Rama Challapalli Sri, M.D.
NPI 1891921524ActiveIndividual· Internal Medicine, Nephrology· Joplin, MO
Internal Medicine, Nephrology (M.D.) with Freeman-Oak Hill Health System, practicing in Joplin, Missouri. Their prescriptions cost Medicare Part D more than their services did: $293,596 for 3,246 claims, against $165,222 paid for services in 2024. Otsuka America Pharmaceutical, Inc. was the largest of 2 companies reporting payments in 2025, $230.87 in all, mostly food and beverage. Lists Cox Barton County Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1891921524 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 9, 2009 |
| Last updated in NPPES | Mar 6, 2019 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 2017031969 | MO |
| Internal Medicine | 207R00000X | MT194414 | PA |
| Internal Medicine, Nephrology | 207RN0300X | 16966 | NH |
| Internal Medicine, Nephrology | 207RN0300X | 261829 | MA |
| Hospitalist | 208M00000X | 2017031969 | MO |
Exclusion screening
| List | Result | Details |
|---|---|---|
| HHS-OIG LEIE · Oct 9, 2026 | No match | Checked by NPI and by name + state |
| North Carolina Medicaid · Nov 4, 2026 | No match | — |
| New York OMIG · Nov 4, 2026 | No match | — |
| Ohio Medicaid · Nov 4, 2026 | No match | — |
| Pennsylvania Medicheck · Nov 4, 2026 | No match | — |
| Washington HCA · Nov 4, 2026 | No match | — |
Official OIG search · How matching works ·Bulk check a roster
Medicare
| Enrollment (PECOS) | Enrolled Practitioner - Nephrology (KS); Practitioner - Nephrology (MO); Practitioner - Nephrology (OK) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 439 |
|---|---|
| Services billed | 1,912 across 22 procedure codes |
| Paid by Medicare | $165,222 |
Part D prescriptions in 2024
| Prescriptions (claims) | 3,246 · 6,022 30-day fills |
|---|---|
| Patients | 411 |
| Total drug cost | $293,596 |
| Generic share | 89% of claims |
Education and affiliations
| Graduation year | 2007 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Hospitalist |
| Telehealth | Offers telehealth |
Medical group
- Freeman-Oak Hill Health SystemJoplin, MO · 394 clinicians
Hospital affiliations
- Cox Barton County HospitalLamar, MO
- Freeman Health System - Freeman WestJoplin, MO
- Freeman Neosho HospitalNeosho, MO
- Labette HealthParsons, KS
- Nevada Regional Medical CenterNevada, MO
Other facilities
- Freeman Nephrology & Dialysis CenterDialysis facility · Joplin, MO
- Heartland Kidney and Dialysis CenterDialysis facility · Neosho, MO
- Heartland Kidney CenterDialysis facility · Carthage, MO
- Heartland Miami Dx LLPDialysis facility · Miami, OK
- Nevada DialysisDialysis facility · Nevada, MO
- Freeman Health SystemsInpatient rehabilitation facility · Joplin, MO
Industry payments (Open Payments)
- 2025$230.87 · 3 payments from 2 companies
- 2024$202.31 · 6 payments from 4 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Otsuka America Pharmaceutical, Inc. | $139.91 | 2 |
| Amgen Inc. | $90.96 | 1 |
What the 2025 payments were for
- Food and Beverage$230.87 · 3 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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