Karthikeyan Venkatachalam, M.D
NPI 1760747430ActiveIndividual· Internal Medicine, Nephrology· Saint Louis, MO
Internal Medicine, Nephrology (M.D) with Ssm Health Care Group and 1 other group, practicing in Saint Louis, Missouri. Their prescriptions cost Medicare Part D more than their services did: $590,495 for 1,318 claims, against $141,892 paid for services in 2024. Nxstage Medical, Inc. was the largest of 18 companies reporting payments in 2025, $1,048 in all, mostly food and beverage. Lists Baptist Medical Center-Yazoo and 3 other hospitals as hospital affiliations.
Overview
| NPI | 1760747430 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D |
| Sole proprietor | No |
| NPI issued | Jul 9, 2012 |
| Last updated in NPPES | Jun 26, 2026 |
| Certified by provider | Jun 26, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | 2026027542 | MO |
| Internal Medicine, Geriatric Medicine | 207RG0300X | 30294 | MS |
| Internal Medicine, Nephrology | 207RN0300X | 30294 | MS |
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 (MO); Practitioner - Nephrology (MS) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 423 |
|---|---|
| Services billed | 1,660 across 22 procedure codes |
| Paid by Medicare | $141,892 |
Part D prescriptions in 2024
| Prescriptions (claims) | 1,318 · 2,177 30-day fills |
|---|---|
| Patients | 209 |
| Total drug cost | $590,495 |
| Generic share | 72% of claims |
Education and affiliations
| Graduation year | 2010 |
|---|---|
| Medicare specialty | Nephrology |
Medical groups
- Ssm Health Care GroupSaint Louis, MO · 940 clinicians
- Central Nephrology Clinic PLLCFlowood, MS · 17 clinicians
Hospital affiliations
- Baptist Medical Center-YazooYazoo City, MS
- Mississippi Baptist Medical CenterJackson, MS
- Ssm Health Saint Louis University HospitalSaint Louis, MO
- St Dominic-Jackson Memorial HospitalJackson, MS
Other facilities
- Fmc HazlehurstDialysis facility · Hazlehurst, MS
- Fmc Lakeland Home ProgramDialysis facility · Flowood, MS
- Fmc Mid MississippiDialysis facility · Jackson, MS
- Fmc Southwest JacksonDialysis facility · Jackson, MS
Industry payments (Open Payments)
- 2025$1,048 · 44 payments from 18 companies
- 2024$1,363 · 48 payments from 20 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Nxstage Medical, Inc. | $101.88 | 1 |
| Novartis Pharmaceuticals Corporation | $100.42 | 4 |
| Ani Pharmaceuticals, Inc. | $98.42 | 5 |
| Amgen Inc. | $93.77 | 1 |
| Otsuka America Pharmaceutical, Inc. | $88.40 | 4 |
What the 2025 payments were for
- Food and Beverage$1,014 · 42 payments
- Education$33.24 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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