Viswanathan S. Iyer, MD
NPI 1871718338ActiveIndividual· Internal Medicine, Nephrology· Camp Hill, PA
Internal Medicine, Nephrology (MD) with Pinnacle Health Medical Services and 2 other groups, practicing in Camp Hill, Pennsylvania. In 2024 Medicare paid $263,464 for 643 patients, and Part D covered 2,414 of their prescriptions, 81% of them generic. Vifor Pharma, Inc. was the largest of 15 companies reporting payments in 2025, $1,445 in all, mostly food and beverage. Lists Fulton County Medical Center and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1871718338 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | Yes |
| NPI issued | Apr 17, 2007 |
| Last updated in NPPES | Mar 3, 2022 |
| Certified by provider | Mar 3, 2022 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Nephrology Primary | 207RN0300X | MD431419 | PA |
| Internal Medicine, Critical Care Medicine | 207RC0200X | MD431419 | PA |
| Hospitalist | 208M00000X | MD431419 | PA |
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 - Internal Medicine (CA); Practitioner - Nephrology (PA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 643 |
|---|---|
| Services billed | 2,801 across 28 procedure codes |
| Paid by Medicare | $263,464 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,414 · 4,020 30-day fills |
|---|---|
| Patients | 245 |
| Total drug cost | $364,036 |
| Generic share | 81% of claims |
Education and affiliations
| Graduation year | 1990 |
|---|---|
| Medicare specialty | Nephrology |
| Secondary specialties | Critical Care (Intensivists), Internal Medicine |
| Telehealth | Offers telehealth |
Medical groups
- Pinnacle Health Medical ServicesHarrisburg, PA · 1,019 clinicians
- Critical Care Medical Management Associates PLLCNew York, NY · 30 clinicians
- Associates in Kidney Diseases Hypertension and Intensive Care MedicineCamp Hill, PA · 3 clinicians
Hospital affiliations
- Fulton County Medical CenterMcConnellsburg, PA
- Penn State Health Hampden Medical CenterEnola, PA
- Penn State Health Holy Spirit Medical CenterCamp Hill, PA
- Upmc CarlisleCarlisle, PA
- Upmc Pinnacle HospitalsHarrisburg, PA
Other facilities
- Davita Carlisle Regional DialysisDialysis facility · Carlisle, PA
- Davita Rossmoyne DialysisDialysis facility · Mechanicsburg, PA
- Davita West Shore DialysisDialysis facility · Lemoyne, PA
- Fkc Capital AreaDialysis facility · Harrisburg, PA
- Fkc HarrisburgDialysis facility · Harrisburg, PA
Industry payments (Open Payments)
- 2025$1,445 · 74 payments from 15 companies
- 2024$1,361 · 76 payments from 17 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Vifor Pharma, Inc. | $221.49 | 10 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $202.83 | 11 |
| Ardelyx, Inc. | $202.33 | 14 |
| Calliditas Therapeutics US Inc. | $160.87 | 7 |
| Astrazeneca Pharmaceuticals LP | $147.38 | 7 |
What the 2025 payments were for
- Food and Beverage$1,445 · 74 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All Internal Medicine, Nephrology providers in Pennsylvania →