellis graduated from Tulane School of Medicine in 1981. Dr. Ellis holds California license C41445.
NPI and contact details
- NPI
- 1568569424NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0941493118
- NPI enumeration date
- September 20, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (714) 997-3000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark H. Ellis practices at Children's Hospital of Orange County Main Campus in Orange, California
Dr. Ellis' primary practice is Children's Hospital of Orange County Main Campus, at 1201 W La Veta Ave, Orange, CA 92868 in Orange County. The practice phone is (714) 997-3000.
- Children's Hospital of Orange County Main Campus1201 W La Veta Ave, Orange, CA 92868 · Orange CountyPhone(714) 997-3000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mark H. Ellis is affiliated with 2 sites of care and 1 medical group
Dr. Ellis' primary practice is Children's Hospital of Orange County Main Campus in Orange, California. The medical group on file is CHOC Children's. Dmand AI also links Dr. Ellis to 1 more group practice or clinic, named with a free account.
Children's Hospital of Orange County Main CampusPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mark H. Ellis' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Ellis practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Children's Hospital of Orange County Main Campus | Available with a free account |
| +1 more affiliated site | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mark H. Ellis is one of 49 pediatric allergy/immunology physicians in California
Pediatric allergy/immunology is Dr. Ellis' primary specialty in the NPI Registry, under taxonomy code 2080P0201X. Dr. Ellis is board certified in allergy & immunology by the American Board of Allergy and Immunology. Dmand AI has Dr. Ellis' licenses on file in 2 states: California and Louisiana.
Specialties and state licenses
- Pediatric allergy/immunology, CaliforniaPrimary
- Louisiana license
Clinical focus
Dmand AI lists asthma, chronic nasal allergies, hives and immune deficiency disease among the conditions Dr. Ellis treats.
Pediatric allergy/immunology physicians near Dr. Ellis
Counts of pediatric allergy/immunology physicians 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. Mark H. Ellis billed Medicare for 74 services in 2024
CMS data shows 74 Medicare services from Dr. Ellis across 3 procedure codes in 2024, for 46 Medicare patients. Medicare paid $6,561 for them. Every service was in an office.
Medicare services, 202474
Medicare patients46
Paid by Medicare$6,561
Procedure codes3
Dr. Ellis' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 572024: 529%
- Tests and treatments
- 2023: 282024: 2221%
Dr. Ellis compared with the California median for pediatric allergy/immunology physicians, 2024
- Dr. Ellis
- California median
- Medicare services
- 74vs 8412% below
- Medicare patients
- 46vs 4112% above
- Part D claims
- 460vs 3214.4 times
Medians across 26 pediatric allergy/immunology physicians in California with Dmand AI profiles that report each measure.
Dr. Ellis' 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.
Need commercial claims for Dr. Ellis?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Ellis and other pediatric allergy/immunology physicians in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark H. Ellis treated 46 Medicare patients in 2024, average age 70
CMS counts 46 Medicare patients who saw Dr. Ellis in 2024. The largest group is 75 to 84, with 19 patients. 70% of them have high cholesterol, and 65% have asthma. Their average risk score is 1.01, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Ellis' median patient age at 11, with 40% women.
Medicare patients, 202446
Average age70
Average risk score1.01
Dr. Ellis' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Ellis' Medicare patients by sex, 2024
- Women3167%
- Men1533%
Chronic conditions among Dr. Ellis' Medicare patients, 2024
- High cholesterol70%
- Asthma65%
- High blood pressure59%
- Arthritis46%
- Osteoporosis30%
- Mood disorders28%
- Anxiety24%
- Depression24%
Share of Medicare patients with each condition. A patient can have several.
Dr. Ellis' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 11
Patient panel by sex, all payers
- Women40%
- Men60%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mark H. Ellis wrote 565 Medicare Part D claims in 2024
In 2024, Dr. Ellis wrote 565 Medicare Part D claims for 63 patients. 73% of them were for generic drugs. CMS names the drug for 460 of them, across 17 drugs with 11 or more claims each, at $196,380 in total drug cost. In 2023, CMS named 462 claims across 17 drugs.
Part D claims, 2024565
Drugs named by CMS17
Total drug cost$196,380
Part D patients63
Dr. Ellis' Part D claims by kind of drug, 2024
- Generic412 claims73%
- Brand-name153 claims27%
Dr. Ellis' 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. Ellis' Part D claims, 2024
- Antibiotics4%24 of 565 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, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 4622024: 460No change
Drugs named by CMS: 17 in 2024, 17 in 2023.
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. Mark H. Ellis takes part in Medicare
Dr. Ellis accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Mark H. Ellis has 3 publications on record
Dmand AI links 3 papers to Dr. Ellis.
Papers3
Recent publications by Dr. Ellis
AnaphylaxisInfant FoodMilk Hypersensitivity
See who Dr. Ellis researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Ellis works with, so you can find a warm path to the right pediatric allergy/immunology physicians.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Mark H. Ellis has worked on 1 clinical trial
Dmand AI links Dr. Ellis to 1 clinical trial. Conditions studied include Eczema and Dermatitis, Atopic. Open Payments lists research payments to Dr. Ellis that name 1 trial.
