Nadarajan Janakan, M.D.
NPI 1134128812ActiveIndividual· Internal Medicine· Troy, MI
Internal Medicine (M.D.) in Troy, Michigan, licensed in MI, with an NPI issued in July 2005. Their prescriptions cost Medicare Part D more than their services did: $1,464,593 for 12,039 claims, against $138,141 paid for services in 2024. Glaxosmithkline, LLC. reported $16.43 in payments in 2025, mostly food and beverage. Lists Beaumont Hospital - Dearborn and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1134128812 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 15, 2005 |
| Last updated in NPPES | Apr 2, 2008 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 4301072199 | MI |
| Hospitalist | 208M00000X | 4301072199 | MI |
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 (MI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 219 |
|---|---|
| Services billed | 2,472 across 22 procedure codes |
| Paid by Medicare | $138,141 |
Part D prescriptions in 2024
| Prescriptions (claims) | 12,039 · 27,568 30-day fills |
|---|---|
| Patients | 524 |
| Total drug cost | $1,464,593 |
| Generic share | 86% of claims |
Education and affiliations
| Graduation year | 1991 |
|---|---|
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Hospital affiliations
- Beaumont Hospital - DearbornDearborn, MI
- Beaumont Hospital - TaylorTaylor, MI
- Beaumont Hospital Royal OakRoyal Oak, MI
- Corewell Health Trenton HospitalTrenton, MI
- Corewell Health Wayne HospitalWayne, MI
Other facilities
- Beaumont Home HealthHome health agency · Troy, MI
- Vn Home Health CareHome health agency · Farmington, MI
Industry payments (Open Payments)
- 2025$16.43 · 1 payment from 1 company
- 2024$48.89 · 3 payments from 2 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Glaxosmithkline, LLC. | $16.43 | 1 |
What the 2025 payments were for
- Food and Beverage$16.43 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 171 internal medicine physicians in Troy · All internal medicine physicians in Michigan