Doctor profile · Federal record

Dr. Nancy Muller, M.D.

Anatomic Pathology & Clinical Pathology Physician (CMS: Pathology) · Hematology (Pathology) Physician · Saint Charles, MO

  • NPI 1770565525
  • Accepts Medicare
  • MIPS 98.4 / 100 · 2023
  • 31 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
300 1St Capitol Dr, Dept. of Pathology
Saint Charles, MO 633012844
(636) 947-5420
fax (636) 947-5257
Mailing address
Po Box 144333
Orlando, FL 328144333

Credentials & registration

NPPES · NUCC
NPI registered
November 2005 — 21 yrs on file
Profile last updated
August 7, 2007
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
207ZP0102X — NUCC code
State license (1)
Missouri #2002009365

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1770565525. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,842
Distinct HCPCS
10
Medicare allowed
$102,049
HCPCS Description Services Patients Avg allowed
88305 Pathology examination of tissue using a microscope, intermediate complexity 1,422 675 $36
88341 Special stained specimen slides to examine tissue, each additional procedure 384 114 $27
88342 Special stained specimen slides to examine tissue, initial procedure 233 164 $33
88307 Pathology examination of tissue using a microscope, moderately high complexity 202 97 $79
88311 Preparation of tissue for examination by removing any calcium present 130 115 $12
88313 Special stained specimen slides to examine tissue including interpretation and report 112 39 $12
88304 Pathology examination of tissue using a microscope, moderately low complexity 108 101 $11
88344 Special stained specimen slides to examine tissue, each multiplex procedure 48 14 $37
88331 Pathology examination of specimen during surgery, first tissue block 39 25 $59
88312 Special stained specimen slides to identify organisms including interpretation and report 30 17 $25

In context: peer comparison

Among 2 peers in Saint Charles Anatomic Pathology & Clinical Pathology Physician, average services per provider: 151. This provider delivers 19× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Nancy Muller's medical specialty?
Dr. Nancy Muller practices Anatomic Pathology & Clinical Pathology Physician in Saint Charles, MO.
Where does Dr. Nancy Muller practice?
Dr. Nancy Muller practices at 300 1St Capitol Dr, Saint Charles, MO 633012844. Office phone: 6369475420.
What is Dr. Nancy Muller's NPI?
Dr. Nancy Muller's National Provider Identifier (NPI) is 1770565525, issued by NPPES.
Does Dr. Nancy Muller accept Medicare assignment?
Yes. Dr. Nancy Muller accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Nancy Muller commonly perform?
Top Medicare-reported procedures in 2023: Pathology examination of tissue using a microscope, intermediate complexity (HCPCS 88305); Special stained specimen slides to examine tissue, each additional procedure (HCPCS 88341); Special stained specimen slides to examine tissue, initial procedure (HCPCS 88342). Source: CMS Medicare Physician & Other Practitioners file.