Individual provider Active NPI

Karen W Lai

  • Family Medicine Physician
  • Lake Zurich, IL
National Provider Identifier
1851966543
Registry record updated Sep 15, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
036-176432 Issued in IL
Practice address
350 Surryse Rd Ste 100
Lake Zurich, IL 60047-3217
Phone
(847) 438-2144
Fax
(847) 438-4654
NPI assigned
May 25, 2021
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 15, 2025

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X 036-176432 IL Primary
Family Medicine Physician 207Q00000X DR.0072025 CO

Addresses

Primary practice location

350 Surryse Rd Ste 100
Lake Zurich, IL 60047-3217

Mailing address

29373 Network PL
Chicago, IL 60673-1293
Phone (847) 390-5900

Other practice location 1

14300 Orchard Pkwy Fl 1
Westminster, CO 80023-9206
Phone (303) 430-5560

Other practice location 2

242 Washo Dr
Lake Zurich, IL 60047-7902
Phone (847) 997-5646

Electronic endpoints 2

TypeEndpointUseAffiliation
FHIR URL https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/
Direct Messaging Address klai434912@direct.myadvocateaurora.org Direct

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL
Eligible to order & refer
  • Part B services: Yes
  • Medical equipment: Yes
  • Home health: Yes
  • Power mobility devices: Yes
  • Hospice: Yes
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20250909004318 IL Practitioner - Family Practice 6305227950 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Family Practice
Education
Other, 2022
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Advocate Health and Hospitals CorporationGroup PAC ID 7810800935, 3,081 clinicians

Practice addresses (Care Compare)

214 McHenry Rd
Buffalo Grove, IL 60089-6748
Phone (847) 459-1160

Hospital & facility affiliations

  • Advocate Good Shepherd Hospital Hospital, Barrington, IL, CCN 140291

Merit-based Incentive Payment System (MIPS)

Final score
89.06 of 100Reported as group
Quality
89.53
Promoting interoperability
100
Improvement activities
40
Cost
74

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Osteopathy

State licenses

LicenseStateTypeSpecialty
DR.0072025COMDFamily Medicine Physician
036-176432ILMDFamily Medicine Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Advocate Health and Hospitals Corporation CurrentSince Aug 5, 2025 Accepting new patients
Advocate Health and Hospitals Corporation CurrentSince Aug 5, 2025 Accepting new patients

Locations

214 McHenry Rd
Buffalo Grove, IL 60089
Phone (847) 459-1160

29373 Network Pl
Chicago, IL 60673

350 Surryse Rd
Ste 100
Lake Zurich, IL 60047
Phone (847) 438-2144

Organizations & group practices 2

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 1

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1621900800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757894400000",
    "number": "1851966543",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "29373 NETWORK PL",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606731293",
            "telephone_number": "847-390-5900"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "350 SURRYSE RD STE 100",
            "city": "LAKE ZURICH",
            "state": "IL",
            "postal_code": "600473217",
            "telephone_number": "847-438-2144",
            "fax_number": "847-438-4654"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "14300 Orchard Pkwy Fl 1",
            "address_purpose": "LOCATION",
            "city": "Westminster",
            "state": "CO",
            "postal_code": "800239206",
            "country_code": "US",
            "telephone_number": "303-430-5560",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "242 Washo Dr",
            "address_purpose": "LOCATION",
            "city": "Lake Zurich",
            "state": "IL",
            "postal_code": "600477902",
            "country_code": "US",
            "telephone_number": "847-997-5646",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "LAI",
        "first_name": "KAREN",
        "middle_name": "W",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2021-05-25",
        "last_updated": "2025-09-15",
        "certification_date": "2025-09-15",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "IL",
            "license": "036-176432",
            "primary": true
        },
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "CO",
            "license": "DR.0072025",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "350 Surryse Rd Ste 100",
            "city": "Lake Zurich",
            "state": "IL",
            "country_code": "US",
            "postal_code": "600473217",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "klai434912@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "350 Surryse Rd Ste 100",
            "city": "Lake Zurich",
            "state": "IL",
            "country_code": "US",
            "postal_code": "600473217",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Lake Zurich, IL

Sources for this page

Verify at the official NPI Registry.