DR. WILLIAM H FRITZ MD
NPI 1407820913
Internal Medicine in Washington, MO
About Dr. William H Fritz Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. WILLIAM H FRITZ MD (NPI 1407820913) is an individual internal medicine provider in Washington, Missouri, licensed in Missouri (102131) and active in the NPI registry since February 2006. He is enrolled in Medicare PECOS, is affiliated with Mercy Hospital Washington, and is a graduate of University Of Texas Medical School At Houston (1987).
NPPES Registry Identity
Specialties & Licenses
Accepted 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 H Fritz Md 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.
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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Hospital Washington
Acute Care Hospitals · Washington, MOPhysician 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.
Referred Medical Equipment & Supplies CMS DME claims 3
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
WASHINGTON, MO 63090
WASHINGTON, MO 63090
WASHINGTON, MO 63090
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 Fritz's NPI number?
The NPI number for William Fritz is 1407820913. It was assigned to this individual provider in the NPPES registry on February 14, 2006.
Where is William Fritz located?
William Fritz practices at 851 E 5th St Suite 304, Washington, MO 63090. The listed phone number is (636) 390-2350.
What is William Fritz's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is William Fritz enrolled in Medicare?
Yes. William Fritz 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 Fritz accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health and Ambetter from Sunflower Health Plan and 5 other insurers list William Fritz 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 Fritz affiliated with any hospitals?
According to CMS data, William Fritz is affiliated with Mercy Hospital Washington.
When was this NPI record last updated?
The NPPES record for William Fritz was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 41 days 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.
# Dr. William H Fritz, MD · NPI 1407820913
Internal Medicine physician in Washington, Missouri. Individual provider, active in the CMS NPPES registry since February 14, 2006.
## Identity
- **NPI:** 1407820913 (Entity type: Individual)
- **Enumerated:** February 14, 2006
- **Primary specialty:** Internal Medicine · taxonomy 207R00000X
- **State license:** 102131 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 851 E 5TH ST, SUITE 304, Washington, MO 63090-3135
- **Phone:** (636) 390-2350
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Medical school:** University Of Texas Medical School At Houston, class of 1987
## Record status
- **NPPES last updated:** July 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1407820913) · Data from the CMS NPPES public registry.