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CYNTHIA LYNN WILLIAMS LCSW
NPI 1528672383
Counselor - Professional in O Fallon, MO

Active since August 31, 2020PECOS EnrolledAccepts Medicare Assignment
801 WOODLAWN AVE STE 15, O FALLON, MO 63366(636) 379-1779(636) 634-3496 Get Directions Write a Review

NPPES record last updated: August 31, 2020. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Cynthia Lynn Williams Lcsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

CYNTHIA LYNN WILLIAMS LCSW (NPI 1528672383) is an individual professional provider in O Fallon, Missouri, licensed in Missouri (2016042364) and active in the NPI registry since August 2020. She is enrolled in Medicare PECOS and is a graduate of Other (2015).

NPPES Registry Identity

NPI1528672383
Entity TypeIndividualFemale
Primary Taxonomy101YP2500X
Provider Legal NameCYNTHIA LYNN WILLIAMSCredential: LCSW
Location Address801 WOODLAWN AVE STE 15O Fallon, MO 63366-7647
Mailing Address801 Woodlawn Ave Ste 15O Fallon, MO 63366-7647 · (636) 379-1779 · Fax (636) 634-3496
Phone(636) 379-1779
Fax(636) 634-3496
Sole ProprietorNo
Medical School CMSOtherGraduated 2015
Enumeration DateAugust 31, 2020
NPPES CertifiedAugust 28, 2020
✔ NPI 1528672383 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · ProfessionalBehavioral Health & Social Service Providers
Taxonomy Code101YP2500X
License✔ Licensed in MO · 2016042364
801 WOODLAWN AVE STE 15, O Fallon, MO 63366
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Medica, Oscar Insurance Company, UnitedHealthcare.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Cynthia Lynn Williams Lcsw is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID4284052093
PECOS Enrollment IDI20200910002210
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Psychotherapy, 1 hour 90837
Psychotherapy is a therapeutic interaction or treatment between a trained professional and a patient. In a 1-hour session, you'll talk about your feelings, thoughts, and behaviors to help identify and manage mental health issues. This process aids in personal growth, healing, and improved well-being.
372 services44 patients
Psychiatric diagnostic evaluation 90791
A psychiatric diagnostic evaluation is a thorough assessment used to identify any mental health conditions you may have. It involves a detailed discussion about your symptoms, thoughts, feelings and behavior patterns. Your medical history and family's mental health history are also considered.
15 services15 patients
Psychotherapy, 45 minutes 90834
Psychotherapy is a treatment method where you converse with a therapist about your thoughts, feelings, and behaviors. In a 45-minute session, the therapist assists you in understanding and managing your mental health concerns, improving emotional wellness, and promoting personal growth.
14 services12 patients

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

HEATHER NICOLE BRUCE LPC
Counselor (Professional)
801 WOODLAWN AVE STE 15
O FALLON, MO 63366
St. Charles County (636) 379-1779
MICHAEL EVETTS
Counselor (Professional)
801 WOODLAWN AVE STE 15
O FALLON, MO 63366
St. Charles County (636) 379-1779
JILL KNEEMILLER LPC
Counselor (Professional)
801 WOODLAWN AVE STE 15
O FALLON, MO 63366
St. Charles County (636) 379-1779
SANDHILL COUNSELING AND CONSULTATION, LLC
Marriage & Family Therapist
801 WOODLAWN AVE STE 15
O FALLON, MO 63366
St. Charles County (636) 379-1779

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Cynthia Williams's NPI number?

The NPI number for Cynthia Williams is 1528672383. It was assigned to this individual provider in the NPPES registry on August 31, 2020.

Where is Cynthia Williams located?

Cynthia Williams practices at 801 Woodlawn Ave Ste 15, O Fallon, MO 63366. The listed phone number is (636) 379-1779.

What is Cynthia Williams's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Professional, with taxonomy code 101YP2500X.

Is Cynthia Williams enrolled in Medicare?

Yes. Cynthia Williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Cynthia Williams accept?

Health plans from Medica, Oscar Insurance Company and UnitedHealthcare list Cynthia Williams as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Cynthia Williams was last updated on August 31, 2020. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.