Padmaja Kolachana, M.D.
NPI 1316979305ActiveIndividual· Internal Medicine, Nephrology· Hagerstown, MD
Internal Medicine, Nephrology (M.D.) with Washington Nephrology Associates LLP, practicing in Hagerstown, Maryland. In 2024 Medicare paid $153,594 for 468 patients, and Part D covered 797 of their prescriptions, 85% of them generic. Calliditas Therapeutics US Inc. was the largest of 3 companies reporting payments in 2025, $183.74 in all, mostly food and beverage. Lists Inova Fair Oaks Hospital and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1316979305 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 7, 2006 |
| Last updated in NPPES | Jul 9, 2026 |
| Certified by provider | Jul 9, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | D0106015 | MD |
| Internal Medicine, Nephrology | 207RN0300X | MD494900 | PA |
| Internal Medicine, Nephrology | 207RN0300X | 36535 | WV |
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 - Hospitalist (DC); Practitioner - Nephrology (MD); Practitioner - Internal Medicine (PA); Practitioner - Nephrology (PA); Practitioner - Nephrology (VA); Practitioner - Nephrology (WV) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 468 |
|---|---|
| Services billed | 1,623 across 22 procedure codes |
| Paid by Medicare | $153,594 |
Part D prescriptions in 2024
| Prescriptions (claims) | 797 · 1,811 30-day fills |
|---|---|
| Patients | 134 |
| Total drug cost | $185,130 |
| Generic share | 85% of claims |
Education and affiliations
| Graduation year | 1992 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Internal Medicine |
Medical group
- Washington Nephrology Associates LLPWoodbridge, VA · 35 clinicians
Hospital affiliations
- Inova Fair Oaks HospitalFairfax, VA
- Inova Fairfax HospitalFalls Church, VA
- Stonesprings Hospital CenterDulles, VA
- Virginia Hospital CenterArlington, VA
Other facilities
- Fairfax Dialysis CenterDialysis facility · Fairfax, VA
- Encompass Health Rehab Hospital of Northern VAInpatient rehabilitation facility · Aldie, VA
Industry payments (Open Payments)
- 2025$183.74 · 7 payments from 3 companies
- 2024$144.51 · 4 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Calliditas Therapeutics US Inc. | $154.12 | 4 |
| Scpharmaceuticals Inc. | $19.29 | 1 |
| Travere Therapeutics, Inc. | $10.33 | 2 |
What the 2025 payments were for
- Food and Beverage$183.74 · 7 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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