John Gaspar Agtuca, DO - Medicare Internal Medicine in Riverside, CA

John Gaspar Agtuca, DO is a medicare enrolled "Internal Medicine" physician in Riverside, California. His current practice location is 6900 Brockton Ave Ste 100, Riverside, California. You can reach out to his office (for appointments etc.) via phone at (951) 781-3800.

John Gaspar Agtuca is licensed to practice in California (license number 20A16933) 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 1306200183.

Contact Information

John Gaspar Agtuca, DO
6900 Brockton Ave Ste 100,
Riverside, CA 92506-3817
(951) 781-3800
(951) 781-1973

Map and Direction




Physician's Profile

Full NameJohn Gaspar Agtuca
GenderMale
SpecialityInternal Medicine
Location6900 Brockton Ave Ste 100, Riverside, California
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1306200183
  • Provider Enumeration Date: 04/07/2016
  • Last Update Date: 08/17/2023
  Medicare PECOS Information:
  • PECOS PAC ID: 8729410634
  • Enrollment ID: I20191114002512

Medical Identifiers

Medical identifiers for John Gaspar Agtuca such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1306200183NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 20A16933 (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. John Gaspar Agtuca allows following entities to bill medicare on his behalf.
Entity NameCitrus Valley Medical Associates Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1306033709
PECOS PAC ID: 0446329932
Enrollment ID: O20080523000551
Entity NamePlatinum Providers Medical Group, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1275018392
PECOS PAC ID: 0941634927
Enrollment ID: O20191227002153

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. John Gaspar Agtuca 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
John Gaspar Agtuca, DO
Po Box 5089,
Norco, CA 92860-8003

Ph: () -
John Gaspar Agtuca, DO
6900 Brockton Ave Ste 100,
Riverside, CA 92506-3817

Ph: (951) 781-3800

Reviews and Comments


Internal Medicine Doctors in Riverside, CA

Sang Kun Yim, MD
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Practice Location: 7117 Brockton Ave, Riverside, CA 92506
Phone: 951-683-6370    
Sarah Chae, MD
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Practice Location: 4646 Brockton Ave Ste 201, Riverside, CA 92506
Phone: 951-585-1800    Fax: 951-585-1801
Alina S Popa, MD
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Richard M. Bradburne, MD
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Practice Location: 10800 Magnolia Ave, Riverside, CA 92505
Phone: 909-353-2000    
Shelly C. Thio, MD
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Fawaz Gailani, MD
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Practice Location: 10800 Magnolia Ave, Riverside, CA 92505
Phone: 909-353-2000    
Andrew Duke, M.D.
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Medicare: Medicare Enrolled
Practice Location: 4445 Magnolia Ave, Riverside, CA 92501
Phone: 951-788-3000    

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.