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DR. JAMES D CASSAT M.D.
NPI 1467498220
Surgery in Washington, MO

Active since June 21, 2006PECOS Enrolled
901 PATIENTS FIRST DR, WASHINGTON, MO 63090(636) 239-7727(636) 239-5021 Get Directions Write a Review

NPPES record last updated: January 18, 2012. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Dr. James D Cassat M.d. NPPES

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

DR. JAMES D CASSAT M.D. (NPI 1467498220) is an individual surgery provider in Washington, Missouri, licensed in Missouri (R3E56) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1467498220
Entity TypeIndividualMale
Primary Taxonomy208600000X
Provider Legal NameDR. JAMES D CASSATCredential: M.D.
Location Address901 PATIENTS FIRST DRWashington, MO 63090-4700
Mailing Address901 Patients First DrWashington, MO 63090-4700 · (636) 239-7727 · Fax (636) 239-5021
Phone(636) 239-7727
Fax(636) 239-5021
Sole ProprietorNo
Enumeration DateJune 21, 2006
Last NPPES UpdateJanuary 18, 2012
✔ NPI 1467498220 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgeryAllopathic & Osteopathic Physicians
Taxonomy Code208600000X
License✔ Licensed in MO · R3E56
Definition
A general surgeon has expertise related to the diagnosis - preoperative, operative and postoperative management - and management of complications of surgical conditions in the following areas: alimentary tract; abdomen; breast, skin and soft tissue; endocrine system; head and neck surgery; pediatric surgery; surgical critical care; surgical oncology; trauma and burns; and vascular surgery. General surgeons increasingly provide care through the use of minimally invasive and endoscopic techniques. Many general surgeons also possess expertise in transplantation surgery, plastic surgery and cardiothoracic surgery.
901 PATIENTS FIRST DR, Washington, MO 63090
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Other Identifiers 4

Other020045289Railroad Medicare
Medicare UPINA13603
Medicaid202037800MO
Medicare PIN019012943

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. James D Cassat M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show James Cassat reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Mercy Clinic Surgical Specialists, LLC
1.2 mi
Vascular Surgery
851 E 5TH ST, SUITE 108
Washington, MO 63090
  • Reassigned Medicare billing, Missouri enrollment
  • 168 clinicians in this Medicare group
NPI 1043530538 (636) 861-7870

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 63090 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
$81.64 typical visit price
range $52.28 – $161.24
Typical copayment $20.41 (range $13.07 – $40.31)
Most-billed visit code 99203
Established Patient
$65.71 typical visit price
range $16.30 – $131.05
Typical copayment $16.42 (range $4.07 – $32.76)
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.

MERCY CLINIC OPHTHALMOLOGY LLC
Ophthalmology
901 PATIENTS FIRST DR
WASHINGTON, MO 63090
Franklin County (636) 231-3651
MRS. CYNTHIA GRACE LOHRER PT/CHT
Physical Therapist
901 PATIENTS FIRST DR, SUITE 2600
WASHINGTON, MO 63090
Franklin County (636) 390-1700
AMY LEE SWOBODA FNP-BC
Nurse Practitioner (Family)
901 PATIENTS FIRST DR
WASHINGTON, MO 63090
Franklin County (636) 239-4100
SUDHANSHU GOGIA MD
Internal Medicine (Hepatology)
901 PATIENTS FIRST DR
WASHINGTON, MO 63090
Franklin County (636) 239-7344
KATARZYNA ANNE KOHLER DO
Family Medicine
901 PATIENTS FIRST DR, SUITE 1200
WASHINGTON, MO 63090
Franklin County (636) 390-1777
VICTORIA L YENZER NP
Nurse Practitioner (Adult Health)
901 PATIENTS FIRST DR
WASHINGTON, MO 63090
Franklin County (636) 239-7500
PATIENTS FIRST HEALTH CARE LLC
Clinic/Center (Urgent Care)
901 PATIENTS FIRST DR
WASHINGTON, MO 63090
Franklin County (636) 390-1777
DR. MARISSA CHRISTINE STOCK MD
Pediatrics
901 PATIENTS FIRST DR
WASHINGTON, MO 63090
Franklin County (636) 231-3690

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 James Cassat's NPI number?

The NPI number for James Cassat is 1467498220. It was assigned to this individual provider in the NPPES registry on June 21, 2006.

Where is James Cassat located?

James Cassat practices at 901 Patients First Dr, Washington, MO 63090. The listed phone number is (636) 239-7727.

What is James Cassat's specialty?

The primary specialty registered for this NPI is Surgery with taxonomy code 208600000X.

Is James Cassat enrolled in Medicare?

Yes. James Cassat is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for James Cassat's services?

According to the CMS Revalidation Reassignment List (October 2026 release), James Cassat reassigns Medicare benefits to Mercy Clinic Surgical Specialists, LLC (Washington, MO). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for James Cassat's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does James Cassat accept?

Health plans from Anthem Blue Cross and Blue Shield and UnitedHealthcare list James Cassat 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.

When was this NPI record last updated?

The NPPES record for James Cassat was last updated on January 18, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.