Physician Profile
Andrew Z. Williams, M.D. is a healthcare provider in New Orleans, LA specializing in child & adolescent psychiatry. Andrew trained at Michigan State University College of Human Medicine, graduating in 1996. Medicare claims data shows Andrew provided 395 services to 27 patients. The services billed most often include subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes and hospital discharge day management, 30 minutes or less.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
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.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
3450 CHESTNUT ST 3RD FLOOR
New Orleans, LA 70115
Within Child and Adolescent Psychiatry generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Most searched conditions
Addiction & Substance Use
Anxiety
Anxiety & Compulsions
Attachment and trauma
Behavior
Behavioral Problems
Crisis & Mood
Developmental & Elimination
Developmental & Identity
Dissociation
Eating & Body Image
Eating disorders
Elimination disorders
Mood and personality
Neurological & Tics
Neuropsychiatric
School & Learning
Sleep
Sleep & Routine
Stress and physical symptoms
Substance use
Trauma & Stress
Most searched procedures
Addiction Care
Behavioral Interventions
Behavioral support
Brain stimulation
Crisis Care
Eating & Specialty
Eating disorders
Evaluation and visits
Medication management
Parent Support
School & Advocacy
Screening and testing
Skill Building
Specialty Treatments
Substance use
Talk Therapy
Testing & Assessment
Therapy
Trauma & Specialty
395 services · 27 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
375 | More than most peers in Child & Adolescent Psychiatry |
| Hospital discharge day management, 30 minutes or less | Office visit | 99238 |
20 | As often as other peers in Child & Adolescent Psychiatry |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Andrew Z. Williams is a child & adolescent psychiatry in New Orleans, LA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Andrew Z. Williams is listed at 3450 Chestnut St 3Rd Floor, New Orleans, LA 70115. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (504) 412-1580. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Andrew Z. Williams's National Provider Identifier is 1255479903. 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
Andrew Z. Williams attended Michigan State University College of Human Medicine, graduating in 1996. This comes from the CMS National Downloadable File.
CMS public data
Andrew Z. Williams has 30 years experience. Calculated from a graduation year of 1996, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Andrew Z. Williams the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Andrew Z. 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.