Robert Frederick Warburton, ARNP - Medicare Nurse Practitioner in Tustin, CA

  1. Home
  2. Nurse Practitioner
  3. CA
  4. Tustin
Robert Frederick Warburton, ARNP is a medicare enrolled "Nurse Practitioner - Family" in Tustin, California. His current practice location is 250 W Main St Ste 101, Tustin, California. You can reach out to his office (for appointments etc.) via phone at (714) 461-4121.

Robert Frederick Warburton is licensed to practice in Florida (license number ARNP9376910) 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 1477021764.

Contact Information

Robert Frederick Warburton, ARNP
250 W Main St Ste 101,
Tustin, CA 92780-7717
(714) 461-4121
(385) 900-1673

Map and Direction




Provider's Profile

Full NameRobert Frederick Warburton
GenderMale
SpecialityNurse Practitioner - Family
Location250 W Main St Ste 101, Tustin, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1477021764
  • Provider Enumeration Date: 11/05/2018
  • Last Update Date: 05/11/2025
  Medicare PECOS Information:
  • PECOS PAC ID: 5698107662
  • Enrollment ID: I20250224002476

Medical Identifiers

Medical identifiers for Robert Frederick Warburton such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1477021764NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
363LF0000XNurse Practitioner - Family 9376910 (California)Secondary
363LP0808XNurse Practitioner - Psychiatric/mental Health 95012975 (California)Secondary
363LP0808XNurse Practitioner - Psychiatric/mental Health 61527591 (Washington)Secondary
363LP0808XNurse Practitioner - Psychiatric/mental Health 294766 (Arizona)Secondary
363LF0000XNurse Practitioner - Family ARNP9376910 (Florida)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. Robert Frederick Warburton allows following entities to bill medicare on his behalf.
Entity NameGrow Healthcare Group Pa
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1245845932
PECOS PAC ID: 3476961368
Enrollment ID: O20221129001217

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. Robert Frederick Warburton 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
Robert Frederick Warburton, ARNP
250 W Main St Ste 101,
Tustin, CA 92780-7717

Ph: (714) 461-4121		Robert Frederick Warburton, ARNP
250 W Main St Ste 101,
Tustin, CA 92780-7717

Ph: (714) 461-4121

Reviews and Comments


Nurse Practitioner Nurses in Tustin, CA

Mr. Michael Sean Kelly, NP
Nurse Practitioner
Medicare: Accepting Medicare Assignments
Practice Location: 17601 17th St Ste 120, Tustin, CA 92780
Phone: 714-769-6090    
Mrs. Nicole Ninofranco Alcantara, N.P.
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 14642 Newport Avenue Suite 200, Tustin, CA 92780
Phone: 714-669-4466    
Ning Sun, FNP-BC
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 2492 Walnut Ave Ste 100, Tustin, CA 92780
Phone: 714-709-8000    Fax: 714-709-8080
Nicole Rolle Noche, NP
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 661 W 1st St Ste G, Tustin, CA 92780
Phone: 714-665-9890    
Julia Samarin,
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 17581 Irvine Blvd Ste 114, Tustin, CA 92780
Phone: 949-503-1414    
Sandra Garcia,
Nurse Practitioner
Medicare: Medicare Enrolled
Practice Location: 14642 Newport Ave Ste 101, Tustin, CA 92780
Phone: 714-352-5800    
Eileen Gomez,
Nurse Practitioner
Medicare: Not Enrolled in Medicare
Practice Location: 661 W 1st St Ste G, Tustin, CA 92780
Phone: 714-665-9890    Fax: 714-665-9891

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.