Quick answers
- Does Corinna S. Bowser accept Medicare assignment?
- Yes. Medicare's clinician data says Corinna S. Bowser accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Corinna S. Bowser see?
- In 2024, CMS data shows 165 Original Medicare patients and 7,082 services for Corinna S. Bowser. This counts Original Medicare only and measures volume, not quality.
- What is Corinna S. Bowser's NPI number?
- 1003850439. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Corinna S. Bowser, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 165 |
|---|---|
| Services billed to Medicare | 7,082 |
| Different services or procedures | 20 |
| Participating Medicare provider | Yes |
| Average age of these patients | 72 |
Most frequent services
- Test for allergy using allergenic extract (95004)2,377 services
- Professional service for preparation and provision of 1 or more antigens (95165)451 services
- Professional service for multiple injections of allergen (95117)289 services
- Test to measure expiratory airflow and volume (94010)116 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)96 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure64%
- Arthritis62%
- Asthma53%
- Anxiety32%
- Ischemic heart disease31%
Practice locations
Addresses where Corinna S. Bowser is enrolled with Medicare (CMS data updated October 2, 2026).
- 825 Old Lancaster Rd, Suite 320Bryn Mawr, PA 19010 (610) 527‑3800
Group practices
Medicare enrollment lists Corinna S. Bowser as a member of this group (CMS data updated October 2, 2026).
- Bryn Mawr Medical Specialists Association134 clinicians in the group
Specialties
- Allergy/Immunologyprimary
- Pediatric Medicinealso
Other allergist and immunologists in Pennsylvania
Clinicians with the same Medicare primary specialty in Pennsylvania — not a recommendation.
Other clinicians in Bryn Mawr Medical Specialists Association
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1998 (28 years since medical school) |
| Gender (as listed) | Female |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1003850439 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians