CATHERINE FILLEY HOWE MD
NPI 1033573845
Internal Medicine - Gastroenterology in Saint Louis, MO
About Catherine Filley Howe Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CATHERINE FILLEY HOWE MD (NPI 1033573845) is an individual gastroenterology provider in Saint Louis, Missouri, licensed in Missouri (2022027464) and active in the NPI registry since April 2016. She is enrolled in Medicare PECOS, is affiliated with Mercy Hospital St Louis, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Locations 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Catherine Filley Howe 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.
Medicare Billing Reassignment
Medicare enrollment records show Catherine Howe reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Saint Louis, MO 63141
- Reassigned Medicare billing, Missouri enrollment
- 69 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 10
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Mercy Hospital St Louis
Acute Care Hospitals · Saint Louis, MOSt Lukes Hospital
Acute Care Hospitals · Chesterfield, MOPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 63141 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
SAINT LOUIS, MO 63141
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 Catherine Howe's NPI number?
The NPI number for Catherine Howe is 1033573845. It was assigned to this individual provider in the NPPES registry on April 7, 2016.
Where is Catherine Howe located?
Catherine Howe practices at 615 S New Ballas Rd Ste 1200, Saint Louis, MO 63141. The listed phone number is (314) 251-2880.
What is Catherine Howe's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Catherine Howe enrolled in Medicare?
Yes. Catherine Howe 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.
Which organization bills Medicare for Catherine Howe's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Catherine Howe reassigns Medicare benefits to Mercy Clinic Gastroenterology, LLC (Saint Louis, 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 Catherine Howe's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Catherine Howe accept?
Health plans from Ambetter Health, Ambetter Health of Delaware, Ambetter from Arkansas Health & Wellness, Ambetter from Sunflower Health Plan and Ambetter of Oklahoma and 3 other insurers list Catherine Howe 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 Catherine Howe affiliated with any hospitals?
According to CMS data, Catherine Howe is affiliated with Mercy Hospital St Louis and St Lukes Hospital.
When was this NPI record last updated?
The NPPES record for Catherine Howe was last updated on January 3, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Catherine Filley Howe, MD · NPI 1033573845
Gastroenterology physician in Saint Louis, Missouri. Individual provider, active in the CMS NPPES registry since April 7, 2016.
## Identity
- **NPI:** 1033573845 (Entity type: Individual)
- **Enumerated:** April 7, 2016
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** 2022027464 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 615 S NEW BALLAS RD STE 1200, Saint Louis, MO 63141-8221
- **Phone:** (314) 251-2880
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Mercy Clinic Gastroenterology, LLC (NPI 1528295334, Saint Louis, MO), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Virginia Commonwealth University, School Of Medicine, class of 2016
## Record status
- **NPPES last updated:** January 3, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1033573845) · Data from the CMS NPPES public registry.