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DR. WILLIAM S RITTER M.D.
NPI 1104825462
Internal Medicine - Cardiovascular Disease in Shawnee Mission, KS

Active since July 19, 2005PECOS EnrolledAccepts Medicare Assignment
9119 W 74TH ST, SUITE 350, SHAWNEE MISSION, KS 66204(913) 789-3290(913) 789-3208 Get Directions Write a Review

NPPES record last updated: March 19, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Dr. William S Ritter M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. WILLIAM S RITTER M.D. (NPI 1104825462) is an individual cardiovascular disease provider in Shawnee Mission, Kansas, licensed in Kansas (04-20789) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Adventhealth Shawnee Mission, and maintains 2 additional practice locations.

NPPES Registry Identity

NPI1104825462
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameDR. WILLIAM S RITTERCredential: M.D.
Location Address9119 W 74TH ST, SUITE 350Shawnee Mission, KS 66204-2215
Mailing Address9119 W 74th St, Suite 350Shawnee Mission, KS 66204-2215 · (913) 789-3290 · Fax (913) 789-3208
Phone(913) 789-3290
Fax(913) 789-3208
Sole ProprietorNo
Medical School CMSJefferson Medical College Of Thomas Jefferson UniversityGraduated 1971
Enumeration DateJuly 19, 2005
Last NPPES UpdateMarch 19, 2025
NPPES CertifiedMarch 19, 2025
✔ NPI 1104825462 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
Licenses✔ Licensed in KS · 04-20789✔ Licensed in MO · R8312
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
9119 W 74TH ST, Shawnee Mission, KS 66204
Open in Google Maps ↗

Secondary Practice Locations 2

Location 17840 W 165th St Ste 260Overland Park, KS 66223-3020 · Phone (913) 632-9400 · Fax (913) 632-9444
Location 27025 College Blvd Ste 300Overland Park, KS 66211-1523 · Phone (913) 632-9400 · Fax (913) 632-9444

Other Identifiers 1

Medicaid1104825462MO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Home State Health, Ambetter from Sunflower Health Plan, Ambetter Health and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. William S Ritter M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9335192905
PECOS Enrollment IDI20051029000336
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 6

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
157 services126 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
138 services102 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
52 services48 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
39 services39 patients
Heart rhythm review and interpretation of continous external ekg over 8-15 days 93248
This service involves wearing a device for 8-15 days that continuously records your heart's electrical activity. It helps in identifying irregular heart rhythms. The recorded data is then reviewed and interpreted by a healthcare professional for any abnormalities.
12 services12 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
11 services11 patients

Hospital Affiliations CMS Care Compare

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Adventhealth Shawnee Mission

Acute Care Hospitals · Shawnee Mission, KS
4/5 CMS rating
OwnershipVoluntary non-profit - Church
CMS Certification Number170104
Location9100 W 74th StreetShawnee Mission, KS 66204 · Johnson County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 66204 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$122.41 typical visit price
range $53.00 – $161.67
Typical copayment $30.60 (range $13.25 – $40.41)
Most-billed visit code 99204
Established Patient
$66.40 typical visit price
range $16.88 – $132.11
Typical copayment $16.60 (range $4.22 – $33.02)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. KIMBERLY DIANE MATTHEWS MD
Obstetrics & Gynecology
9119 W 74TH ST, STE 300
SHAWNEE MISSION, KS 66204
Johnson County (913) 677-3113
WILLIAM O REED, JR, MD PA
Clinic/Center (Multi-Specialty)
9119 W 74TH ST, STE 354
MERRIAM, KS 66204
Johnson County (913) 432-7200
DR. JHULAN MUKHARJI M.D.
Internal Medicine (Cardiovascular Disease)
9119 W 74TH ST, SUITE 350
SHAWNEE MISSION, KS 66204
Johnson County (913) 789-3290
ELIZABETH C PARKS PA
Physician Assistant
9119 W 74TH ST, SUITE 150
SHAWNEE MISSION, KS 66204
Johnson County (913) 362-5510
DR. AMY LYNN GIEDT M.D.
Obstetrics & Gynecology
9119 W 74TH ST, SUITE 300
SHAWNEE MISSION, KS 66204
Johnson County (913) 677-3113
DR. REAGAN M WITTEK M.D.
Obstetrics & Gynecology
9119 W 74TH ST, SUITE 300
SHAWNEE MISSION, KS 66204
Johnson County (913) 677-3113
AMY MARGARET GORDON-AMES
Family Medicine
9119 W 74TH ST, STE 150
MERRIAM, KS 66204
Johnson County (913) 789-1980
KAREN ANN WENNER NP
Nurse Practitioner
9119 W 74TH ST, SUITE 354
MERRIAM, KS 66204
Johnson County (913) 894-2121

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is William Ritter's NPI number?

The NPI number for William Ritter is 1104825462. It was assigned to this individual provider in the NPPES registry on July 19, 2005.

Where is William Ritter located?

William Ritter practices at 9119 W 74th St Suite 350, Shawnee Mission, KS 66204. The listed phone number is (913) 789-3290.

What is William Ritter's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is William Ritter enrolled in Medicare?

Yes. William Ritter is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does William Ritter accept?

Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Home State Health, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 3 other insurers list William Ritter as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is William Ritter affiliated with any hospitals?

According to CMS data, William Ritter is affiliated with Adventhealth Shawnee Mission.

When was this NPI record last updated?

The NPPES record for William Ritter was last updated on March 19, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.