Provider Profile
Lydia A. Williams, PhD
Unclaimed ProfileAbout Dr. Williams
Lydia A. Williams, PhD is a psychologist — clinical practicing in Mount Vernon, IL. According to Medicare claims data, Lydia cared for 38 Medicare patients across 424 services. The services billed most often include psychotherapy, 1 hour and psychiatric diagnostic evaluation.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (618) 242-4205
- Email not available
Practice Locations
4230 LINCOLNSHIRE DR SUITE E
Mount Vernon, IL 62864
Concerns and Conditions Addressed
Within Clinical Psychology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- ADHD
- Anxiety
- Depression
- Grief
- OCD
- Relationship issues
- Trauma
Abuse & trauma
- Chronic Illness Coping
Addiction
- Alcohol use disorder
- Drug addiction
- Gambling Addiction
- Porn addiction
- Video Game Addiction
Anxiety
- Agoraphobia
- Childhood Anxiety and Depression
Behavioral
- Hoarding
- Skin picking and hair pulling
Child & adolescent
- Child behavioral problems
- Child Not Talking at School
Cognitive
- Mild cognitive impairment
Dissociative
- Dissociative disorders
Eating & Body Image
- Body image issues
- Eating disorders
Health & Pain
- Chronic pain
Identity
- Gender dysphoria
Interpersonal
- Codependency
- Emotional abuse recovery
Life transitions
- Divorce adjustment
- Identity crisis
Mood & Emotion
- Anger issues
- Bipolar disorder
- Illness anxiety disorder
- Panic disorder
- Postpartum depression
- Social anxiety disorder
- Specific phobias
Neurodevelopmental
- Autism
- Learning disorders
Personal Growth
- Low self-esteem
Personality
- Borderline personality disorder
- Perfectionism
Self-harm & crisis
- Self-harm
Sensory & neurological
- Concussion emotional symptoms
- Hatred of Specific Sounds
Severe mental illness
- Schizophrenia
Sleep
- Chronic Nightmares
- Insomnia
Stress & Lifestyle
- Adjustment disorder
- Burnout
Stress & lifestyle
- Caregiver burnout
Work & identity
- Imposter syndrome
Procedures & services
Most searched procedures
- Cognitive behavioral therapy
- Couples counseling
- EMDR
- Family therapy
- Psychological testing
- Therapy
Assessments
- Autism screening
- Dementia Screening
- Gender Affirming Care Assessment
- Memory testing
Behavioral Interventions
- Acceptance and commitment therapy (ACT)
- Anger management
- Dialectical behavior therapy (DBT)
- Exposure and response prevention (ERP)
- Habit reversal training
- Prolonged exposure therapy
Brain-based therapies
- Neurofeedback
Child & adolescent
- Parent-child interaction therapy
- Play therapy
Crisis & safety
- Suicide safety planning
Group Programs
- Support groups
Individual therapy
- Behavioral activation
- Compassion-Focused Therapy
- Solution-focused brief therapy
Interpersonal
- Premarital counseling
Mind-Body
- Biofeedback
- Brainspotting
- Hypnotherapy
- Mindfulness-based stress reduction
- Somatic experiencing
Parenting & Support
- Parent coaching
Psychodynamic & Integrative
- Internal family systems (IFS)
- Interpersonal psychotherapy
- Psychodynamic psychotherapy
- Schema Therapy
Relationship & family
- Co-parenting counseling
Skill building
- Executive functioning coaching
Sleep & Health
- Insomnia Treatment (CBT-I)
- Pain Reprocessing Therapy
Specialized therapy
- Ketamine-assisted counseling
Stress & Lifestyle
- Stress Management Counseling
Testing & evaluation
- ADHD Evaluation
- Bariatric Surgery Evaluation
- Emotional Support Animal Evaluation
- Forensic psychological evaluation
- Neuropsychological Testing
- Psychoeducational Testing
Therapy formats
- Group psychotherapy
- Online counseling
- Walk and Talk Therapy
Trauma therapy
- Cognitive processing therapy
Procedures Most Often Billed to Medicare
424 services · 38 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Psychotherapy, 1 hour | Treatment | 90837 |
410 | More often than most peers in Psychologist — Clinical |
| Psychiatric diagnostic evaluation | Treatment | 90791 |
14 | Less often than most peers in Psychologist — Clinical |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 3
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
More connections — 15 related providers in 2 groups
Class of 1995 at Other 7
Providers who graduated from the same medical school in the same year.
Also performs Psychotherapy, 1 hour 8
Providers in IL who bill this service to Medicare most often.
Common questions
What kind of doctor is Lydia A. Williams?
Lydia A. Williams is a psychologist in Mount Vernon, IL. That is the designation recorded for this NPI in the federal registry, where it is listed as “Psychologist — Clinical”.
NPI registry
What is Lydia A. Williams's address?
Lydia A. Williams is listed at 4230 Lincolnshire Dr Suite E, Mount Vernon, IL 62864. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Lydia A. Williams?
The number on file is (618) 242-4205. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Lydia A. Williams's NPI number?
Lydia A. Williams's National Provider Identifier is 1184721110. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Lydia A. Williams train?
Lydia A. Williams attended Other, graduating in 1995. This comes from the CMS National Downloadable File.
CMS public data
How long has Lydia A. Williams been practicing?
Lydia A. Williams has 31 years experience. Calculated from a graduation year of 1995, reported in the CMS National Downloadable File.
CMS public data
What procedures does Lydia A. Williams perform?
According to Medicare billing data, Lydia A. Williams provides treatments such as psychotherapy, 1 hour and psychiatric diagnostic evaluation. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Lydia A. Williams confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Lydia A. Williams. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.