Dr Eric James Gureghian, MD - Internal Medicine in Ontario, CA

Dr Eric James Gureghian, MD is a Internal Medicine physician based in Ontario, California. Dr Eric James Gureghian is licensed to practice in California (license number A60427) and his current practice location is 3990 Concours, Suite 500, Ontario, California. He can be reached at his office (for appointments etc.) via phone at (909) 605-8000.

NPI number for Dr Eric James Gureghian is 1942293006 and his current mailing address is 3990 Concours, Suite 500, Ontario, California. He does not participate in medicare program and thus does not accept medicare assignments. His NPI Number is 1942293006.

Contact Information

Dr Eric James Gureghian, MD
3990 Concours, Suite 500,
Ontario, CA 91764-7970
(909) 605-8000
(866) 551-0236

Map and Direction




Physician's Profile

Full NameDr Eric James Gureghian
GenderMale
SpecialityInternal Medicine
Location3990 Concours, Ontario, California
Accepts Medicare AssignmentsDoes not participate in Medicare Program. He may not accept medicare assignment.
  NPI Data:
  • NPI Number: 1942293006
  • Provider Enumeration Date: 08/24/2005
  • Last Update Date: 06/29/2016

Medical Identifiers

Medical identifiers for Dr Eric James Gureghian such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1942293006NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine A60427 (California)Primary

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. Dr Eric James Gureghian is NOT enrolled with medicare and thus cannot prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr Eric James Gureghian, MD
3990 Concours, Suite 500,
Ontario, CA 91764-7970

Ph: (909) 605-8000
Dr Eric James Gureghian, MD
3990 Concours, Suite 500,
Ontario, CA 91764-7970

Ph: (909) 605-8000

Reviews and Comments


Internal Medicine Doctors in Ontario, CA

Hedy Cecilia Loa, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1131 W 6th St Ste 150, Ontario, CA 91762
Phone: 909-482-4462    Fax: 909-482-4485
Rodman A St. Clair, M.D.
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 3281 E Guasti Rd, Ontario, CA 91761
Phone: 909-605-8015    Fax: 866-929-7385
Abid H Khan, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 1001 W 6th St, Ontario, CA 91762
Phone: 909-984-0313    
Dr. Yan Zhang, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 653 E E St Ste 107, Ontario, CA 91764
Phone: 626-991-0668    
Dr. David Herbert Daniels, MD
Internal Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 3535 Inland Empire Blvd, Suite 27, Ontario, CA 91764
Phone: 909-941-2572    Fax: 909-481-5298
Liwanag Asuncion, M.D.
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 606 E Bermuda Dunes St, Ontario, CA 91761
Phone: 440-225-7095    Fax: 909-295-9100
Dr. Vanessa Brennan Kwok, DO
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 3401 Centre Lake Dr, Suite 650, Ontario, CA 91761
Phone: 909-351-8529    

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.