Katherine Gehlmann Conner, M.D.
NPI 1720216120ActiveIndividual· Allergy & Immunology· Park Ridge, IL
Allergy & Immunology (M.D.) in Park Ridge, Illinois, trained at Rush Medical College of Rush University (class of 2009). In 2024 Medicare paid $167,566 for 177 patients, and Part D covered 391 of their prescriptions, 67% of them generic. Astrazeneca Pharmaceuticals LP was the largest of 11 companies reporting payments in 2025, $1,425 in all, mostly food and beverage.
Overview
| NPI | 1720216120 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 24, 2009 |
| Last updated in NPPES | Jul 23, 2025 |
| Certified by provider | Jul 23, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Allergy & Immunology Primary | 207K00000X | 036.129920 | IL |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Allergy/Immunology (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 177 |
|---|---|
| Services billed | 9,502 across 22 procedure codes |
| Paid by Medicare | $167,566 |
Part D prescriptions in 2024
| Prescriptions (claims) | 391 · 637 30-day fills |
|---|---|
| Patients | 125 |
| Total drug cost | $79,342 |
| Generic share | 67% of claims |
Education and affiliations
| Medical school | Rush Medical College of Rush University |
|---|---|
| Graduation year | 2009 |
| Medicare specialty | Allergy/Immunology |
Medical group
- Allergy Partners PLLCFishers, IN · 143 clinicians
Hospital affiliation
- Northwest Community Hospital 1Arlington Heights, IL
Industry payments (Open Payments)
- 2025$1,425 · 68 payments from 11 companies
- 2024$1,154 · 60 payments from 12 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Astrazeneca Pharmaceuticals LP | $554.23 | 21 |
| Regeneron Healthcare Solutions, Inc. | $189.27 | 10 |
| Novartis Pharmaceuticals Corporation | $165.33 | 12 |
| Genzyme Corporation | $129.63 | 7 |
| Ars Pharmaceuticals Operations, Inc. | $116.34 | 5 |
What the 2025 payments were for
- Food and Beverage$1,425 · 68 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Allergy & Immunology providers in Park Ridge
- 1265701023
- 1912986563
- 1659350205