Siddhesh Ramesh Lotlikar, MD
NPI 1124243431ActiveIndividual· Internal Medicine, Nephrology· Berkeley, CA
Internal Medicine, Nephrology (MD) with Northbay Physicians Surgery Center, LLC, practicing in Berkeley, California. 395 Medicare patients in 2024, $92,359 paid; nearly all of their 419 Part D prescriptions were generic (91%). Calliditas Therapeutics US Inc. reported $19.78 in payments in 2025, mostly food and beverage. Lists Northbay Medical Center as a hospital affiliation.
Overview
| NPI | 1124243431 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Apr 13, 2007 |
| Last updated in NPPES | Jan 28, 2025 |
| Certified by provider | Jan 28, 2025 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | A151100 | CA |
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 | 395 |
|---|---|
| Services billed | 969 across 25 procedure codes |
| Paid by Medicare | $92,359 |
Part D prescriptions in 2024
| Prescriptions (claims) | 419 · 678 30-day fills |
|---|---|
| Patients | 139 |
| Total drug cost | $49,800 |
| Generic share | 91% of claims |
Education and affiliations
| Graduation year | 2002 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- Northbay Physicians Surgery Center, LLCFairfield, CA · 324 clinicians
Hospital affiliation
- Northbay Medical CenterFairfield, CA
Industry payments (Open Payments)
- 2025$19.78 · 1 payment from 1 company
- 2024$87.99 · 6 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Calliditas Therapeutics US Inc. | $19.78 | 1 |
What the 2025 payments were for
- Food and Beverage$19.78 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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