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Edit this profileAt a glance
- 3811 Valley Centre Dr, San Diego, CA 92130
About Dr. Simon
Based in San Diego, CA, Ronald A. Simon, M.D. is listed in the NPI registry under allergy & immunology. Ronald graduated from University of Chicago, Pritzker School of Medicine in 1974. According to Medicare claims data, Ronald cared for 273 Medicare patients across 3,776 services. The services billed most often include injection, omalizumab, 5 mg, test for allergy using allergenic extract, and injection of drug or substance under skin or into muscle. NPI 1255304622 identifies this record in the national registry.
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
- (858) 764-9010
- Email not available
Practice Locations
3811 VALLEY CENTRE DR
San Diego, CA 92130
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
3,776 services · 273 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Test for allergy using allergenic extract | Treatment | 95004 |
245 | Less often than most peers in Allergy & Immunology |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
165 | As often as other peers in Allergy & Immunology |
| Professional service for multiple injections of allergen | Treatment | 95117 |
63 | Less often than most peers in Allergy & Immunology |
| Test to measure expiratory airflow and volume | Treatment | 94010 |
15 | Less often than most peers in Allergy & Immunology |
| Injection, omalizumab, 5 mg | Drug given | J2357 |
3,135 | Less often than most peers in Allergy & Immunology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
55 | 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 |
34 | As often as other peers in Allergy & Immunology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
28 | As often as other peers in Allergy & Immunology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
20 | Less often than most peers in Allergy & Immunology |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
16 | Less 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.
Other allergists at this location 1
Same specialty, same street address — most likely the same department or group.
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 allergists in San Diego 7
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Chicago, Pritzker School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1974 at University of Chicago, Pritzker School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Test for allergy using allergenic extract 8
Providers in CA who bill this service to Medicare most often.
Common questions
What is Ronald A. Simon's specialty?
Ronald A. Simon is an allergist in San Diego, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Allergy & Immunology”.
NPI registry
Where can I find Ronald A. Simon?
Ronald A. Simon is listed at 3811 Valley Centre Dr, San Diego, CA 92130. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Ronald A. Simon?
The number on file is (858) 764-9010. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Ronald A. Simon's NPI number?
Ronald A. Simon's National Provider Identifier is 1255304622. 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
What is Ronald A. Simon's education?
Ronald A. Simon attended University of Chicago, Pritzker School of Medicine, graduating in 1974. This comes from the CMS National Downloadable File.
CMS public data
How long has Ronald A. Simon been practicing?
Ronald A. Simon has 52 years experience. Calculated from a graduation year of 1974, reported in the CMS National Downloadable File.
CMS public data
What is Ronald A. Simon known for?
According to Medicare billing data, Ronald A. Simon provides treatments such as test for allergy using allergenic extract and injection of drug or substance under skin or into muscle, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Ronald A. Simon confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Ronald A. Simon. If this is you, claiming it is free.
Guide.md
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