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Edit this profileAt a glance
- 455 S Main St, Orange, CA 92868
About Dr. Ellis
Mark H. Ellis, M.D. practices allergy/immunology in Orange, CA. Mark is a 1981 graduate of Tulane University School of Medicine. Mark is also listed as specializing in pediatric allergy & immunology. According to Medicare claims data, Mark cared for 67 Medicare patients across 74 services. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, test to measure rate of airflow, and established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more. The provider's National Provider Identifier (NPI) is 1568569424.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (714) 289-4511
- Email not available
Practice Locations
455 S MAIN ST
Orange, CA 92868
Conditions Commonly Evaluated or Treated
Within Allergy and Immunology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
Allergies
Digestive
Drug allergies
Drug allergy
Emergency
Environmental
Eye
Food allergies
- Egg Allergy
- Milk Allergy
- Peanut Allergy
- Shellfish Allergy
- Soy Allergy
- Tree Nut Allergy
- Wheat Allergy
Immune conditions
Immunology
- Common Variable Immunodeficiency
- Frequent Infections
- Hereditary Angioedema
- Mast Cell Activation Syndrome
- Weak Immune System
Lung conditions
Respiratory
Sinus
Sinus conditions
Skin
Skin conditions
Procedures & services
Most searched procedures
Allergy treatments
- Allergy Drops
- Asthma Biologics
- Food Desensitization
- Peanut Allergy Pill Treatment
- Sublingual Dust Mite Treatment
- Under-The-Tongue Allergy Tablets
Diagnostic
- Asthma challenge test
- Drug Challenge Test
- Exercise Challenge Breathing Test
- Exhaled nitric oxide test
- Ice Cube Test for Cold Allergy
- Immune System Blood Test
- Nasal endoscopy
- Oral Food Challenge
- Peak Flow Test
- Penicillin Allergy Testing
- Spirometry
- Tryptase Blood Test
- Vaccine Challenge Test
- Vaccine Response Antibody Test
Infusion
Medication therapy
Medications
Preventive
Respiratory
Tests
- Allergy Blood Testing
- Allergy Skin Prick Test
- Blood Component Allergy Test
- Complement Blood Test
- Eosinophil Blood Count
- Intradermal Allergy Test
- Pulmonary function test
- Skin Test For Metal Allergy
- Total IgE Blood Test
Treatment
Procedures Most Often Billed to Medicare
74 services · 67 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Test to measure rate of airflow | Treatment | 94375 |
22 | Too few peers to compare |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
40 | As often as other peers in Allergy/Immunology |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
12 | Too few peers to compare |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other allergy/immunology specialists in Orange 7
Same specialty, same city.
Trained at Tulane University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1981 at Tulane University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Test to measure rate of airflow 8
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Mark H. Ellis?
Mark H. Ellis is an allergy/immunology in Orange, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Mark H. Ellis's address?
Mark H. Ellis is listed at 455 S Main St, Orange, CA 92868. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Mark H. Ellis?
The number on file is (714) 289-4511. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Mark H. Ellis's NPI number?
Mark H. Ellis's National Provider Identifier is 1568569424. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Mark H. Ellis train?
Mark H. Ellis attended Tulane University School of Medicine, graduating in 1981. This comes from the CMS National Downloadable File.
CMS public data
How long has Mark H. Ellis been practicing?
Mark H. Ellis has 45 years experience. Calculated from a graduation year of 1981, reported in the CMS National Downloadable File.
CMS public data
What procedures does Mark H. Ellis perform?
According to Medicare billing data, Mark H. Ellis provides treatments such as test to measure rate of airflow, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Mark H. Ellis confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Mark H. Ellis. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.