Karen Lai
NPI 1851966543 · Family Medicine Physician · Lake Zurich, IL
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Karen Lai is a Family Medicine Physician provider in Lake Zurich, IL (NPI 1851966543).
Provider details
- NPI number
- 1851966543
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
- License
- 036-176432 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
5 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 8 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 28 | — |
| Levothyroxine Sodium | 26 | — |
| Losartan Potassium | 19 | — |
| Atorvastatin Calcium | 19 | 11 |
| Gabapentin | 19 | — |
| Lisinopril | 16 | — |
| Hydrochlorothiazide | 14 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$22 across 1 record (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (2)
- 14300 Orchard Pkwy Fl 1Westminster, CO 80023-9206Phone: (303) 430-5560
- 242 Washo DrLake Zurich, IL 60047-7902Phone: (847) 997-5646
Registry dates
- Enumerated
- 2021-05-25
- Last updated
- 2025-09-15
- Certified
- 2025-09-15
Frequently asked questions
- What is Karen Lai's NPI number?
- Karen Lai's National Provider Identifier (NPI) is 1851966543, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Karen Lai's specialty?
- Karen Lai is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Karen Lai located?
- Karen Lai's practice location on file with NPPES is 350 Surryse Rd Ste 100, Lake Zurich, IL 60047-3217.
- What is Karen Lai's phone number?
- The practice phone number listed in the NPPES registry for Karen Lai is (847) 438-2144.
- Does Karen Lai accept Medicare?
- Karen Lai is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Karen Lai's NPI active?
- Yes — Karen Lai's NPI (1851966543) is active in the NPPES registry as of the last update on 2025-09-15.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.