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

Nancy C. Muller, MD

Individual provider Hematology (Pathology) Physician · NPI 1770565525

Nancy C. Muller, MD practises Pathology in Saint Charles, Missouri. Graduated from Washington University School of Medicine in 1995, 31 years ago. Practices with Analytical Pathology Services Ltd, a 10-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
31
Trained at
Washington University School of Medicine
Licensed in
MO
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

See every abbreviation used in this directory →

Practice location Address checks out

300 1st Capitol Dr Dept OF Pathology
Saint Charles, MO 63301-2844 Not confirmed with CMS for 19 years — call before visiting
Phone: (636) 947-5420
Fax: (636) 947-5257
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Anatomic Pathology & Clinical Pathology Physician (primary) Taxonomy 207ZP0102X · Licence 2002009365 (MO)
Hematology (Pathology) Physician Taxonomy 207ZH0000X · Licence 2002009365 (MO)

Record details

NPI number1770565525
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 17, 2005
Last updated in NPPESAugust 7, 2007

Medicare enrollment

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

Medicare specialtyPATHOLOGY
Medical schoolWASHINGTON UNIVERSITY SCHOOL OF MEDICINE
Graduated 1995 (31 years in practice)
Group practice Analytical Pathology Services Ltd — 10 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 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 patients742
Services billed 2,394 a service is one billed item, such as a visit, a test or a procedure
Average patient age72

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.

Colleagues at Analytical Pathology Services Ltd

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 10 clinicians in the practice; 8 are shown here.