Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

MS. Treacy H Williams, PMHNP

Individual provider Psychiatric/Mental Health Nurse Practitioner · NPI 1477184299

MS. Treacy H Williams, PMHNP is a Nurse Practitioner in Saint Louis, Missouri. Qualified in 2019, 7 years ago. Practices with M Seraji MD LLC, a 3-clinician group and accepts Medicare assignment. Licensed in Missouri.

Years since qualifying
7
Licensed in
MO
In the registry since
2020
What do these letters mean?
PMHNP — Psychiatric-Mental Health Nurse Practitioner
A nurse practitioner specialising in mental health, able to prescribe psychiatric medication.

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Practice location Address checks out

3009 N Ballas Rd Dept Psychiatry Ste 141A
Saint Louis, MO 63131-2322
Phone: (314) 286-1700
Fax: (314) 627-7225
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatric/Mental Health Nurse Practitioner (primary) Taxonomy 363LP0808X · Licence 2020002310 (MO)

Record details

NPI number1477184299
Entity typeIndividual (Type 1)
GenderFemale
Credentials PMHNP
Sole proprietorNo
NPI enumeratedJanuary 30, 2020
Last updated in NPPESJanuary 5, 2026
Certification dateJanuary 30, 2020

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyNURSE PRACTITIONER
Medical schoolOTHER
Graduated 2019 (7 years in practice)
Group practice M Seraji Md Llc — 3 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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