Troy Williamson, - Medicare Physician Assistant in Los Alamitos, CA

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Troy Williamson, is a medicare enrolled "Physician Assistant" in Los Alamitos, California. His current practice location is 3751 Katella Ave, Los Alamitos, California. You can reach out to his office (for appointments etc.) via phone at (562) 598-1311.

Troy Williamson is licensed to practice in California (license number PA63942) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1750166591.

Contact Information

Troy Williamson,
3751 Katella Ave,
Los Alamitos, CA 90720-3113
(562) 598-1311
Not Available

Map and Direction




Provider's Profile

Full NameTroy Williamson
GenderMale
SpecialityPhysician Assistant
Location3751 Katella Ave, Los Alamitos, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1750166591
  • Provider Enumeration Date: 08/29/2023
  • Last Update Date: 01/27/2024
  Medicare PECOS Information:
  • PECOS PAC ID: 5092151175
  • Enrollment ID: I20240312000512

Medical Identifiers

Medical identifiers for Troy Williamson such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1750166591NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363A00000XPhysician Assistant PA63942 (California)Primary

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. Troy Williamson allows following entities to bill medicare on his behalf.
Entity NameCep America - California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023063542
PECOS PAC ID: 6103739131
Enrollment ID: O20031106000520
Entity NameCep America - California
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1548667843
PECOS PAC ID: 6103739131
Enrollment ID: O20040121000458

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. Troy Williamson 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
Troy Williamson,
3449 Watermarke Pl,
Irvine, CA 92612-5620

Ph: (606) 548-0352		Troy Williamson,
3751 Katella Ave,
Los Alamitos, CA 90720-3113

Ph: (562) 598-1311

Reviews and Comments


Physician Assistant Nurses in Los Alamitos, CA

Alexander Brito,
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 3582 Kempton Dr, Los Alamitos, CA 90720
Phone: 562-338-8809    
Lauren Nicole Dewiggins, PA-C
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 3851 Katella Ave Ste 202, Los Alamitos, CA 90720
Phone: 562-206-0177    
Megan X. Chen,
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 3851 Katella Ave Ste 202, Los Alamitos, CA 90720
Phone: 562-206-0177    Fax: 562-206-1576
Mr. Alfred T Reyno, PA-C
Physician Assistant
Medicare: Medicare Enrolled
Practice Location: 10861 Cherry Street, Suite 302, Los Alamitos, CA 90720
Phone: 562-490-1011    Fax: 562-594-9226
Leslie Annette Davis, PA
Physician Assistant
Medicare: Not Enrolled in Medicare
Practice Location: 3751 Katella Ave, Los Alamitos, CA 90720
Phone: 562-246-6822    Fax: 562-330-2402
Daniel Davis, PA-C
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 3851 Katella Ave Ste 202, Los Alamitos, CA 90720
Phone: 562-206-0177    
Salma Balbas, PA-C
Physician Assistant
Medicare: Accepting Medicare Assignments
Practice Location: 3772 Katella Ave Ste 206, Los Alamitos, CA 90720
Phone: 562-430-4294    

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.