Timothy Patrick Ong, MD - Medicare Internal Medicine in San Jose, CA

Timothy Patrick Ong, MD is a medicare enrolled "Internal Medicine" physician in San Jose, California. He went to University Of California, San Francisco School Of Medicine and graduated in 1993 and has 31 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice County Of Santa Clara and his current practice location is 2400 Moorpark Ave, Vhc Moorpark Internal Medicine Clinic, San Jose, California. You can reach out to his office (for appointments etc.) via phone at (408) 885-5000.

Timothy Patrick Ong is licensed to practice in California (license number G80475) 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 1033125075.

Contact Information

Timothy Patrick Ong, MD
2400 Moorpark Ave, Vhc Moorpark Internal Medicine Clinic,
San Jose, CA 95128-2631
(408) 885-5000
(408) 885-3335

Map and Direction




Physician's Profile

Full NameTimothy Patrick Ong
GenderMale
SpecialityInternal Medicine
Experience31 Years
Location2400 Moorpark Ave, San Jose, 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:
  • Timothy Patrick Ong attended and graduated from University Of California, San Francisco School Of Medicine in 1993
  NPI Data:
  • NPI Number: 1033125075
  • Provider Enumeration Date: 07/31/2006
  • Last Update Date: 02/27/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 0749344091
  • Enrollment ID: I20090130000511

Medical Identifiers

Medical identifiers for Timothy Patrick Ong such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1033125075NPI-NPPES
00G804750MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine G80475 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Santa Clara Valley Medical CenterSan jose, CAHospital
Stanford Health CareStanford, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
County Of Santa Clara1254244973722

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. Timothy Patrick Ong allows following entities to bill medicare on his behalf.
Entity NameCounty Of Santa Clara
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1659450955
PECOS PAC ID: 1254244973
Enrollment ID: O20040113000757
Entity NameCounty Of Santa Clara
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1699885079
PECOS PAC ID: 1254244973
Enrollment ID: O20040113000784
Entity NameCounty Of Santa Clara
Entity TypePart B Supplier - Other Medical Care Group
Entity IdentifiersNPI Number: 1629301346
PECOS PAC ID: 1254244973
Enrollment ID: O20110318000170

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. Timothy Patrick Ong 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
Timothy Patrick Ong, MD
2400 Moorpark Ave, Suite 220,
San Jose, CA 95128-2631

Ph: (408) 885-5000
Timothy Patrick Ong, MD
2400 Moorpark Ave, Vhc Moorpark Internal Medicine Clinic,
San Jose, CA 95128-2631

Ph: (408) 885-5000

Reviews and Comments


Internal Medicine Doctors in San Jose, CA

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Dr. Komal J Bhatt, MD
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Phone: 408-998-2890    Fax: 408-998-2897
Eamonn Patrick Dunphy, MD
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Practice Location: 751 S Bascom Ave, Radiation Oncology, San Jose, CA 95128
Phone: 408-885-4150    

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).

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