Dr Andrew Zachary Williams, MD - Medicare Psychiatry in New Orleans, LA

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Dr Andrew Zachary Williams, MD is a medicare enrolled "Psychiatry & Neurology - Child & Adolescent Psychiatry" physician in New Orleans, Louisiana. He went to Michigan State University College Of Human Medicine and graduated in 1996 and has 29 years of diverse experience with area of expertise as Psychiatry. He is a member of the group practice South Louisiana Medical Associates and his current practice location is 3450 Chestnut St, 3rd Floor, New Orleans, Louisiana. You can reach out to his office (for appointments etc.) via phone at (504) 412-1580.

Dr Andrew Zachary Williams is licensed to practice in Louisiana (license number 200420) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1255479903.

Contact Information

Dr Andrew Zachary Williams, MD
3450 Chestnut St, 3rd Floor,
New Orleans, LA 70115-2443
(504) 412-1580
(504) 412-1530

Map and Direction




Physician's Profile

Full NameDr Andrew Zachary Williams
GenderMale
SpecialityPsychiatry
Experience29 Years
Location3450 Chestnut St, New Orleans, Louisiana
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Andrew Zachary Williams attended and graduated from Michigan State University College Of Human Medicine in 1996
  NPI Data:
  • NPI Number: 1255479903
  • Provider Enumeration Date: 02/02/2007
  • Last Update Date: 10/17/2008
  Medicare PECOS Information:
  • PECOS PAC ID: 3375601750
  • Enrollment ID: I20081029000598

Medical Identifiers

Medical identifiers for Dr Andrew Zachary Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1255479903NPI-NPPES
1063151MedicaidLA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084P0804XPsychiatry & Neurology - Child & Adolescent Psychiatry 200420 (Louisiana)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Leonard J Chabert Medical CenterHouma, LAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
South Louisiana Medical Associates8527968650108

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr Andrew Zachary Williams allows following entities to bill medicare on his behalf.
Entity NameLouisiana State University School Of Medicine In New Orleans Faculty G
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1477582526
PECOS PAC ID: 0244136448
Enrollment ID: O20031209000661
Entity NameSouth Louisiana Medical Associates
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1942301379
PECOS PAC ID: 8527968650
Enrollment ID: O20040113000589
Entity NameLouisiana State University School Of Med In New Orleans Faculty Grou
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1932492626
PECOS PAC ID: 9739358722
Enrollment ID: O20110810000538
Entity NameLife Coast Community Health Center Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073157970
PECOS PAC ID: 3870929193
Enrollment ID: O20200205001617

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr Andrew Zachary Williams is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Andrew Zachary Williams, MD
1340 Poydras St, Suite 1640,
New Orleans, LA 70112-1221

Ph: (504) 412-1835		Dr Andrew Zachary Williams, MD
3450 Chestnut St, 3rd Floor,
New Orleans, LA 70115-2443

Ph: (504) 412-1580

Reviews and Comments


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Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.