NPIMap

Individual provider Active NPI

Julia L Bielat, M.D.

  • Family Medicine Physician
  • Aurora, IL
National Provider Identifier
1477689081
Registry record updated Jul 9, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Family Medicine PhysicianTaxonomy code 207Q00000X
License
036108044 Issued in IL
Practice address
2635 Church Rd Ste 201
Aurora, IL 60502-8943
Phone
(630) 315-8700
Fax
(630) 315-8777
NPI assigned
Feb 26, 2007
Last updated
Jul 9, 2026By the provider in NPPES
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 9, 2026

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Family Medicine Physician 207Q00000X 036108044 IL Primary

Addresses

Primary practice location

2635 Church Rd Ste 201
Aurora, IL 60502-8943

Mailing address

2635 Church Rd Ste 201
Aurora, IL 60502-8943
Phone (630) 315-8700

Other practice location 1

302 Randall Rd Ste 306
Geneva, IL 60134-4205
Phone (630) 938-8930

Other identifiers 4

IdentifierTypeStateIssuer
036108044MedicaidIL
920540OtherILMEDICARE PTAN (GROUP)
920540021OtherILMEDICARE PTAN (INDIVIDUAL)
P01137348OtherILRAILROAD MEDICARE (PROVIDER PTAN)

Other names 1

  • Julia L Castillo Former name

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IL
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 1

Enrollment IDStateProvider typePAC IDDetails
I20040921001104 IL Practitioner - Family Practice 3173591757 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Family Practice
Education
University of Illinois College of Med (CHI/Peor/Rock/CHM-Urb), 1999
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Central Dupage Physician GroupGroup PAC ID 5890696231, 1,087 clinicians

Practice addresses (Care Compare)

2635 Church Rd
Suite 201
Aurora, IL 60502-8943
Phone (630) 315-8700

Hospital & facility affiliations

Merit-based Incentive Payment System (MIPS)

Final score
95.63 of 100Reported as apm
Quality
88.47
Promoting interoperability
100
Improvement activities
40

National Provider Directory

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

Practice roles

OrganizationSpecialtyStatusNew patients
Central Dupage Hospital Association CurrentSince May 30, 2012 Accepting new patients
Central Dupage Physician Group Family Medicine CurrentSince Jan 21, 2012 Accepting new patients
Winfield Pathology Consultants, S.C. Current Accepting new patients
Central Dupage Hospital Association CurrentSince May 30, 2012 Accepting new patients
Central Dupage Physician Group CurrentSince Jan 21, 2012 Accepting new patients
Gibson Community Hospital Association Past Accepting new patients
Resurrection Services Family Medicine Past Accepting new patients
Northwest Community Hospital Past Accepting new patients

Locations

2635 Church Rd
Ste 201
Aurora, IL 60502
Phone (630) 315-8700

2800 Beverly Dr
Aurora, IL 60502
Phone (630) 315-8700

Carol Stream, IL 60122
Phone (630) 933-3300

Dept 5777
Carol Stream, IL 60122

302 Randall Rd
Ste 306
Geneva, IL 60134
Phone (630) 377-1368

1800 N Main St
Wheaton, IL 60187
Phone (630) 469-0045

25 N Winfield Rd
Winfield, IL 60190
Phone (630) 682-1600

Organizations & group practices 8

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 6

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": "1172448000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1783555200000",
    "number": "1477689081",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2635 CHURCH RD STE 201",
            "city": "AURORA",
            "state": "IL",
            "postal_code": "605028943",
            "telephone_number": "630-315-8700",
            "fax_number": "630-315-8777"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2635 CHURCH RD STE 201",
            "city": "AURORA",
            "state": "IL",
            "postal_code": "605028943",
            "telephone_number": "630-315-8700",
            "fax_number": "630-315-8777"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "302 Randall Rd Ste 306",
            "address_purpose": "LOCATION",
            "city": "Geneva",
            "state": "IL",
            "postal_code": "601344205",
            "country_code": "US",
            "telephone_number": "630-938-8930",
            "fax_number": "630-938-8931",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "BIELAT",
        "first_name": "JULIA",
        "middle_name": "L",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2007-02-26",
        "last_updated": "2026-07-09",
        "certification_date": "2026-07-09",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207Q00000X",
            "taxonomy_group": "",
            "desc": "Family Medicine",
            "state": "IL",
            "license": "036108044",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "036108044",
            "state": "IL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE PTAN (GROUP)",
            "identifier": "920540",
            "state": "IL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "MEDICARE PTAN (INDIVIDUAL)",
            "identifier": "920540021",
            "state": "IL"
        },
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "RAILROAD MEDICARE (PROVIDER PTAN)",
            "identifier": "P01137348",
            "state": "IL"
        }
    ],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "JULIA",
            "last_name": "CASTILLO",
            "middle_name": "L",
            "credential": "M.D.",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

Other providers in Aurora, IL

Sources for this page

Verify at the official NPI Registry.