Kathryn Welty, MD
NPI 1740476761ActiveIndividual· Internal Medicine, Nephrology· Castro Valley, CA
Internal Medicine, Nephrology (MD) in Castro Valley, California, trained at Vanderbilt University School of Medicine (class of 2007). In 2024 Medicare paid $276,061 for 510 patients, and Part D covered 1,393 of their prescriptions, 82% of them generic. Novo Nordisk Inc was the largest of 5 companies reporting payments in 2025, $331.04 in all, mostly food and beverage.
Overview
| NPI | 1740476761 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Sep 24, 2007 |
| Last updated in NPPES | Mar 1, 2024 |
| Certified by provider | Mar 1, 2024 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A126967 | CA |
| Internal Medicine | 207R00000X | ML20008878 | WA |
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 (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 510 |
|---|---|
| Services billed | 2,054 across 31 procedure codes |
| Paid by Medicare | $276,061 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,393 · 3,129 30-day fills |
|---|---|
| Patients | 189 |
| Total drug cost | $330,365 |
| Generic share | 82% of claims |
Education and affiliations
| Medical school | Vanderbilt University School of Medicine |
|---|---|
| Graduation year | 2007 |
| Medicare specialty | Nephrology |
| Telehealth | Offers telehealth |
Medical group
- West Coast KidneyDaly City, CA · 56 clinicians
Hospital affiliations
- Alameda HospitalAlameda, CA
- Alta Bates Summit Medical CenterOakland, CA
- Eden Medical CenterCastro Valley, CA
- Highland HospitalOakland, CA
- Stanford Health CareStanford, CA
Other facilities
- Davita San Leandro DialysisDialysis facility · San Leandro, CA
- Davita San Leandro Marina DialysisDialysis facility · San Leandro, CA
- Shc Oakland WaterfrontDialysis facility · Oakland, CA
Industry payments (Open Payments)
- 2025$331.04 · 8 payments from 5 companies
- 2024$229.50 · 5 payments from 3 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $146.04 | 4 |
| Astellas Pharma US Inc | $114.89 | 1 |
| Scpharmaceuticals Inc. | $33.22 | 1 |
| Fresenius USA Marketing, Inc. | $22.41 | 1 |
| Novartis Pharmaceuticals Corporation | $14.48 | 1 |
What the 2025 payments were for
- Food and Beverage$331.04 · 8 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other nephrologists in Castro Valley
- 1467731828
- 1740243930
- 1295363752