Dr Karen J Mass, MD - Medicare Obstetrics/gynecology in Lake Forest, IL

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Dr Karen J Mass, MD is a medicare enrolled "Obstetrics & Gynecology" physician in Lake Forest, Illinois. She went to University Of Illinois College Of Med (chi/peor/rock/chm-urb) and graduated in 1988 and has 36 years of diverse experience with area of expertise as Obstetrics/gynecology. Her current practice location is 840 S Waukegan Rd Ste 208, Lake Forest, Illinois. You can reach out to her office (for appointments etc.) via phone at (847) 295-0433.

Dr Karen J Mass is licensed to practice in Illinois (license number 036-093084) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1710179759.

Contact Information

Dr Karen J Mass, MD
840 S Waukegan Rd Ste 208,
Lake Forest, IL 60045-2619
(847) 295-0433
(847) 234-0034

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Physician's Profile

Full NameDr Karen J Mass
GenderFemale
SpecialityObstetrics/gynecology
Experience36 Years
Location840 S Waukegan Rd Ste 208, Lake Forest, Illinois
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Karen J Mass attended and graduated from University Of Illinois College Of Med (chi/peor/rock/chm-urb) in 1988
  NPI Data:
  • NPI Number: 1710179759
  • Provider Enumeration Date: 08/14/2007
  • Last Update Date: 03/07/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 6507897287
  • Enrollment ID: I20050824000196

Medical Identifiers

Medical identifiers for Dr Karen J Mass such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1710179759NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 036-093084 (Illinois)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Central Dupage HospitalWinfield, ILHospital
Northwestern Lake Forest HospitalLake forest, ILHospital

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. Dr Karen J Mass allows following entities to bill medicare on her behalf.
Entity NameWomens Specialty Care Sc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477611028
PECOS PAC ID: 6608807383
Enrollment ID: O20050823000126

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. Dr Karen J Mass 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
Dr Karen J Mass, MD
475 Mccormick Dr,
Lake Forest, IL 60045-3349

Ph: (847) 615-9376		Dr Karen J Mass, MD
840 S Waukegan Rd Ste 208,
Lake Forest, IL 60045-2619

Ph: (847) 295-0433

Reviews and Comments


Obstetrics & Gynecology Doctors in Lake Forest, IL

Tanner L Colegrove, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 900 N Westmoreland Rd, Suite # 207, Lake Forest, IL 60045
Phone: 847-234-9110    Fax: 847-234-0900
Dr. Heather B Heiberger, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 959 S Waukegan Rd, Floor 2, Lake Forest, IL 60045
Phone: 847-234-3250    Fax: 847-234-8155
Dr. Rebecca E Jacobson, MD
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 900 N Westmoreland Rd, Ste 228, Lake Forest, IL 60045
Phone: 847-234-3860    Fax: 847-234-3981
Dr. Tanya A Huang, M.D.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 959 S Waukegan Rd, Floor 2, Lake Forest, IL 60045
Phone: 847-234-3250    Fax: 847-234-8155
Dr. Theresa Lindsay Rose, D.O.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 900 N Westmoreland Rd Ste 112, Lake Forest, IL 60045
Phone: 847-535-7057    Fax: 847-615-2260
Dr. Joseph Matthew Purpura, M.D.
Obstetrics & Gynecology
Medicare: Not Enrolled in Medicare
Practice Location: 660 N Westmoreland Rd, Suite 303, Lake Forest, IL 60045
Phone: 847-234-4595    Fax: 847-234-4597
Sushma Surapaneni Anand, D.O.
Obstetrics & Gynecology
Medicare: Accepting Medicare Assignments
Practice Location: 660 N Westmoreland Rd, Suite 302, Lake Forest, IL 60045
Phone: 847-926-0106    

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.

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