Individual provider Active NPI

Lillian Jane Montgomery, DO

  • Hospitalist Physician
  • Arlington Heights, IL
National Provider Identifier
1255893871
Registry record updated May 11, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
036165421 Issued in IL
Practice address
800 W Central Rd
Arlington Heights, IL 60005-2349
Phone
(847) 618-8400
NPI assigned
Apr 2, 2019
Last updated
May 11, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on May 11, 2026

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Obstetrics & Gynecology Physician 207V00000X 036165421 IL
Hospitalist Physician 208M00000X 036165421 IL Primary

Addresses

Primary practice location

800 W Central Rd
Arlington Heights, IL 60005-2349

Mailing address

2650 Ridge Ave Ste 1223
Evanston, IL 60201-1700
Phone (847) 570-2040

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
I20231010000507 IL Practitioner - HospitalistPractitioner - Obstetrics/Gynecology 2466807532 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
HospitalistAlso: Obstetrics/Gynecology
Education
Other, 2019
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Women First Specialists SCGroup PAC ID 3971520909, 3 clinicians

Practice addresses (Care Compare)

6121 N Elston Ave
Chicago, IL 60646-4708
Phone (773) 792-0209

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
036165421ILMDObstetrics & Gynecology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Presence Healthcare Services CurrentSince Aug 1, 2025 Accepting new patients
Women First Specialists, S.C. Obstetrics & Gynecology CurrentSince Aug 14, 2023 Accepting new patients
Presence Healthcare Services CurrentSince Aug 1, 2025 Accepting new patients

Locations

2845 N Sheridan Rd
Ste 712
Chicago, IL 60657
Phone (773) 525-0000

2900 N Lakeshore
Chicago, IL 60657
Phone (773) 665-3240

331 W Surf St
Ste 712
Chicago, IL 60657

6121 N Elston Ave
Chicago, IL 60646
Phone (773) 792-0209

62311 Collection Ctr Dr
Chicago, IL 60693

Interoperability endpoints

  • FHIR API: https://fhir4.healow.com/fhir/r4/BBCAED/Endpoint/BBCAED

Organizations & group practices 4

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.

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": "1554163200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1778457600000",
    "number": "1255893871",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2650 RIDGE AVE STE 1223",
            "city": "EVANSTON",
            "state": "IL",
            "postal_code": "602011700",
            "telephone_number": "847-570-2040"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "800 W CENTRAL RD",
            "city": "ARLINGTON HEIGHTS",
            "state": "IL",
            "postal_code": "600052349",
            "telephone_number": "847-618-8400"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MONTGOMERY",
        "first_name": "LILLIAN",
        "middle_name": "JANE",
        "credential": "DO",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2019-04-02",
        "last_updated": "2026-05-11",
        "certification_date": "2026-05-11",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207V00000X",
            "taxonomy_group": "",
            "desc": "Obstetrics & Gynecology",
            "state": "IL",
            "license": "036165421",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "IL",
            "license": "036165421",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Arlington Heights, IL

Sources for this page

Verify at the official NPI Registry.