Conditions in Dr. Ellis' trials
- Eczema
- Dermatitis, Atopic
Investigators on the most trials with Dr. Ellis
- Lisa Ann Beck, MD1 shared trial
- Mark Boguniewicz, MD1 shared trial
- Raj Jitendra Chovatiya, MD, PhD1 shared trial
Recent clinical trials with Dr. Ellis
$857 in research paymentsEczemaDermatitis, AtopicDupilumab
Sources: Open Payments (CMS), 2025 data, released July 7, 2026; Dmand AI Research Linkage; and ClinicalTrials.gov (National Library of Medicine)
Dr. Mark H. Ellis received $14,092 in industry payments from 2016 to 2025
CMS Open Payments shows 632 general payments to Dr. Ellis from 35 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 99% of the total. CSL Behring paid the most, $2,034. It also lists 28 research payments totaling $135,852 from 2016 to 2018, naming 1 clinical trial.
General payments to Dr. Ellis by program year, 2016 to 2025
General payments to Dr. Ellis by kind, 2016 to 2025
$14.1Kin total
- Food and beverage$13,89199%
- Education$2021%
Companies that paid Dr. Ellis 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. Mark H. Ellis graduated from Tulane School of Medicine
Dr. Ellis graduated from Tulane School of Medicine in 1981.
- Medical school
- Board certified in allergy & immunology
- Board certified in pediatrics
Source: Dmand AI Professional Profile Data
Dr. Mark H. Ellis accepts plans from 9 insurance carriers
Dr. Ellis is in network with 9 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
- Aetna
- United Healthcare
- Blue Cross Blue Shield of Michigan
- HCSC
- Molina
- Aspirus Health Plan
- Blue Cross and Blue Shield of Kansas City
- CMS Medicare
- +1 more carriersWith a free account
Plan types Dr. Ellis accepts, by number of carriers
- Medicare5
- PPO5
- HMO4
- POS4
- EPO2
Source: Dmand AI Insurance Network Data
Sources for Dr. Mark H. Ellis'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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) |
| 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) |
| 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. Mark H. Ellis
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. Mark H. Ellis' NPI number?
Dr. Mark H. Ellis' NPI number is 1568569424. It was assigned on September 20, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark H. Ellis?
Dr. Mark H. Ellis is a pediatric allergy/immunology physician in Orange, California. The primary specialty in the NPI Registry is Pediatric Allergy/Immunology Physician (taxonomy code 2080P0201X).
Where does Dr. Mark H. Ellis practice?
Dr. Ellis practices at 1201 W La Veta Ave, Orange, CA 92868. Dr. Ellis' primary practice is Children's Hospital of Orange County Main Campus in Orange, California. Dmand AI also links Dr. Ellis to 1 group practice or clinic.
What is Dr. Mark H. Ellis' office phone number?
The practice phone on file for Dr. Ellis is (714) 997-3000.
What is Dr. Mark H. Ellis' medical license number?
Dr. Ellis holds California license C41445, one of the licenses on file in 2 states.
Which states has Dr. Mark H. Ellis been licensed in?
Dmand AI has state licenses on file for Dr. Ellis in California (1984 to 2026) and Louisiana (1981 to 2007).
What medical group is Dr. Mark H. Ellis part of?
Dr. Ellis is linked to CHOC Children's.
Does Dr. Mark H. Ellis accept Medicare?
Yes. CMS data shows Dr. Ellis billed Medicare for 74 services in 2024, and Dr. Ellis accepts Medicare assignment.
How many Medicare patients does Dr. Mark H. Ellis see?
CMS counts 46 Medicare patients who saw Dr. Ellis in 2024, with an average age of 70.
Is Dr. Mark H. Ellis board certified?
Yes. Dr. Ellis is board certified in allergy & immunology by the American Board of Allergy and Immunology.
Show 7 more questionsShow fewer questions
What services does Dr. Mark H. Ellis bill to Medicare?
In 2024, Dr. Ellis' most billed Medicare services were office visit, established patient (99214), lung function service (94375) and office visit, established patient (99215).
Where did Dr. Mark H. Ellis go to medical school?
Dr. Ellis graduated from Tulane School of Medicine in 1981.
What drugs does Dr. Mark H. Ellis prescribe most?
In 2024 Medicare Part D data, Dr. Ellis' most prescribed drugs by claims were Montelukast Sodium, Azelastine HCl and Fluticasone Propionate.
Has Dr. Mark H. Ellis received payments from drug or device companies?
CMS Open Payments shows $14,092 in general payments to Dr. Ellis from 35 companies from 2016 to 2025. The largest total came from CSL Behring.
How long has Dr. Mark H. Ellis been practicing?
Dr. Ellis graduated from medical school in 1981, 45 years ago.
Does Dr. Mark H. Ellis do research?
Dmand AI links 3 publications to Dr. Ellis. Dr. Ellis has worked on 1 clinical trial.
What insurance does Dr. Mark H. Ellis accept?
Dr. Ellis is in network with 9 carriers, including Aetna, United Healthcare and Blue Cross Blue Shield of Michigan. Medicare plans come from the most carriers, 5. Check the plan with the practice before a visit.
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