Justin Marquis, PA - Medicare Physician Assistant in Oceanside, CA

Justin Marquis, PA is a medicare enrolled "Physician Assistant" in Oceanside, California. He graduated from nursing school in 2000 and has 24 years of diverse experience with area of expertise as Physician Assistant. He is a member of the group practice Graybill Medical Group Inc, Arch Health Partners Inc and his current practice location is 200 Mercy Circle, Oceanside, California. You can reach out to his office (for appointments etc.) via phone at (760) 725-1288.

Justin Marquis is licensed to practice in California (license number PA16871) 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 1891729422.

Contact Information

Justin Marquis, PA
200 Mercy Circle,
Oceanside, CA 92055-5191
(760) 725-1288
Not Available

Map and Direction




Provider's Profile

Full NameJustin Marquis
GenderMale
SpecialityPhysician Assistant
Experience24 Years
Location200 Mercy Circle, Oceanside, California
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:
  • Justin Marquis graduated from nursing school in 2000
  NPI Data:
  • NPI Number: 1891729422
  • Provider Enumeration Date: 07/10/2006
  • Last Update Date: 10/23/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 9133016264
  • Enrollment ID: I20110728000173

Medical Identifiers

Medical identifiers for Justin Marquis such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1891729422NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363A00000XPhysician Assistant PA16871 (California)Primary
2083X0100XPreventive Medicine - Occupational Medicine 16871 (California)Secondary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Graybill Medical Group Inc9335050517104
Arch Health Partners Inc9931239027221

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. Justin Marquis 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
Justin Marquis, PA
Po Box 555191,
Camp Pendleton, CA 92055-5191

Ph: (760) 725-1288
Justin Marquis, PA
200 Mercy Circle,
Oceanside, CA 92055-5191

Ph: (760) 725-1288

Reviews and Comments


Physician Assistant Nurses in Oceanside, CA

Jennifer Blair Garrett Benson, PA-C
Physician Assistant
Medicare: Not Enrolled in Medicare
Practice Location: 2122 S El Camino Real, Suite 100, Oceanside, CA 92054
Phone: 760-681-5222    Fax: 760-681-5151
Mrs. Malia Ann Sering, PA
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Medicare: Accepting Medicare Assignments
Practice Location: 3629 Vista Way, Oceanside, CA 92056
Phone: 760-757-7546    Fax: 760-828-9140
Kevin Reusch, PA-C
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Medicare: Medicare Enrolled
Practice Location: 3905 Waring Rd, Oceanside, CA 92056
Phone: 760-724-9000    
Melinda Wee Fah Martinez, PA
Physician Assistant
Medicare: Medicare Enrolled
Practice Location: 4002 Vista Way, Oceanside, CA 92056
Phone: 760-940-5660    
Michelle Partain, PA-C
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Medicare: Accepting Medicare Assignments
Practice Location: 3230 Waring Ct, Suite J, Oceanside, CA 92056
Phone: 760-941-4498    
Mariah Eller,
Physician Assistant
Medicare: Not Enrolled in Medicare
Practice Location: 3142 Vista Way Ste 401, Oceanside, CA 92056
Phone: 760-681-5222    
Brooklyne Hazenberg, PA-C
Physician Assistant
Medicare: Not Enrolled in Medicare
Practice Location: 4171 Oceanside Blvd Ste 109, Oceanside, CA 92056
Phone: 760-216-6253    

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.