Mark H. Ellis, M.D.
Pediatric Allergy/Immunology Physician · Orange, CA
Mark H. Ellis, M.D. is a pediatric allergy/immunology physician with a practice address in Orange, California, and NPI 1568569424, issued on Sep 20, 2006. Check the license (California C41445, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Mark H. Ellis
- Credential
- M.D.
- Primary taxonomy
- Pediatric Allergy/Immunology Physician 2080P0201X
- License number
- C41445 CA
Self-reported in NPPES; status is on the state search - Practice location
- 455 S Main St, Orange, CA 92868
- Phone
- (714) 289-4511
- Enumerated
- Sep 20, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (714) 289-4788
- Medicaid ID
- 00C414450 CA
- Medicare enrollment
- Enrolled (PECOS I20101020000475); accepts Medicare assignment
- Medical or professional school
- Tulane University School Of Medicine, 1981
- Entity
- Type 1 · individual
8 nearest pediatric allergy/immunology physician records → All 52 in California → Look up another NPI →
Also registered at 455 S Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Jose Abdenur, M.D.Clinical Biochemical Genetics Physician1154428027
- Eileen Abejar, PNPPediatric Nurse Practitioner1083865042
- Felice Adler-Shohet, M.D.Pediatric Infectious Diseases Physician1962513051
- Irfan Ahmad, MDNeonatal-Perinatal Medicine Physician1699790139
- Sana Al-Jundi, M.D.Pediatric Critical Care Medicine Physician1912090465
- Ragnar Amlie, M.D.Neonatal-Perinatal Medicine Physician1972696433
Verify Mark H. Ellis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C41445Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.2 times the Medicare Part D claims of the average pediatric allergy/immunology physician in 2024
565 Medicare Part D claims for 63 beneficiaries, against an average of 259 among the 198 providers of this specialty who prescribed in Part D. Brand-name drugs were 27% of claims.
Most prescribed
- Montelukast Sodium116 claims
- Azelastine Hcl56 claims
- Fluticasone Propionate52 claims
- Wixela Inhub32 claims
- Albuterol Sulfate Hfa23 claims
- Advair Hfa19 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: $1,590.43
61 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, Inc. The 289 providers of this specialty with any payment received $7,101.54 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
- Childrens Hospital OF Orange CountyOrange, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark H. Ellis among 52 pediatric allergy/immunology physician records in California
Mark H. Ellis, M.D. is one of 52 pediatric allergy/immunology 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 2006, is newer than 2% of them.
- NPI issued2006 · 2% of these records are older, 50% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 50% of these records are
- Graduated1981 · median 1996 among the 26 with a school on file
- Record last updated2007 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0201X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Allergy/Immunology Physician providers in California
There are 52 pediatric allergy/immunology physician records in California.
All 52 in California → Every provider in Orange → Pediatric Allergy/Immunology Physician nationwide →
The 8 pediatric allergy/immunology physician records with the nearest ZIP codes
- Chris Landon, M.D.Ventura, CA 930031427118868
- Anthony Hirsch, MDOjai, CA 930231316269038
- Duke Kim, MDMission Viejo, CA 926911780690636
- Barbara Ariue, M.D.San Bernardino, CA 924081013930874
- Vinh Nguyen, MDSan Bernardino, CA 924081295231868
- John Faraci, MDLoma Linda, CA 923541104845775
- Stuart Chudnofsky, MDRancho Mirage, CA 922701023719689
- Sara MattySan Diego, CA 921051265167506
Common questions
What is Mark H. Ellis, M.D.'s NPI number?
Mark H. Ellis, M.D.'s National Provider Identifier (NPI) is 1568569424, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark H. Ellis, M.D. located?
The NPPES record lists a practice address at 455 S Main St, Orange, CA, 92868. Phone: (714) 289-4511. Providers update this record themselves, so call before visiting.
How can I verify Mark H. Ellis, M.D.'s license?
NPPES lists California license number C41445, 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 H. Ellis, M.D. prescribe under Medicare Part D?
In 2024, Mark H. Ellis, M.D. had 565 Medicare Part D claims for 63 beneficiaries; the average among pediatric allergy/immunology physician prescribers was 259. 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.