Nancy Muller, M.D.
NPI 1770565525 · Anatomic Pathology & Clinical Pathology Physician · Saint Charles, MO
Enrolled with Medicare as Practitioner - Pathology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Nancy Muller, M.D. is a Anatomic Pathology & Clinical Pathology Physician provider in Saint Charles, MO (NPI 1770565525).
Provider details
- NPI number
- 1770565525
- Entity type
- Individual
- Primary specialty
- Anatomic Pathology & Clinical Pathology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- 2002009365 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
20 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
2,311 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Pathology Examination of Tissue Using a Microscope, Intermediate Complexity88305 | 1,140 | $36 |
| Special Stained Specimen Slides to Examine Tissue, Each Additional Procedure88341 | 316 | $27 |
| Special Stained Specimen Slides to Examine Tissue, Initial Procedure88342 | 205 | $34 |
| Pathology Examination of Tissue Using a Microscope, Moderately High Complexity88307 | 145 | $78 |
| Preparation of Tissue for Examination By Removing Any Calcium Present88311 | 103 | $12 |
| Special Stained Specimen Slides to Examine Tissue Including Interpretation and Report88313 | 87 | $12 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-17
- Last updated
- 2007-08-07
Frequently asked questions
- What is Nancy Muller's NPI number?
- Nancy Muller's National Provider Identifier (NPI) is 1770565525, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nancy Muller's specialty?
- Nancy Muller is listed in the NPPES registry with a primary specialty of Anatomic Pathology & Clinical Pathology Physician (Allopathic & Osteopathic Physicians).
- Where is Nancy Muller located?
- Nancy Muller's practice location on file with NPPES is 300 1st Capitol Dr, Saint Charles, MO 63301-2844.
- What is Nancy Muller's phone number?
- The practice phone number listed in the NPPES registry for Nancy Muller is (636) 947-5420.
- Does Nancy Muller accept Medicare?
- Nancy Muller is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Nancy Muller's NPI active?
- Yes — Nancy Muller's NPI (1770565525) is active in the NPPES registry as of the last update on 2007-08-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.