Doctor profile · NPI 1720296940
William Nienaber
Cardiovascular Disease (Cardiology) · Internal Medicine
Practice locations
- Saint Francis Medical Center100 E Outer Rd , Scott City, MO 63780Call 5732642211
- Saint Francis Medical Center100 E Outer Rd Saint Francis Clinic Scott City, Scott City, MO 63780Call 5732642211
- Saint Francis Medical Center1008 N Main St , Sikeston, MO 63801Call 5734711600
- Saint Francis Medical Center1008 N Main St Missouri Delta Medical Center, Sikeston, MO 63801Call 5734711600
- Saint Francis Medical Center1012 N Main St , Sikeston, MO 63801Call 5734710330
- Saint Francis Medical Center112 W Commercial St , Charleston, MO 63834Call 5736834010
- Saint Francis Medical Center112 W Commercial St Saint Francis Clinic Charleston, Charleston, MO 63834Call 5736834010
- Saint Francis Medical Center1212 Saint Francis Dr , Dexter, MO 63841Call 5736143600
- Saint Francis Medical Center1212 Saint Francis Dr Suite 101, Dexter, MO 63841Call 5736143600
- Saint Francis Medical Center150 S Mount Auburn Rd , Cape Girardeau, MO 63703
- Saint Francis Medical Center1702 N Kingshighway St , Cape Girardeau, MO 63701Call 5733392000
- Saint Francis Medical Center1702 N Kingshighway St Sfc Cape Girardeau Kingshighway, Cape Girardeau, MO 63701Call 5733392000
- Saint Francis Medical Center211 Saint Francis Dr , Cape Girardeau, MO 63703
- Saint Francis Medical Center211 Saint Francis Dr , Cape Girardeau, MO 63703
- Saint Francis Medical Center2130 E Jackson Blvd , Jackson, MO 63755Call 5732433115
- Saint Francis Medical Center2130 E Jackson Blvd Saint Francis Clinic Jackson, Jackson, MO 63755Call 5732433115
- Saint Francis Medical Center225 Physicians Park , Poplar Bluff, MO 63901Call 5737275500
- Saint Francis Medical Center225 Physicians Park Suite 400, Poplar Bluff, MO 63901Call 5737275500
- Saint Francis Medical Center24 S Mount Auburn Rd , Cape Girardeau, MO 63703
- Saint Francis Medical Center420 Piedmont Ave , Piedmont, MO 63957Call 5732234233
- Saint Francis Medical Center515 Maple Valley Dr , Farmington, MO 63640Call 5737607920
Training in the source record
- Credential
- MD
- Medical school
- Creighton University School Of Medicine
- Graduation year
- 2005
Residency, fellowship and board certification are not supplied by this CMS file.
Before you book
Ask the practice whether this doctor sees patients of your age for your concern, is accepting new patients, and participates in your exact insurance plan at this location.
Ask who will review your records and follow up if your concerns remain unresolved.
View the NPI Registry recordCMS measures of specific care
These are 2024 results reported for this clinician’s NPI. Each CMS rating describes one measure of care, not patient reviews or an overall doctor grade. The patients, ages and insurance types included depend on the measure and collection method; these are not necessarily Medicare-only or pediatric results. They do not establish performance at a particular current practice.
No individual clinical measures approved by CMS for profile display are available for this doctor in this release. Missing results do not mean poor care. Many clinicians or measures are not publicly reported.
Released 2026-09-10. Only CMS display-approved MIPS and QCDR clinical measures are shown; participation attestations and cost measures are excluded. CMS uses a benchmark drawn from best performers covering at least 10% of the relevant patient population, with an adjustment for small denominators. ModernDoc has not independently validated these ratings. Source data and reported rates · CMS rating methodology · Coverage and reporting limits.
Reported procedure activity
CMS attributes these procedures to this clinician through Original Medicare and Medicare Advantage claims and encounters. Counts span locations and are not unique-patient counts. They do not establish quality, current availability, or that a procedure is offered at any practice listed here. Other insurance populations are not included.
No procedure activity is available for display in this release. This does not mean this doctor has no experience.
CMS release 2026-10-15. CMS describes a 12-month observation window with a three-month claims-processing lag; this file does not provide exact start and end dates. Only categories CMS marks for profile display are shown. Source data · How CMS reports procedures.
Patient experience at affiliated groups
No group survey results are linked in this release. Missing information is not a judgment about this doctor’s care.
CMS group survey year 2024 · Released 2026-09-10. View the source data · How CMS reports these measures.
Reconciled from 21 source records. Individual patient reviews and an overall clinical-quality rating are not available.