Kheng Joe Lau, M.D.
NPI 1144673856ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Flossmoor, IL
Internal Medicine, Endocrinology, Diabetes & Metabolism (M.D.) with St. Croix Regional Medical Center and 2 other groups, practicing in Flossmoor, Illinois. Their prescriptions cost Medicare Part D more than their services did: $1,225,638 for 2,339 claims, against $516.15 paid for services in 2024. Novo Nordisk Inc was the largest of 7 companies reporting payments in 2025, $2,591 in all, mostly consulting fees. Lists Allina United Hospital and 4 other hospitals as hospital affiliations.
Overview
| NPI | 1144673856 |
|---|---|
| Status | Active |
| Entity type | Individual |
| Credential | M.D. |
| Sole proprietor | No |
| NPI issued | Jul 18, 2016 |
| Last updated in NPPES | Oct 8, 2026 |
| Certified by provider | Oct 8, 2026 |
Specialties and licenses
| Taxonomy | Code | License | State |
|---|---|---|---|
| Internal Medicine, Endocrinology, Diabetes & Metabolism Primary | 207RE0101X | 036181509 | IL |
| Internal Medicine | 207R00000X | 125.069276 | 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 (WI) |
|---|---|
| Accepts assignment | Yes (participating) |
Medicare services in 2024
| Medicare patients | 20 |
|---|---|
| Services billed | 24 across 3 procedure codes |
| Paid by Medicare | $516.15 |
Part D prescriptions in 2024
| Prescriptions (claims) | 2,339 · 4,078 30-day fills |
|---|---|
| Patients | 303 |
| Total drug cost | $1,225,638 |
| Generic share | 30% of claims |
Education and affiliations
| Graduation year | 2015 |
|---|---|
| Medicare specialty | Internal Medicine |
| Secondary specialties | Endocrinology |
Medical groups
- St. Croix Regional Medical CenterLindstrom, MN · 131 clinicians
- Baldwin Area Medical Center IncBaldwin, WI · 89 clinicians
- Hudson Physicians SCHudson, WI · 67 clinicians
Hospital affiliations
- Allina United HospitalSaint Paul, MN
- Hudson HospitalHudson, WI
- Ladd Memorial HospitalOsceola, WI
- St Croix Regional Medical CenterSaint Croix Falls, WI
- Western Wisconsin HealthBaldwin, WI
Industry payments (Open Payments)
- 2025$2,591 · 27 payments from 7 companies
- 2024$1,184 · 16 payments from 6 companies
Top paying companies in 2025
| Company | Amount | Payments |
|---|---|---|
| Novo Nordisk Inc | $2,270 | 14 |
| Medtronic, Inc. | $85.83 | 3 |
| Corcept Therapeutics | $85.79 | 3 |
| Mannkind Corporation | $64.48 | 2 |
| Tandem Diabetes Care, Inc. | $42.94 | 3 |
What the 2025 payments were for
- Consulting Fee$2,130 · 2 payments
- Food and Beverage$418.71 · 24 payments
- Education$42.50 · 1 payment
Receiving payments does not imply wrongdoing. What Open Payments covers ·original records
Other endocrinologists in Flossmoor
- 1669486262
- 1952301293