Kanchana R. Viswanathan, MD
NPI 1760491104ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Long Beach, CA
Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Prohealth Partners, A Medical Group, practicing in Long Beach, California. Their prescriptions cost Medicare Part D more than their services did: $2,589,624 for 4,523 claims, against $50,687 paid for services in 2024. Cequr Corporation was the largest of 34 companies reporting payments in 2025, $5,490 in all, mostly food and beverage. Lists Memorialcare Long Beach Medical Center as a hospital affiliation.
Overview
| NPI | 1760491104 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | MD |
| Sole proprietor | No |
| NPI issued | Aug 5, 2006 |
| Last updated in NPPES | Aug 12, 2013 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | C53345 | CA |
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 - Endocrinology (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 206 |
|---|---|
| Services billed | 606 across 12 procedure codes |
| Paid by Medicare | $50,687 |
Part D prescriptions in 2024
| Prescriptions (claims) | 4,523 · 10,094 30-day fills |
|---|---|
| Patients | 439 |
| Total drug cost | $2,589,624 |
| Generic share | 39% of claims |
Education and affiliations
| Graduation year | 1983 |
|---|---|
| Medicare specialty | Endocrinology |
Medical group
- Prohealth Partners, A Medical GroupLong Beach, CA · 239 clinicians
Hospital affiliation
- Memorialcare Long Beach Medical CenterLong Beach, CA
Industry payments (Open Payments)
- 2025$5,490 · 197 payments from 34 companies
- 2024$3,807 · 150 payments from 28 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Cequr Corporation | $1,268 | 32 |
| Abbott Laboratories | $643.93 | 24 |
| Madrigal Pharmaceuticals | $604.33 | 14 |
| Ascendis Pharma Endocrinology Inc | $296.93 | 10 |
| Bayer Healthcare Pharmaceuticals Inc. | $277.70 | 11 |
What the 2025 payments were for
- Food and Beverage$5,490 · 197 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 25 endocrinologists in Long Beach · All endocrinologists in California