Melissa Theodore, NP

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

277000045 Issued in IL

Practice address

2650 Ridge Ave
Evanston, IL 60201-1700

Phone

(847) 570-1010

Fax

(847) 733-5108

NPI assigned

Jul 8, 2011

Sex

Female

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other names 1

• Melissa Ritzman Former name

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

Rush Medical College of Rush University, 2010

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Geri Care LTDGroup PAC ID 5991794513, 12 clinicians

Clear Practice PLLCGroup PAC ID 4880137850, 16 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Luxe Home Health Home health agency, Des Plaines, IL, CCN 148317

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: melissa.theodore@768220391342084.direct.elationemr.com

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.

• Geri Care LTD

  • Family Medicine Physician
  • Park Ridge, IL
  • NPI 1629000732
  Medicare reassignment Care Compare group NPD
• Clear Practice PLLC

  • Clinic/Center
  • Creve Coeur, MO
  • NPI 1386498319

  IL

  Medicare reassignment Care Compare group NPD
• Advocate Health and Hospitals Corporation

  • Multi-Specialty Clinic/Center
  • Oak Brook, IL
  • NPI 1700824455
  Medicare reassignment NPD
• HMV Diagnostics

  • Clinic/Center
  • Holiday, FL
  • NPI 1043460744

  IL, Nurse Practitioner

  Medicare reassignment NPD
• Endeavor Health Medical Group

  • Emergency Medicine Physician
  • Evanston, IL
  • NPI 1497701882
  Medicare reassignment NPD (past)
• Inhome Primecare PLLC

  • Primary Care Clinic/Center
  • Lincolnwood, IL
  • NPI 1265076749
  NPD Authorized official
• Advocate Health and Hospitals Corporation

  • Children's Hospital
  • Oak Lawn, IL
  • NPI 1508315516
  NPD
• Endeavor Health Medical Group

  • Anesthesiology Physician
  • Evanston, IL
  • NPI 1265695944
  NPD
• Hansa Medical Groupe PLLC

  • Internal Medicine Physician
  • Skokie, IL
  • NPI 1386804615
  NPD
• Advocate North Side Health Network

  • Clinic/Center
  • Chicago, IL
  • NPI 1780788323
  NPD (past)

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

• Whole Life Home Health LLC

  • Home Health Agency
  • Des Plaines, IL
  • NPI 1417189838
  Care Compare affiliation

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

{
    "created_epoch": "1310083200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1768348800000",
    "number": "1912294083",
    "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",
            "fax_number": "847-733-5315"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2650 RIDGE AVE",
            "city": "EVANSTON",
            "state": "IL",
            "postal_code": "602011700",
            "telephone_number": "847-570-1010",
            "fax_number": "847-733-5108"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "4600 N Ravenswood Ave",
            "address_purpose": "LOCATION",
            "city": "Chicago",
            "state": "IL",
            "postal_code": "606404510",
            "country_code": "US",
            "telephone_number": "773-561-6282",
            "fax_number": "773-561-7612",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "THEODORE",
        "first_name": "MELISSA",
        "credential": "NP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2011-07-08",
        "last_updated": "2026-01-14",
        "certification_date": "2026-01-14",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "IL",
            "license": "277000045",
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "IL",
            "license": "277000045",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MELISSA",
            "last_name": "RITZMAN",
            "credential": "NP",
            "code": "1",
            "type": "Former Name"
        }
    ]
}

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• Kristyn Thielen, APRN
• Kristin E Thieme

• Nurse Practitioner in Evanston, IL
• Providers in Evanston, IL by specialty
• Nurse Practitioner in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 14, 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.