Karen J Mass, MD

Primary specialty

Obstetrics & Gynecology PhysicianTaxonomy code 207V00000X

License

036-093084 Issued in IL

Practice address

840 S Waukegan Rd Ste 208
Lake Forest, IL 60045-2619

Phone

(847) 295-0433

Fax

(847) 234-0034

NPI assigned

Aug 14, 2007

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

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

Specialty

Obstetrics/Gynecology

Education

University of Illinois College of Med (CHI/Peor/Rock/CHM-Urb), 1988

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Practice addresses (Care Compare)

Hospital & facility affiliations

• Northwestern Medicine Central Dupage Hospital Hospital, Winfield, IL, CCN 140242
• Northwestern Lake Forest Hospital Hospital, Lake Forest, IL, CCN 140130
• Northwestern Memorial Hospital Hospital, Chicago, IL, CCN 140281
• Northshore University Healthsystem - Evanston Hospital Hospital, Evanston, IL, CCN 140010

Merit-based Incentive Payment System (MIPS)

Final score

90.01 of 100Reported as individual

Quality

94.22

Improvement activities

40

Cost

74.4

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: karen.mass.1@2494.direct.athenahealth.com
• FHIR API: https://api.platform.athenahealth.com/2494/brand/1/csg/1/fhir/r4

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.

• Womens Specialty Care SC

  • Obstetrics & Gynecology Physician
  • Lake Forest, IL
  • NPI 1477611028
  Medicare reassignment NPD Authorized official

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

• Central Dupage Hospital Association

  • General Acute Care Hospital
  • Winfield, IL
  • NPI 1003864810
  Care Compare affiliation
• Central Dupage Hospital Association

  • Psychiatric Hospital Unit
  • Winfield, IL
  • NPI 1740230895
  Care Compare affiliation
• Endeavor Health Clinical Operations

  • General Acute Care Hospital
  • Evanston, IL
  • NPI 1184670549
  Care Compare affiliation
• Northwestern Lake Forest Hospital

  • General Acute Care Hospital
  • Lake Forest, IL
  • NPI 1124025176
  Care Compare affiliation
• Northwestern Memorial Hospital

  • General Acute Care Hospital
  • Chicago, IL
  • NPI 1497859649
  Care Compare affiliation

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

{
    "created_epoch": "1187049600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1709769600000",
    "number": "1710179759",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "475 MCCORMICK DR",
            "city": "LAKE FOREST",
            "state": "IL",
            "postal_code": "600453349",
            "telephone_number": "847-615-9376",
            "fax_number": "847-615-9377"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "840 S WAUKEGAN RD STE 208",
            "city": "LAKE FOREST",
            "state": "IL",
            "postal_code": "600452619",
            "telephone_number": "847-295-0433",
            "fax_number": "847-234-0034"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MASS",
        "first_name": "KAREN",
        "middle_name": "J",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-08-14",
        "last_updated": "2024-03-07",
        "certification_date": "2022-09-22",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "IL",
            "license": "036-093084",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Amanda Marks, PA-C
• Julia M Marshall, MD
• Katherine McArdle Martinez, MS, OTR/L, CHT
• Richard P. Martino, DDS
• Mass Medical, S.C.
• Mark E Mass, MD
• Kaitlin E Mastalerz, PA-C
• Manu M Mathew, OTD
• Shannon Nicole Maximov, LCSW
• Allison May, AU.D.

• Obstetrics & Gynecology Physician in Lake Forest, IL
• Providers in Lake Forest, IL by specialty
• Obstetrics & Gynecology Physician in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 7, 2024; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.