Individual provider Active NPI

Ava Mastny, M.D.

  • Hospitalist Physician
  • Long Grove, IL
National Provider Identifier
1164868691
Registry record updated Jun 17, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hospitalist PhysicianTaxonomy code 208M00000X
License
036139860 Issued in IL
Practice address
3880 Salem Lake Dr
F
Long Grove, IL 60047-5292
Phone
(847) 719-2220
Fax
(847) 719-2265
NPI assigned
May 10, 2013
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jun 17, 2025

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

Specialties & licenses 2

Specialty (taxonomy)CodeLicenseStatePrimary
Internal Medicine Physician 207R00000X 036139860 IL
Hospitalist Physician 208M00000X 036139860 IL Primary

Addresses

Primary practice location

3880 Salem Lake Dr
F
Long Grove, IL 60047-5292

Mailing address

3880 Salem Lake Dr
F
Long Grove, IL 60047-5292
Phone (847) 719-2220

Other identifiers 1

IdentifierTypeStateIssuer
1164868691MedicaidIL

Electronic endpoints 2

TypeEndpointUseAffiliation
Direct Messaging Address amastny234437@direct.myadvocateaurora.org Direct
FHIR URL https://EpicFHIR.aurora.org/FHIR/MYAURORA/apiFHIR/DSTU2/

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
I20160613000713 IL Practitioner - Internal Medicine 8325338874 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Internal Medicine
Education
Other, 2012
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
United Elite Hospitalists LLCGroup PAC ID 6204075112, 25 clinicians

Practice addresses (Care Compare)

12632 S Harlem Ave
Palos Heights, IL 60463-1428
Phone (708) 587-0000

450 W Hwy 22
Barrington, IL 60010-1919
Phone (847) 381-9600

801 S Milwaukee Ave
Libertyville, IL 60048-3204
Phone (847) 362-2900

Hospital & facility affiliations

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
036139860ILMDHospitalist Physician

Practice roles

OrganizationSpecialtyStatusNew patients
United Elite Hospitalists, LLC CurrentSince Sep 1, 2024 Accepting new patients
Best Practices Inpatient Care,LTD Internal Medicine CurrentSince Jul 1, 2016 Accepting new patients
Advance Inpatient Medicine LLC Hospitalist CurrentSince Jan 1, 2023 Accepting new patients
Dr. Almasri and Associates Inc. CurrentSince Sep 1, 2024 Accepting new patients
Best Practices Inpatient Care, LTD. Internal Medicine CurrentSince Jul 1, 2016 Accepting new patients

Locations

800 W Central Rd
Arlington Hts, IL 60005
Phone (847) 618-6150

106 Barrington Commons Ct
Unit 1790
Barrington, IL 60011
Phone (847) 719-2220

500 Remington Blvd
Bolingbrook, IL 60440
Phone (630) 312-5000

17800 Kedzie Ave
Hazel Crest, IL 60429
Phone (708) 213-4200

3880 Salem Lake Dr
#F
Long Grove, IL 60047
Phone (847) 235-3072

3880 Salem Lake Dr
Ste F
Long Grove, IL 60047
Phone (847) 719-2220

120 N Oak St
Oak Brook Mall, IL 60521
Phone (630) 856-6700

12632 S Harlem Ave
Palos Heights, IL 60463
Phone (708) 587-0000

1131 W Jefferson St
Shorewood, IL 60404

450 W State Route 22
South Barrington, IL 60010
Phone (847) 381-0123

Interoperability endpoints

  • Direct secure messaging: amastny234437@direct.myadvocateaurora.org

Organizations & group practices 5

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.

Hospital & facility affiliations 3

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": "1368144000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750118400000",
    "number": "1164868691",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3880 SALEM LAKE DR",
            "address_2": "F",
            "city": "LONG GROVE",
            "state": "IL",
            "postal_code": "600475292",
            "telephone_number": "847-719-2220",
            "fax_number": "847-719-2265"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3880 SALEM LAKE DR",
            "address_2": "F",
            "city": "LONG GROVE",
            "state": "IL",
            "postal_code": "600475292",
            "telephone_number": "847-719-2220",
            "fax_number": "847-719-2265"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MASTNY",
        "first_name": "AVA",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2013-05-10",
        "last_updated": "2025-06-17",
        "certification_date": "2025-06-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "IL",
            "license": "036139860",
            "primary": false
        },
        {
            "code": "208M00000X",
            "taxonomy_group": "",
            "desc": "Hospitalist",
            "state": "IL",
            "license": "036139860",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1164868691",
            "state": "IL"
        }
    ],
    "endpoints": [
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "amastny234437@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "3880 Salem Lake Dr",
            "address_2": "F",
            "city": "Long Grove",
            "state": "IL",
            "country_code": "US",
            "postal_code": "600475292",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/apiFHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "3880 Salem Lake Dr",
            "address_2": "F",
            "city": "Long Grove",
            "state": "IL",
            "country_code": "US",
            "postal_code": "600475292",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

Other providers in Long Grove, IL

Sources for this page

Verify at the official NPI Registry.