Neha Nainani, MD, MPH
NPI 1639317837ActiveIndividual· Internal Medicine, Nephrology· Stockton, CA
Internal Medicine, Nephrology (MD, MPH) with West Coast Kidney, practicing in Stockton, California. In 2024 Medicare paid $241,308 for 542 patients, and Part D covered 1,671 of their prescriptions, 78% of them generic. Fresenius USA Marketing, Inc. was the largest of 9 companies reporting payments in 2025, $841.89 in all, mostly food and beverage. Lists Contra Costa Regional Medical Center and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1639317837 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD, MPH |
| Sole proprietor | No |
| NPI issued | Jan 26, 2009 |
| Last updated in NPPES | Sep 24, 2015 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A119121 | CA |
| Internal Medicine, Nephrology | 207RN0300X | 003899 | NY |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 10, 2026 | No match | — |
| New York OMIG · Nov 10, 2026 | No match | — |
| Ohio Medicaid · Nov 10, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 10, 2026 | No match | — |
| Washington HCA · Nov 10, 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 | 542 |
|---|---|
| Services billed | 2,257 across 24 procedure codes |
| Paid by Medicare | $241,308 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,671 · 3,175 30-day fills |
|---|---|
| Patients | 288 |
| Total drug cost | $359,300 |
| Generic share | 78% of claims |
Education and affiliations
| Graduation year | 2004 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- West Coast KidneyDaly City, CA · 56 clinicians
Hospital affiliations
- Contra Costa Regional Medical CenterMartinez, CA
- John Muir Medical Center - Concord CampusConcord, CA
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA
- Sutter Delta Medical CenterAntioch, CA
Other facilities
- Fresenius Medical Care Diablo East AntiochDialysis facility · Antioch, CA
Industry payments (Open Payments)
- 2025$841.89 · 40 payments from 9 companies
- 2024$801.32 · 33 payments from 11 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Fresenius USA Marketing, Inc. | $281.89 | 18 |
| Mallinckrodt Hospital Products Inc. | $200.18 | 9 |
| Nxstage Medical, Inc. | $98.21 | 1 |
| Astrazeneca Pharmaceuticals LP | $81.09 | 4 |
| Amgen Inc. | $67.02 | 3 |
What the 2025 payments were for
- Food and Beverage$821.67 · 39 payments
- Education$20.22 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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