Shamsundar Ramrattan, D.O.
NPI 1598968844ActiveIndividual· Internal Medicine· Canyon Country, CA
Internal Medicine (D.O.) in Canyon Country, California, trained at Des Moines University of Osteopathic Medicine and Health Sciences (class of 1993). Their prescriptions cost Medicare Part D more than their services did: $7,543 for 167 claims, against $1,855 paid for services in 2024. Abbott Laboratories was the largest of 2 companies reporting payments in 2024, $43.92 in all, mostly food and beverage.
Overview
| NPI | 1598968844 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | D.O. |
| Sole proprietor | Yes |
| NPI issued | Jun 6, 2007 |
| Last updated in NPPES | Jul 8, 2007 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 2OA6991 | 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 - Internal Medicine (CA) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 14 |
|---|---|
| Services billed | 57 across 19 procedure codes |
| Paid by Medicare | $1,855 |
Part D prescriptions in 2024
| Prescriptions (claims) | 167 · 187 30-day fills |
|---|---|
| Patients | 98 |
| Total drug cost | $7,543 |
| Generic share | 87% of claims |
Education and affiliations
| Medical school | Des Moines University of Osteopathic Medicine and Health Sciences |
|---|---|
| Graduation year | 1993 |
| Medicare specialty | Internal Medicine |
Medical groups
- Lakeside Medical Organization A Medical Group IncWest Hills, CA · 64 clinicians
- Choice Urgent CareVictorville, CA · 12 clinicians
Industry payments (Open Payments)
- 2024$43.92 · 2 payments from 2 companies
Top paying companies in 2024
| Company | Amount | Payments |
|---|---|---|
| Abbott Laboratories | $24.75 | 1 |
| Phadia US Inc. | $19.17 | 1 |
What the 2024 payments were for
- Food and Beverage$43.92 · 2 payments
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 15 internal medicine physicians in Canyon Country · All internal medicine physicians in California