Francis X. Walsh, M.D.
NPI 1124174347ActiveIndividual· Internal Medicine· Cos Cob, CT
Internal Medicine (M.D.) in Cos Cob, Connecticut, trained at New York Medical College (class of 1967). Their prescriptions cost Medicare Part D more than their services did: $1,182,174 for 29,986 claims, against $336,475 paid for services in 2024. Abbvie Inc. was the largest of 14 companies reporting payments in 2025, $995.35 in all, mostly food and beverage.
Overview
| NPI | 1124174347 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | Yes |
| NPI issued | Jan 29, 2007 |
| Last updated in NPPES | Sep 11, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 14105 | CT |
| Internal Medicine, Nephrology | 207RN0300X | 14105 | CT |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Nov 10, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 11, 2026 | No match | — |
| New York OMIG · Nov 11, 2026 | No match | — |
| Ohio Medicaid · Nov 11, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 11, 2026 | No match | — |
| Washington HCA · Nov 11, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (CT); Practitioner - Nephrology (NY) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 642 |
|---|---|
| Services billed | 7,461 across 55 procedure codes |
| Paid by Medicare | $336,475 |
Part D prescriptions in 2024
| Prescriptions (claims) | 29,986 · 36,049 30-day fills |
|---|---|
| Patients | 825 |
| Total drug cost | $1,182,174 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | New York Medical College |
|---|---|
| Graduation year | 1967 |
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Rehabilitation Associates IncFairfield, CT · 529 clinicians
Hospital affiliation
- Greenwich Hospital Association -Greenwich, CT
Other facilities
- Constellation Home CareHome health agency · Norwalk, CT
- Elara CaringHome health agency · Rocky Hill, CT
- Health Care Connectors LLCHome health agency · Greenwich, CT
- Sterling Care LLCHome health agency · Greenwich, CT
- Visiting Nurse & Hospice of Fairfield County, IncHome health agency · Wilton, CT
- Caring Hospice Services of Connecticut LLCHospice · Stamford, CT
- Constellation Home CareHospice · Norwalk, CT
- Visiting Nurse & Hospice of Fairfield County, IncHospice · Wilton, CT
- Burke Rehabilitation HospitalInpatient rehabilitation facility · White Plains, NY
- Nathaniel Witherell, theNursing home · Greenwich, CT
Industry payments (Open Payments)
- 2025$995.35 · 49 payments from 14 companies
- 2024$2,103 · 105 payments from 15 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Abbvie Inc. | $182.14 | 10 |
| Acadia Pharmaceuticals Inc | $181.27 | 9 |
| Astrazeneca Pharmaceuticals LP | $166.19 | 9 |
| Novo Nordisk Inc | $78.50 | 4 |
| Pfizer Inc. | $63.90 | 3 |
What the 2025 payments were for
- Food and Beverage$995.35 · 49 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other Internal Medicine providers in Cos Cob
- 1962997940
- 1902271729
- 1801748801
- 1528114758
- 1154473817
- 1821550294
- 1679266811
- 1790043040
- 1942263033
- 1184795759