Gabrielle Stetz Williams, MD - Medicare Psychiatry in Westminster, CA

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Gabrielle Stetz Williams, MD is a medicare enrolled "Psychiatry & Neurology - Psychiatry" physician in Westminster, California. She went to University Of California, Irvine, California College Of Medicine and graduated in 2020 and has 6 years of diverse experience with area of expertise as Psychiatry. She is a member of the group practice County Of Orange and her current practice location is 14140 Beach Blvd, Westminster, California. You can reach out to her office (for appointments etc.) via phone at (714) 934-4600.

Gabrielle Stetz Williams is licensed to practice in California (license number A184844) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1609497916.

Contact Information

Gabrielle Stetz Williams, MD
14140 Beach Blvd,
Westminster, CA 92683-4453
(714) 934-4600
Not Available

Map and Direction




Physician's Profile

Full NameGabrielle Stetz Williams
GenderFemale
SpecialityPsychiatry
Experience6 Years
Location14140 Beach Blvd, Westminster, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Gabrielle Stetz Williams attended and graduated from University Of California, Irvine, California College Of Medicine in 2020
  NPI Data:
  • NPI Number: 1609497916
  • Provider Enumeration Date: 04/28/2020
  • Last Update Date: 07/14/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 7618455908
  • Enrollment ID: I20260128003578

Medical Identifiers

Medical identifiers for Gabrielle Stetz Williams such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1609497916NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084P0800XPsychiatry & Neurology - Psychiatry A184844 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
County Of Orange195121578945

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. Gabrielle Stetz Williams allows following entities to bill medicare on her behalf.
Entity NameCounty of Orange
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1104963347
PECOS PAC ID: 1951215789
Enrollment ID: O20031117000447

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. Gabrielle Stetz 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
Gabrielle Stetz Williams, MD
3800 W Chapman Ave Ste 500,
Orange, CA 92868-1638

Ph: (619) 964-8963		Gabrielle Stetz Williams, MD
14140 Beach Blvd,
Westminster, CA 92683-4453

Ph: (714) 934-4600

Reviews and Comments


Psychiatry & Neurology Doctors in Westminster, CA

Dr. Boniface O Onubah, M.D.
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Phone: 714-889-2150    
Mohammad Reza Hajighasemi-ossareh, MD
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Practice Location: 200 Hospital Cir, Westminster, CA 92683
Phone: 657-666-7700    
Muhammad Ali Anees, M.D.
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Practice Location: 14140 Beach Blvd Ste 223, Westminster, CA 92683
Phone: 714-896-7566    
Dr. Chau Ton-that, D.O.
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 9533 Bolsa Ave, Westminster, CA 92683
Phone: 714-531-8720    Fax: 714-531-5794
Doan Qui Nguyen, MD
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 14140 Beach Blvd Ste 223, Westminster, CA 92683
Phone: 714-896-7566    Fax: 714-896-7408
Angela Sureen, M.D.
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 14140 Beach Blvd, Westminster, CA 92683
Phone: 949-896-7566    Fax: 949-896-7408
Dr. Bong Doan, M.D.
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 14140 Beach Blvd Ste 200, Westminster, CA 92683
Phone: 714-896-7566    

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.