Dr. Patrick R. Hemmer, M.D.
Pathology (Anatomic Pathology & Clinical Pathology Physician)
- Medicare participating
At a glance
- Medical school
- Sanford School of Medicine of University of South Dakota (2001)
- Years since graduation
- 25
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 901
Licensed in Illinois since 2005, according to the Illinois Department of Financial and Professional Regulation. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2001Medical school: Sanford School of Medicine of University of South Dakota
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Anatomic Pathology & Clinical Pathology Physician primary
IL license 036114938 (first issued 2005; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- St Johns Hospital Springfield, IL
- Hshs St Elizabeth's Hospital O Fallon, IL
- St Anthonys Memorial Hospital Effingham, IL
- St Josephs Hospital Breese, IL
- St Marys Hospital Decatur, IL
Medical groups
- Associated PAthologists LTD (10 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 901
- Services billed
- 2,540
- Patients’ average age
- 74
| Service | Times | Patients |
|---|---|---|
| Pathology examination of tissue using a microscope, intermediate complexity | 541 | 295 |
| Special stained specimen slides to examine tissue, each additional procedure | 276 | 43 |
| Cell examination of specimen, selective cellular enhancement technique | 97 | 92 |
| Protein measurement, serum | 87 | 79 |
| Special stained specimen slides to examine tissue, initial procedure | 76 | 64 |
| Immunologic analysis technique on serum (immunofixation) | 57 | 52 |
| Pathology examination of tissue using a microscope, moderately high complexity | 56 | 40 |
| Pathology examination of tissue using a microscope, moderately low complexity | 52 | 45 |
| Protein measurement, body fluid | 37 | 37 |
| Special stained specimen slides to examine tissue including interpretation and report | 35 | 18 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.