Physician Profile
Ronald A. Simon, M.D.
Unclaimed ProfileAbout 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. Ronald is also listed as specializing in allergy & immunology. According to Medicare claims data, Ronald cared for 273 Medicare patients across 3,776 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (858) 764-9010
- Email not available
Practice Locations
3811 VALLEY CENTRE DR
San Diego, CA 92130
Procedures Most Often Billed to Medicare
3,776 services · 273 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Test for allergy using allergenic extract | Treatment | 95004 |
245 |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
165 |
| Professional service for multiple injections of allergen | Treatment | 95117 |
63 |
| Test to measure expiratory airflow and volume | Treatment | 94010 |
15 |
| Injection, omalizumab, 5 mg | Drug given | J2357 |
3,135 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
55 |
| 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 |
| 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 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
20 |
| 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 |
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 allergy/immunology specialists 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 allergy/immunology specialists in San Diego 7
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at University of Chicago, Pritzker School of Medicine 7
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 Dr. Simon's specialty?
Dr. Simon is an allergy/immunology in San Diego, CA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ALLERGY/IMMUNOLOGY”.
NPI registry
Where can I find Dr. Simon?
Dr. 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 Dr. Simon?
The number on file is (858) 764-9010. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Simon's NPI number?
Dr. 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 Dr. Simon's medical education?
Dr. 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 Dr. Simon been practicing?
Dr. Simon has 52 years experience. Calculated from a graduation year of 1974, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Simon known for?
According to Medicare billing data, Dr. 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 Dr. Simon confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Simon. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.