Karen W Lai, - Medicare Family Medicine in Lake Zurich, IL

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Karen W Lai, is a medicare enrolled "Family Medicine" physician in Lake Zurich, Illinois. Her current practice location is 350 Surryse Rd Ste 100, Lake Zurich, Illinois. You can reach out to her office (for appointments etc.) via phone at (847) 438-2144.

Karen W Lai is licensed to practice in Illinois (license number 036-176432) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1851966543.

Contact Information

Karen W Lai,
350 Surryse Rd Ste 100,
Lake Zurich, IL 60047-3217
(847) 438-2144
(847) 438-4654

Map and Direction




Physician's Profile

Full NameKaren W Lai
GenderFemale
SpecialityFamily Medicine
Location350 Surryse Rd Ste 100, Lake Zurich, Illinois
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1851966543
  • Provider Enumeration Date: 05/25/2021
  • Last Update Date: 09/15/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 6305227950
  • Enrollment ID: I20240202000537

Medical Identifiers

Medical identifiers for Karen W Lai such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1851966543NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207Q00000XFamily Medicine 036-176432 (Illinois)Primary
207Q00000XFamily Medicine DR.0072025 (Colorado)Secondary

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Karen W Lai allows following entities to bill medicare on her behalf.
Entity NameCatholic Health Initiatives Colorado
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1356783351
PECOS PAC ID: 8022927342
Enrollment ID: O20031215000462

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Karen W Lai is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Karen W Lai,
29373 Network Pl,
Chicago, IL 60673-1293

Ph: (847) 390-5900		Karen W Lai,
350 Surryse Rd Ste 100,
Lake Zurich, IL 60047-3217

Ph: (847) 438-2144

Reviews and Comments


Family Medicine Doctors in Lake Zurich, IL

Alison J Drumm, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 350 Surryse Rd, Lake Zurich, IL 60047
Phone: 847-438-2144    Fax: 847-438-1597
Raymond Samuel Bianchi, M.D.
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 290 N Rand Rd, Suite A, Lake Zurich, IL 60047
Phone: 847-438-4028    
Dr. Tiffany Nicole Holland, M.D.
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 350 Surryse Rd Ste 100, Lake Zurich, IL 60047
Phone: 847-438-2144    
John W Kolb, MD
Family Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 350 Surryse Rd, Suite 100, Lake Zurich, IL 60047
Phone: 847-438-2144    Fax: 847-438-1597
Robby Edo, DO
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 350 Surryse Rd Ste 100, Lake Zurich, IL 60047
Phone: 847-438-2144    
Shad S Ahmad, MD
Family Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 350 Surryse Rd, Suite 100, Lake Zurich, IL 60047
Phone: 847-438-2144    Fax: 847-438-1597
Somiya Haider, MD
Family Medicine
Medicare: Medicare Enrolled
Practice Location: 350 Surryse Rd Ste 100, Lake Zurich, IL 60047
Phone: 847-438-2144    Fax: 847-438-4654

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.