Andrew S. Krock, M.D.
NPI 1881631919ActiveIndividual· Internal Medicine· Rolling Meadows, IL
Internal Medicine (M.D.) in Rolling Meadows, Illinois, trained at Northwestern University Feinberg Medical School (class of 1984). Their prescriptions cost Medicare Part D more than their services did: $818,532 for 12,190 claims, against $274,024 paid for services in 2024.
Overview
| NPI | 1881631919 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | May 31, 2006 |
| Last updated in NPPES | Apr 30, 2021 |
| Certified by provider | Apr 30, 2021 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine Primary | 207R00000X | 036079839 | 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 | 909 |
|---|---|
| Services billed | 3,462 across 38 procedure codes |
| Paid by Medicare | $274,024 |
Part D prescriptions in 2024
| Prescriptions (claims) | 12,190 · 31,927 30-day fills |
|---|---|
| Patients | 1,121 |
| Total drug cost | $818,532 |
| Generic share | 91% of claims |
Education and affiliations
| Medical school | Northwestern University Feinberg Medical School |
|---|---|
| Graduation year | 1984 |
| Medicare specialty | Internal Medicine |
| Telehealth | Offers telehealth |
Medical group
- Endeavor Health Medical GroupEvanston, IL · 3,350 clinicians
Hospital affiliations
- Loyola University Medical CenterMaywood, IL
- Northwest Community Hospital 1Arlington Heights, IL
Other facilities
- Residential Home HealthHome health agency · Schaumburg, IL
Industry payments (Open Payments)
None reported for 2025 or 2024.
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
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All 23 internal medicine physicians in Rolling Meadows · All internal medicine physicians in Illinois