Mangaraju Chakka, M.D.
NPI 1104862200ActiveIndividual· Internal Medicine, Clinical Cardiac Electrophysiology· Little Rock, AR
Internal Medicine, Clinical Cardiac Electrophysiology (M.D.) in Little Rock, Arkansas, trained at New York University School of Medicine (class of 1998). Their prescriptions cost Medicare Part D more than their services did: $1,202,699 for 6,143 claims, against $274,363 paid for services in 2024. Vivaquant Inc, DBA Rhythm Express was the largest of 11 companies reporting payments in 2025, $1,020 in all, mostly food and beverage.
Overview
| NPI | 1104862200 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jun 20, 2006 |
| Last updated in NPPES | Oct 28, 2026 |
| Certified by provider | Oct 28, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Clinical Cardiac Electrophysiology Primary | 207RC0001X | E4358 | AR |
| Internal Medicine, Cardiovascular Disease | 207RC0000X | E4358 | AR |
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 - Cardiac Electrophysiology (AR) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 1,117 |
|---|---|
| Services billed | 4,716 across 93 procedure codes |
| Paid by Medicare | $274,363 |
Part D prescriptions in 2024
| Prescriptions (claims) | 6,143 · 10,079 30-day fills |
|---|---|
| Patients | 801 |
| Total drug cost | $1,202,699 |
| Generic share | 75% of claims |
Education and affiliations
| Medical school | New York University School of Medicine |
|---|---|
| Graduation year | 1998 |
| Medicare specialty | Cardiac Electrophysiology |
| Secondary specialties | Cardiovascular Disease (Cardiology) |
Medical group
- St Vincent Infirmary Medical CenterLittle Rock, AR · 39 clinicians
Hospital affiliations
- Arkansas Heart Hospital, LLCLittle Rock, AR
- Chi St. Vincent Hospital Hot SpringsHot Springs, AR
- Chi-St Vincent InfirmaryLittle Rock, AR
- St Vincent Medical Center/NorthSherwood, AR
Industry payments (Open Payments)
- 2025$1,020 · 24 payments from 11 companies
- 2024$1,652 · 23 payments from 9 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vivaquant Inc, DBA Rhythm Express | $186.06 | 1 |
| Abbott Laboratories | $177.32 | 4 |
| Amgen Inc. | $134.90 | 1 |
| Zoll Respicardia, Inc. | $122.61 | 1 |
| E.R. Squibb & Sons, L.L.C. | $101.86 | 6 |
What the 2025 payments were for
- Food and Beverage$1,020 · 24 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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