Treacy H Williams, PMHNP

Primary specialty

Psychiatric/Mental Health Nurse PractitionerTaxonomy code 363LP0808X

License

2020002310 Issued in MO

Practice address

3009 N Ballas Rd
Dept Psychiatry, Ste 141a
Saint Louis, MO 63131-2322

Phone

(314) 286-1700

Fax

(314) 627-7225

NPI assigned

Jan 30, 2020

Sex

Female

Sole proprietor

No

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

Specialties & licenses 1

Addresses

Electronic endpoints 1

Medicare fee-for-service enrollment

Enrolled in MO

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, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

M Seraji MD LLCGroup PAC ID 9032339205, 3 clinicians

Washington UniversityGroup PAC ID 9830008770, 2,968 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.

• M Seraji MD LLC

  • Psychiatry Physician
  • Saint Louis, MO
  • NPI 1043611767
  Medicare reassignment Care Compare group NPD
• Washington University

  • Multi-Specialty Clinic/Center
  • Saint Louis, MO
  • NPI 1003856592
  Medicare reassignment Care Compare group
• Psychological & Behavioral Consultants, LLC

  dba LifeStance Health

  • Psychiatry Physician
  • Beachwood, OH
  • NPI 1811915713

  MO

  Medicare reassignment NPD

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

{
    "created_epoch": "1580342400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1767571200000",
    "number": "1477184299",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 7412011",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606742011",
            "telephone_number": "314-286-1700",
            "fax_number": "314-627-7225"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3009 N BALLAS RD",
            "address_2": "DEPT PSYCHIATRY, STE 141A",
            "city": "SAINT LOUIS",
            "state": "MO",
            "postal_code": "631312322",
            "telephone_number": "314-286-1700",
            "fax_number": "314-627-7225"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "WILLIAMS",
        "first_name": "TREACY",
        "middle_name": "H",
        "name_prefix": "Ms.",
        "credential": "PMHNP",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2020-01-30",
        "last_updated": "2026-01-05",
        "certification_date": "2020-01-30",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363LP0808X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Psychiatric/Mental Health",
            "state": "MO",
            "license": "2020002310",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [
        {
            "endpointType": "FHIR",
            "endpointTypeDescription": "FHIR URL",
            "endpoint": "https://epicproxy.et0965.epichosted.com/FHIRProxy/api/FHIR/DSTU2/",
            "affiliation": "Y",
            "affiliationName": "Washington University",
            "address_1": "3009 N Ballas Rd",
            "address_2": "Dept Psychiatry, Ste 141A",
            "city": "Saint Louis",
            "state": "MO",
            "country_code": "US",
            "postal_code": "631312322",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "other_names": []
}

• Ternesha Williams
• Terosia Moore Williams, NURSE PRACTITIONER
• Timothy John Williams, MD
• Tonya Williams, MD
• Tracey Ann Williams, OTR/L
• Valerie Williams
• Vanessa Williams
• Vanessa M Williams
• Vicki Williams, OTR
• Wanda Williams, REGISTERED NURSE

• Psychiatric/Mental Health Nurse Practitioner in Saint Louis, MO
• Providers in Saint Louis, MO by specialty
• Psychiatric/Mental Health Nurse Practitioner in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 5, 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.