Individual provider Active NPI

Mark Blitstein, M.D.

  • Specialist
  • Lake Forest, IL
National Provider Identifier
1922086560
Registry record updated Jul 13, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
SpecialistTaxonomy code 174400000X
Practice address
800 N Westmoreland Rd
Suite 102
Lake Forest, IL 60045-1673
Phone
(847) 295-1300
Fax
(847) 295-1574
NPI assigned
Jan 4, 2006
Last updated
Jul 13, 2026By the provider in NPPES
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 13, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Specialist 174400000X IL Primary

Addresses

Primary practice location

800 N Westmoreland Rd
Suite 102
Lake Forest, IL 60045-1673

Mailing address

800 N Westmoreland Rd
Suite 102
Lake Forest, IL 60045-1673
Phone (847) 295-1300

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Not listed in the public Medicare enrollment file

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
036054922ILMDSpecialist

Practice roles

OrganizationSpecialtyStatusNew patients
Lake Forest Endoscopy Center LLC PastSince Jul 12, 2012 Accepting new patients

Organizations & group practices 1

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

NPI Registry JSON

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

{
    "created_epoch": "1136332800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783900800000",
    "number": "1922086560",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "800 N WESTMORELAND RD",
            "address_2": "SUITE 102",
            "city": "LAKE FOREST",
            "state": "IL",
            "postal_code": "600451673",
            "telephone_number": "847-295-1300",
            "fax_number": "847-295-1574"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "800 N WESTMORELAND RD",
            "address_2": "SUITE 102",
            "city": "LAKE FOREST",
            "state": "IL",
            "postal_code": "600451673",
            "telephone_number": "847-295-1300",
            "fax_number": "847-295-1574"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BLITSTEIN",
        "first_name": "MARK",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-01-04",
        "last_updated": "2026-07-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "174400000X",
            "taxonomy_group": "",
            "desc": "Specialist",
            "state": "IL",
            "license": null,
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Lake Forest, IL

Sources for this page

  • NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 13, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
  • National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.