Dr Francis X Walsh, MD - Medicare Nephrology in Cos Cob, CT

Dr Francis X Walsh, MD is a medicare enrolled "Internal Medicine - Nephrology" physician in Cos Cob, Connecticut. He went to New York Medical College and graduated in 1967 and has 57 years of diverse experience with area of expertise as Nephrology. His current practice location is 35 River Rd, Suite 200, Cos Cob, Connecticut. You can reach out to his office (for appointments etc.) via phone at (203) 661-9433.

Dr Francis X Walsh is licensed to practice in Connecticut (license number 14105) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1124174347.

Contact Information

Dr Francis X Walsh, MD
35 River Rd, Suite 200,
Cos Cob, CT 06807-2717
(203) 661-9433
(203) 661-2918

Map and Direction




Physician's Profile

Full NameDr Francis X Walsh
GenderMale
SpecialityNephrology
Experience57 Years
Location35 River Rd, Cos Cob, Connecticut
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Francis X Walsh attended and graduated from New York Medical College in 1967
  NPI Data:
  • NPI Number: 1124174347
  • Provider Enumeration Date: 01/29/2007
  • Last Update Date: 07/09/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 0941107270
  • Enrollment ID: I20040224001197

Medical Identifiers

Medical identifiers for Dr Francis X Walsh such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1124174347NPI-NPPES
010014105CT02OtherCTANTHEM BLUE CROSS
00516867MedicaidNY

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 14105 (Connecticut)Primary
207RN0300XInternal Medicine - Nephrology 14105 (Connecticut)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Constellation HospiceOrange, CTHospice
Greenwich Hospital Association -Greenwich, CTHospital
Stamford HospitalStamford, CTHospital
Witherell, NathanielGreenwich, CTNursing home

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Francis X Walsh allows following entities to bill medicare on his behalf.
Entity NameFrancis X Walsh Md Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1902271729
PECOS PAC ID: 0143127472
Enrollment ID: O20160127002673

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Francis X Walsh is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Francis X Walsh, MD
35 River Rd, Suite 200,
Cos Cob, CT 06807-2717

Ph: (203) 661-9433
Dr Francis X Walsh, MD
35 River Rd, Suite 200,
Cos Cob, CT 06807-2717

Ph: (203) 661-9433

Reviews and Comments


Internal Medicine Doctors in Cos Cob, CT

Ronald M Levine, MD
Nephrology
Medicare: Not Enrolled in Medicare
Practice Location: 475 Cognewaugh Rd, Cos Cob, CT 06807
Phone: 203-629-5560    
Ellen N Wolfson, M.D.
Nephrology
Medicare: Not Enrolled in Medicare
Practice Location: 35 River Road, Cos Cob, CT 06807
Phone: 203-625-0333    Fax: 203-625-8331
Adam Messenger, M.D.
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 31 River Rd, 200, Cos Cob, CT 06807
Phone: 203-661-9433    
Dr. Rosemary Mazanet, MD
Nephrology
Medicare: Not Enrolled in Medicare
Practice Location: 24 Daffodil Ln, Cos Cob, CT 06807
Phone: 203-861-0077    
Chaula K. Vora, M.D.
Nephrology
Medicare: Accepting Medicare Assignments
Practice Location: 35 River Rd Ste 101, Cos Cob, CT 06807
Phone: 203-863-4750    Fax: 203-863-4580

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.