DR. FRANCIS X WALSH M.D.
NPI 1124174347
Internal Medicine in Cos Cob, CT
About Dr. Francis X Walsh M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. FRANCIS X WALSH M.D. (NPI 1124174347) is an individual internal medicine provider in Cos Cob, Connecticut, licensed in Connecticut (14105) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS, holds a CLIA Certificate of Compliance certificate valid through January 2, 2028, and is a graduate of New York Medical College (1967).
NPPES Registry Identity
Specialties & Licenses 2
Other Identifiers 2
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. Francis X Walsh 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.
CLIA Laboratory Certificates CMS CLIA
Laboratory certificates issued under the Clinical Laboratory Improvement Amendments (CLIA) program, which sets federal quality standards for human laboratory testing in the United States. There is no official CMS crosswalk between CLIA and NPI numbers; these certificates are associated with this NPI by matching facility names, locations and phone numbers in the CMS CLIA registry.
Certificate of Compliance 07D0684911
Francis X Walsh MD PC · Cos Cob, CTAreas of Expertise CMS Part B claims 28
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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 06807 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
Referred Medical Equipment & Supplies CMS DME claims 18
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.
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 Francis Walsh's NPI number?
The NPI number for Francis Walsh is 1124174347. It was assigned to this individual provider in the NPPES registry on January 29, 2007.
Where is Francis Walsh located?
Francis Walsh practices at 35 River Rd Suite 200, Cos Cob, CT 06807. The listed phone number is (203) 661-9433.
What is Francis Walsh's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Francis Walsh enrolled in Medicare?
Yes. Francis Walsh 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.
Does Francis Walsh hold a CLIA laboratory certificate?
Yes. A Certificate of Compliance (number 07D0684911) is associated with this NPI, valid through January 2, 2028. CLIA certificates authorize laboratory testing under the federal Clinical Laboratory Improvement Amendments program.
When was this NPI record last updated?
The NPPES record for Francis Walsh was last updated on September 11, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 months 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.