Quick answers
- Does Kaihua K. Lai accept Medicare assignment?
- Yes. Medicare's clinician data says Kaihua K. Lai accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Kaihua K. Lai see?
- In 2024, CMS data shows 269 Original Medicare patients and 3,132 services for Kaihua K. Lai. This counts Original Medicare only and measures volume, not quality.
- What is Kaihua K. Lai's NPI number?
- 1689649659. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Kaihua K. Lai, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 269 |
|---|---|
| Services billed to Medicare | 3,132 |
| Different services or procedures | 87 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)354 services
- Insertion of needle into vein for collection of blood sample (36415)325 services
- Chronic care management services, first 20 minutes of clinical staff time directed by health care professional, per calendar month (99490)137 services
- Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (G0439)134 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)120 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High blood pressure75%
- High cholesterol71%
- Arthritis48%
- Chronic kidney disease36%
- Diabetes34%
- Ischemic heart disease30%
Hospitals where Kaihua K. Lai works
Medicare's Facility Affiliation Data lists Kaihua K. Lai at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Northwestern Medicine Central Dupage HospitalWinfield, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140242
- Palos Community HospitalPalos Heights, IL · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 140062
- Silver Cross Hospital and Medical CentersNew Lenox, IL · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 140213
Practice locations
Addresses where Kaihua K. Lai is enrolled with Medicare (CMS data updated October 2, 2026).
- 101 E 75th St, Suite 105Naperville, IL 60565 (630) 933‑1700
- 1900 Silver Cross BlvdNew Lenox, IL 60451 (815) 300‑7106
- 7425 Janes AveWoodridge, IL 60517 (815) 300‑7764
Group practices
Medicare enrollment lists Kaihua K. Lai as a member of these groups (CMS data updated October 2, 2026).
- Central Dupage Physician Group1,080 clinicians in the group
- Premier Suburban Medical Group, PLLC29 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Naperville
Clinicians with the same Medicare primary specialty in Naperville, IL — not a recommendation.
Other clinicians in Central Dupage Physician Group
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 1985 (41 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1689649659 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians