Katherine De Castro, PA-C - Medicare Physician Assistant in Antioch, CA

Katherine De Castro, PA-C is a medicare enrolled "Physician Assistant - Medical" in Antioch, California. She graduated from nursing school in 2025 and has 1 years of diverse experience with area of expertise as Physician Assistant. Her current practice location is 3903 Lone Tree Way Ste 104, Antioch, California. You can reach out to her office (for appointments etc.) via phone at (925) 755-1255.

Katherine De Castro is licensed to practice in California (license number ) and she also participates in the medicare program. She may accept medicare assignments (which means she may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and her NPI Number is 1598501991.

Contact Information

Katherine De Castro, PA-C
3903 Lone Tree Way Ste 104,
Antioch, CA 94509-6251
(925) 755-1255
Not Available

Map and Direction




Provider's Profile

Full NameKatherine De Castro
GenderFemale
SpecialityPhysician Assistant
Experience1 Years
Location3903 Lone Tree Way Ste 104, Antioch, California
Accepts Medicare AssignmentsMay be. She may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Katherine De Castro graduated from nursing school in 2025
  NPI Data:
  • NPI Number: 1598501991
  • Provider Enumeration Date: 07/04/2024
  • Last Update Date: 10/29/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 5496250995
  • Enrollment ID: I20250925002096

Medical Identifiers

Medical identifiers for Katherine De Castro such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1598501991NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363AM0700XPhysician Assistant - Medical (California)Primary
390200000XStudent In An Organized Health Care Education/training Program (* (Not Available))Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Sutter Delta Medical CenterAntioch, CAHospital
John Muir Medical Center - Walnut Creek CampusWalnut creek, CAHospital

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. Katherine De Castro 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
Katherine De Castro, PA-C
3903 Lone Tree Way Ste 104,
Antioch, CA 94509-6251

Ph: (925) 755-1255
Katherine De Castro, PA-C
3903 Lone Tree Way Ste 104,
Antioch, CA 94509-6251

Ph: (925) 755-1255

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.