Navneet Singh, M.D.
NPI 1194783217ActiveIndividual· Internal Medicine· Olympia Fields, IL
Internal Medicine (M.D.) with Advocate Health and Hospitals Corporation and 1 other group, practicing in Olympia Fields, Illinois. Their prescriptions cost Medicare Part D more than their services did: $822,676 for 12,384 claims, against $67,864 paid for services in 2024. Lilly USA, LLC was the largest of 10 companies reporting payments in 2025, $626.86 in all, mostly food and beverage. Lists Advocate Christ Hospital & Medical Center and 1 other hospital as hospital affiliations.
Overview
| NPI | 1194783217 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 1, 2006 |
| Last updated in NPPES | Dec 20, 2021 |
| Certified by provider | Dec 20, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036083500 | IL |
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 (IL) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 288 |
|---|---|
| Services billed | 1,335 across 49 procedure codes |
| Paid by Medicare | $67,864 |
Part D prescriptions in 2024
| Prescriptions (claims) | 12,384 · 23,345 30-day fills |
|---|---|
| Patients | 1,011 |
| Total drug cost | $822,676 |
| Generic share | 88% of claims |
Education and affiliations
| Graduation year | 1984 |
|---|---|
| Medicare specialty | Internal Medicine |
Medical groups
- Advocate Health and Hospitals CorporationChicago, IL · 3,118 clinicians
- Aamg Reach PLLCKenosha, WI · 51 clinicians
Hospital affiliations
- Advocate Christ Hospital & Medical CenterOak Lawn, IL
- Advocate Trinity HospitalChicago, IL
Other facilities
- Advocate Home Health Care ServHome health agency · Oakbrook, IL
Industry payments (Open Payments)
- 2025$626.86 · 38 payments from 10 companies
- 2024$312.75 · 16 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Lilly USA, LLC | $211.89 | 16 |
| Novo Nordisk Inc | $164.01 | 10 |
| Abbvie Inc. | $66.11 | 4 |
| Radius Health, Inc. | $45.25 | 2 |
| Ardelyx, Inc. | $29.98 | 1 |
What the 2025 payments were for
- Food and Beverage$581.86 · 37 payments
- Education$45.00 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 28 internal medicine physicians in Olympia Fields · All internal medicine physicians in Illinois