Maria Renea Williams, APRN

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

209033829 Issued in IL

Practice address

820 S Damen Ave
Chicago, IL 60612-3728

Phone

(618) 699-0313

NPI assigned

Jan 12, 2026

Sex

Female

Sole proprietor

Yes

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

Specialties & licenses 2

Addresses

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, 2024

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Post Acute Medical PLLCGroup PAC ID 5193156115, 433 clinicians

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

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 and National Provider Directory roles.

• Post Acute Medical PLLC

  • Geriatric Medicine (Internal Medicine) Physician
  • Lanham, MD
  • NPI 1730713025

  IL

  Medicare reassignment Care Compare group NPD
• Altea Medical Illinois PLLC

  • Geriatric Medicine (Internal Medicine) Physician
  • Chicago Heights, IL
  • NPI 1447039227
  Medicare reassignment NPD

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

{
    "created_epoch": "1768176000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770940800000",
    "number": "1104784834",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5899 MASSACHUSETTS ST",
            "city": "MERRILLVILLE",
            "state": "IN",
            "postal_code": "464102650",
            "telephone_number": "573-586-6372"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "820 S DAMEN AVE",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606123728",
            "telephone_number": "618-699-0313"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "MARIA",
        "middle_name": "RENEA",
        "name_prefix": "Dr.",
        "credential": "APRN",
        "sole_proprietor": "YES",
        "sex": "F",
        "enumeration_date": "2026-01-12",
        "last_updated": "2026-02-13",
        "certification_date": "2026-02-13",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "IL",
            "license": "209033829",
            "primary": true
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "IL",
            "license": "209.033829",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Makahail D Williams
• Marcus Williams, COTA/L
• Margaret Williams, CERTIFIED NURSE ASSI
• Margaret Williams
• Margaret Alice Williams, MD
• Marial Williams
• Marissa Williams
• Mark Williams
• Mary Williams
• Maryanne Nyree Williams, PSY.D.

• Psychiatric/Mental Health Nurse Practitioner in Chicago, IL
• Providers in Chicago, IL by specialty
• Psychiatric/Mental Health Nurse Practitioner in Illinois

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 13, 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.