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Edit this profileAt a glance
- 8506 E Chapman Ave, Orange, CA 92869
About Dr. Gorenberg
Alan E. Gorenberg, MD practices allergy & immunology in Orange, CA. Alan is a 1986 graduate of Loma Linda University School of Medicine. Alan is also listed as specializing in internal medicine. Medicare claims data shows Alan provided 18,885 services to 1,438 patients. The services billed most often include test for allergy using allergenic extract, professional service for preparation and provision of 1 or more antigens, and professional service for multiple injections of allergen. The provider's National Provider Identifier (NPI) is 1730115221.
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) 633-4666
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
8506 E CHAPMAN AVE
Orange, CA 92869
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
Breathing & Airway
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
18,885 services · 1,438 patients · 17 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Diagnostic exam of nasal passages using an endoscope | Procedure | 31231 |
48 | As often as other peers in Allergy & Immunology |
| Test for allergy using allergenic extract | Treatment | 95004 |
6,880 | More than most peers in Allergy & Immunology |
| Professional service for preparation and provision of 1 or more antigens | Treatment | 95165 |
5,440 | More than most peers in Allergy & Immunology |
| Professional service for multiple injections of allergen | Treatment | 95117 |
2,883 | More than most peers in Allergy & Immunology |
| Test for allergy using allergenic extract injected into skin | Treatment | 95024 |
1,574 | More than most peers in Allergy & Immunology |
| Professional service for single injection of allergen | Treatment | 95115 |
632 | More often than most peers in Allergy & Immunology |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
438 | More than most peers in Allergy & Immunology |
| Test to measure the level of nitric oxide gas | Treatment | 95012 |
144 | More often than most peers in Allergy & Immunology |
| Test to measure expiratory airflow and volume changes before and after medication administration | Treatment | 94060 |
130 | More than most peers in Allergy & Immunology |
| Injection for rapid desensitization to allergen | Treatment | 95180 |
98 | More often than most peers in Allergy & Immunology |
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 1
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other allergists in Orange 8
Same specialty, same city.
Trained at Loma Linda University School of Medicine 5
Other providers in the same specialty who trained at the same institution.
More connections — 12 related providers in 2 groups
Class of 1986 at Loma Linda University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Diagnostic exam of nasal passages using an endoscope 4
Providers in CA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Gorenberg?
Dr. Gorenberg is an allergist in Orange, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Allergy & Immunology”.
NPI registry
What is Dr. Gorenberg's address?
Dr. Gorenberg is listed at 8506 E Chapman Ave, Orange, CA 92869. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Gorenberg?
The number on file is (714) 633-4666. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Gorenberg?
Dr. Gorenberg's National Provider Identifier is 1730115221. 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 Dr. Gorenberg train?
Dr. Gorenberg attended Loma Linda University School of Medicine, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Gorenberg have?
Dr. Gorenberg has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Gorenberg perform?
According to Medicare billing data, Dr. Gorenberg performs procedures including diagnostic exam of nasal passages using an endoscope; provides treatments such as test for allergy using allergenic extract and professional service for preparation and provision of 1 or more antigens, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Gorenberg's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Gorenberg. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.