Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.

Dr. William S Ritter, MD

Individual provider Cardiovascular Disease Physician · NPI 1104825462

Dr. William S Ritter, MD is a Cardiovascular Disease (Cardiology) in Shawnee Mission, Kansas. Graduated from Jefferson Medical College of Thomas Jefferson University in 1971, 55 years ago. Practices with Shawnee Mission Medical Center Inc, a 277-clinician group, works from 3 locations and accepts Medicare assignment. Licensed in Kansas and Missouri.

Years since qualifying
55
Trained at
Jefferson Medical College of Thomas Jefferson University
Licensed in
KS, 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

9119 W 74th St Ste 350
Shawnee Mission, KS 66204-2215
Phone: (913) 789-3290
Fax: (913) 789-3208
Show map & directions

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

Additional practice locations (2)

  • 7025 College Blvd Ste 300, Overland Park, KS 66211-1523 — (913) 632-9400
  • 7840 W 165th St Ste 260, Overland Park, KS 66223-3020 — (913) 632-9400

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 04-20789 (KS)
Cardiovascular Disease Physician Taxonomy 207RC0000X · Licence R8312 (MO)

Record details

NPI number1104825462
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJuly 19, 2005
Last updated in NPPESMarch 19, 2025
Certification dateMarch 19, 2025
Mailing address9119 W 74th St, Suite 350, Shawnee Mission, KS 66204-2215

Medicare enrollment

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

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolJEFFERSON MEDICAL COLLEGE OF THOMAS JEFFERSON UNIVERSITY
Graduated 1971 (55 years in practice)
Group practice Shawnee Mission Medical Center Inc — 277 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount

Other providers in Shawnee Mission