Physician Profile
Unclaimed ProfileAbout CASPER
Based in Peoria, AZ, Ryan Matthew Casper, MD is listed in the NPI registry under allergy/immunology. Ryan graduated from Medical College of Wisconsin in 2001. Ryan is also listed as specialising in pediatric allergy & immunology and allergy & immunology.
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
Areas of Expertise
Common questions
What kind of doctor is Dr. Casper?
Dr. Casper is an allergy/immunology in Peoria, AZ. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “ALLERGY/IMMUNOLOGY”.
NPI registry
What is Dr. Casper's address?
Dr. Casper is listed at 13965 N. 75TH AVENUE, Peoria, AZ 85381. 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. Casper?
The number on file is (602) 843-2991. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Casper's NPI number?
Dr. Casper's National Provider Identifier is 1306898846. 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. Casper train?
Dr. Casper attended Medical College of Wisconsin, graduating in 2001. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Casper been practising?
Dr. Casper has 25 years experience. Calculated from a graduation year of 2001, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Casper perform?
According to Medicare billing data, Dr. Casper 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
Has Dr. Casper confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Casper. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (602) 843-2991
- Email not available
Practice Locations
13965 N. 75TH AVENUE
Peoria, AZ 85381
Procedures Most Often Billed to Medicare
26,763 services · 1,409 patients · 13 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Test for allergy using allergenic extract | Treatment | 95004 |
8,768 |
| Professional service for preparation and provision of 1 or more antigens | Treatment | 95165 |
8,526 |
| Professional service for multiple injections of allergen | Treatment | 95117 |
2,033 |
| Test to measure rate of airflow | Treatment | 94375 |
288 |
| Professional service for single injection of allergen | Treatment | 95115 |
231 |
| Administration of non-hormonal anti-neoplastic chemotherapy under skin or into muscle | Treatment | 96401 |
217 |
| Injection of drug or substance under skin or into muscle | Treatment | 96372 |
47 |
| Test to measure expiratory airflow and volume changes before and after medication administration | Treatment | 94060 |
25 |
| Injection, omalizumab, 5 mg | Drug given | J2357 |
5,903 |
| Albuterol, inhalation solution, fda-approved final product, non-compounded, administered through dme, unit dose, 1 mg | Drug given | J7613 |
31 |
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 7
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 Peoria 1
Same specialty, same city.
More connections — 21 related providers in 3 groups
Trained at Medical College of Wisconsin 8
Other providers in the same specialty who trained at the same institution.
Class of 2001 at Medical College of Wisconsin 8
Providers who graduated from the same medical school in the same year.
Also performs Test for allergy using allergenic extract 5
Providers in AZ who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.