Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Patrick R Hemmer, MD

Individual provider Anatomic Pathology & Clinical Pathology Physician · NPI 1215908850

Patrick R Hemmer, MD practises Pathology in Springfield, Illinois. Graduated from Sanford School of Medicine of University of South Dakota in 2001, 25 years ago. Practices with Associated Pathologists Ltd, a 10-clinician group and accepts Medicare assignment. Licensed in Illinois.

Years since qualifying
25
Trained at
Sanford School of Medicine of University of South Dakota
Licensed in
IL
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

800 E Carpenter St
Springfield, IL 62769-0001 Not confirmed with CMS for 15 years — call before visiting
Phone: (217) 544-6464
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence 036114938 (IL)

Record details

NPI number1215908850
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJanuary 31, 2006
Last updated in NPPESMay 12, 2011

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPATHOLOGY
Medical schoolSANFORD SCHOOL OF MEDICINE OF UNIVERSITY OF SOUTH DAKOTA
Graduated 2001 (25 years in practice)
Group practice Associated Pathologists Ltd — 10 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations6 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients901
Services billed 2,540 a service is one billed item, such as a visit, a test or a procedure
Average patient age74

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • St Anthonys Memorial Hospital Hospital · Effingham, IL · listed as St Anthonys Memorial Hospital of the Hospital Sisters of the Third
  • Hshs St Elizabeth'S Hospital Hospital · O Fallon, IL
  • St Johns Hospital Hospital · Springfield, IL
  • St Josephs Hospital Hospital · Breese, IL
  • St Marys Hospital Hospital · Decatur, IL

Colleagues at Associated Pathologists Ltd

Clinicians the CMS Doctors & Clinicians file lists under the same group practice.

Other providers in Springfield