Regina M Stilling, CNP

Primary specialty

Family Nurse PractitionerTaxonomy code 363LF0000X

License

209009570 Issued in IL

Practice address

333 Commerce Dr
Crystal Lake, IL 60014-3539

Phone

(779) 356-4095

NPI assigned

May 30, 2012

Last updated

Sep 20, 2026By the provider in NPPES

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

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: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2011

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Reasons Health, PLLCGroup PAC ID 7618314378, 5 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Northwestern Medicine Central Dupage Hospital Hospital, Winfield, IL, CCN 140242
• Northwestern Medicine McHenry Hospital, McHenry, IL, CCN 140116
• Northwestern Lake Forest Hospital Hospital, Lake Forest, IL, CCN 140130

Merit-based Incentive Payment System (MIPS)

Final score

95.19 of 100Reported as apm

Quality

83.05

Promoting interoperability

100

Improvement activities

40

Merit-based Incentive Payment System (MIPS)

Final score

95.63 of 100Reported as apm

Quality

88.47

Promoting interoperability

100

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Certified Nurse Practitioner, Nurse Practitioner

State licenses

Practice roles

Locations

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.

• Reasons Health, PLLC

  • Social Worker
  • Crystal Lake, IL
  • NPI 1174387195

  Family

  Medicare reassignment Care Compare group NPD
• Central Dupage Physician Group

  dba Northwestern Medicine Regional Medical Group

  • Family Medicine Physician
  • Carol Stream, IL
  • NPI 1033149844
  NPD
• Central Dupage Physician Group

  dba Northwestern Medicine Regional Medical Group

  • Orthopaedic Surgery Physician
  • Geneva, IL
  • NPI 1780012344
  NPD
• Northwestern Medical Faculty Foundation

  dba Northwestern Medical Group

  • Multi-Specialty Clinic/Center
  • Carol Stream, IL
  • NPI 1346235314
  NPD
• Northwestern Medical Faculty Foundation

  dba Northwestern Medical Group

  • Durable Medical Equipment & Medical Supplies
  • Chicago, IL
  • NPI 1417718479
  NPD

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

• Central Dupage Hospital Association

  dba Northwestern Medicine Central Dupage Hospital

  • General Acute Care Hospital
  • Winfield, IL
  • NPI 1003864810
  Care Compare affiliation
• Central Dupage Hospital Association

  dba Northwestern Medicine Central Dupage Hospital

  • Psychiatric Hospital Unit
  • Winfield, IL
  • NPI 1740230895
  Care Compare affiliation
• Northern Illinois Medical Center

  dba Centegra Hospital McHenry

  • General Acute Care Hospital
  • McHenry, IL
  • NPI 1982611281
  Care Compare affiliation
• Northwestern Lake Forest Hospital

  dba Northwestern Medicine Lake Forest Hospital

  • General Acute Care Hospital
  • Lake Forest, IL
  • NPI 1124025176
  Care Compare affiliation

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

{
    "created_epoch": "1338336000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789862400000",
    "number": "1760743470",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "333 COMMERCE DR",
            "city": "CRYSTAL LAKE",
            "state": "IL",
            "postal_code": "600143539",
            "telephone_number": "779-356-4095",
            "fax_number": "779-356-4121"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "333 COMMERCE DR",
            "city": "CRYSTAL LAKE",
            "state": "IL",
            "postal_code": "600143539",
            "telephone_number": "779-356-4095"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "STILLING",
        "first_name": "REGINA",
        "middle_name": "M",
        "name_prefix": "Ms.",
        "credential": "CNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2012-05-30",
        "last_updated": "2026-09-20",
        "certification_date": "2026-09-20",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "IL",
            "license": "209009570",
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "IL",
            "license": "277.005255",
            "primary": false
        },
        {
            "code": "363LF0000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Family",
            "state": "IL",
            "license": "209009570",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "01",
            "desc": "Other (non-Medicare)",
            "issuer": "STATE LICENSE",
            "identifier": "209009570",
            "state": "IL"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• David J Stern, D.D.S.
• Jason G Sterwerf, LCPC
• Nataliia Steshenko, PHYSICIAN EXTENDER
• Steven Mesmer & Associates, LLC
• Kristen Stewart, PHARMD
• William Arthur Stinson, MD
• Carly Marie Stohr, PTA
• Hanna Stovall
• Tiffani L Strasburg
• Strelcheck Chiropractic Clinic LTD

• Family Nurse Practitioner in Crystal Lake, IL
• Providers in Crystal Lake, IL by specialty
• Family Nurse Practitioner in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 20, 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.