Crystal D Cowan, FNP-BC

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

209.034423 Issued in IL

Practice address

1441 Branding Ave Ste 310
Downers Grove, IL 60515-5624

Phone

(630) 829-1038

Fax

(630) 829-1080

NPI assigned

Dec 11, 2008

Sex

Female

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Other identifiers 1

Other names 1

• Ms. Crystal D Tymus Former name

Electronic endpoints 5

Medicare fee-for-service enrollment

Enrolled in WI, IL2 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 2

Specialty

Nurse Practitioner

Education

Other, 2008

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Advocate Health and Hospitals CorporationGroup PAC ID 7810800935, 3,081 clinicians

Prohealth Medical Group IncGroup PAC ID 3476465188, 475 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Waukesha Memorial Hospital Hospital, Waukesha, WI, CCN 520008
• Advocate Good Samaritan Hospital Hospital, Downers Grove, IL, CCN 140288

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: ccowan104539@direct.myadvocateaurora.org

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.

• Prohealth Medical Group Inc.

  • Pediatrics Physician
  • Waukesha, WI
  • NPI 1356322440
  Medicare reassignment Care Compare group NPD
• Advocate Health and Hospitals Corporation

  dba Advocate Medical Group

  • Multi-Specialty Clinic/Center
  • Oak Brook, IL
  • NPI 1700824455
  Medicare reassignment Care Compare group NPD (past)
• Advocate Health and Hospitals Corporation

  dba Advocate Children's Hospital

  • Children's Hospital
  • Oak Lawn, IL
  • NPI 1508315516
  NPD
• Advocate Health and Hospitals Corporation

  dba Advocate Good Samaritan Hospital

  • General Acute Care Hospital
  • Downers Grove, IL
  • NPI 1578670543
  NPD
• Aurora Medical Group, Inc.

  • Certified Registered Nurse Anesthetist
  • Milwaukee, WI
  • NPI 1427271378
  NPD
• Prohealth Medical Group Inc

  • Family Medicine Physician
  • Waukesha, WI
  • NPI 1720371719
  NPD
• Aurora Medical Group, Inc.

  • Durable Medical Equipment & Medical Supplies
  • Manitowoc, WI
  • NPI 1801941075
  NPD (past)

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

• Advocate Health and Hospitals Corporation

  dba Advocate Good Samaritan Hospital

  • General Acute Care Hospital
  • Downers Grove, IL
  • NPI 1578670543
  Care Compare affiliation
• Prohealth Waukesha Memorial Hospital, Inc.

  • General Acute Care Hospital
  • Waukesha, WI
  • NPI 1629056890
  Care Compare affiliation

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

{
    "created_epoch": "1228953600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771459200000",
    "number": "1609011261",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "29373 NETWORK PL",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606731293",
            "telephone_number": "847-390-5900"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1441 BRANDING AVE STE 310",
            "city": "DOWNERS GROVE",
            "state": "IL",
            "postal_code": "605155624",
            "telephone_number": "630-829-1038",
            "fax_number": "630-829-1080"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "709 Spring Valley Rd",
            "address_purpose": "LOCATION",
            "city": "Burlington",
            "state": "WI",
            "postal_code": "531057614",
            "country_code": "US",
            "telephone_number": "262-767-6000",
            "fax_number": "262-767-6000",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "COWAN",
        "first_name": "CRYSTAL",
        "middle_name": "D",
        "name_prefix": "Mrs.",
        "credential": "FNP-BC",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2008-12-11",
        "last_updated": "2026-02-19",
        "certification_date": "2026-02-19",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "364SP0200X",
            "taxonomy_group": "",
            "desc": "Clinical Nurse Specialist, Pediatrics",
            "state": "WI",
            "license": "3599",
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "WI",
            "license": "3599-33",
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "IL",
            "license": "209.034423",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1609011261",
            "state": "WI"
        }
    ],
    "endpoints": [
        {
            "endpointType": "CONNECT",
            "endpointTypeDescription": "CONNECT URL",
            "endpoint": "https://esmd.abilitynetwork.com:8291/Gateway/DocumentSubmission/2_0/NhinService/XDRRequest_Service",
            "affiliation": "Y",
            "endpointDescription": "2.16.840.1.113883.3.667.2",
            "affiliationName": "Ability Network",
            "use": "OTHER",
            "useDescription": "Other",
            "useOtherDescription": "CMS esMD eMDR",
            "contentType": "CSV",
            "contentTypeDescription": "CSV",
            "address_1": "64 S Price Rd Ste B",
            "city": "Brownsville",
            "state": "TX",
            "country_code": "US",
            "postal_code": "785212459",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "709 Spring Valley Rd",
            "city": "Burlington",
            "state": "WI",
            "country_code": "US",
            "postal_code": "531057614",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "ccowan104539@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "709 Spring Valley Rd",
            "city": "Burlington",
            "state": "WI",
            "country_code": "US",
            "postal_code": "531057614",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "DIRECT",
            "endpointTypeDescription": "Direct Messaging Address",
            "endpoint": "ccowan104539@direct.myadvocateaurora.org",
            "affiliation": "N",
            "use": "DIRECT",
            "useDescription": "Direct",
            "address_1": "1441 Branding Ave Ste 310",
            "city": "Downers Grove",
            "state": "IL",
            "country_code": "US",
            "postal_code": "605155624",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://EpicFHIR.aurora.org/FHIR/MYAURORA/api/FHIR/DSTU2/",
            "affiliation": "N",
            "address_1": "1441 Branding Ave Ste 310",
            "city": "Downers Grove",
            "state": "IL",
            "country_code": "US",
            "postal_code": "605155624",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": [
        {
            "first_name": "CRYSTAL",
            "last_name": "TYMUS",
            "middle_name": "D",
            "prefix": "MS.",
            "credential": "FNP-BC",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

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• Nurse Practitioner in Downers Grove, IL
• Providers in Downers Grove, IL by specialty
• Nurse Practitioner in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 19, 2026; 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.