Dr Ilsong Jason Chong, MD - Medicare Internal Medicine in Oceanside, CA

Dr Ilsong Jason Chong, MD is a medicare enrolled "Internal Medicine - Geriatric Medicine" physician in Oceanside, California. He went to University Of Texas Medical School At Houston and graduated in 1992 and has 32 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice North County Health Project, Inc. and his current practice location is 605 Crouch St Bldg C, Oceanside, California. You can reach out to his office (for appointments etc.) via phone at (760) 736-6767.

Dr Ilsong Jason Chong is licensed to practice in California (license number C152937) 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 1831240159.

Contact Information

Dr Ilsong Jason Chong, MD
605 Crouch St Bldg C,
Oceanside, CA 92054-4415
(760) 736-6767
(760) 736-8740

Map and Direction




Physician's Profile

Full NameDr Ilsong Jason Chong
GenderMale
SpecialityInternal Medicine
Experience32 Years
Location605 Crouch St Bldg C, Oceanside, 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:
  • Dr Ilsong Jason Chong attended and graduated from University Of Texas Medical School At Houston in 1992
  NPI Data:
  • NPI Number: 1831240159
  • Provider Enumeration Date: 01/15/2007
  • Last Update Date: 03/17/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 5597808345
  • Enrollment ID: I20180208002772

Medical Identifiers

Medical identifiers for Dr Ilsong Jason Chong such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1831240159NPI-NPPES
0089HLOtherTXBLUECROSS BLUESHIELD
047274802MedicaidTX

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RG0300XInternal Medicine - Geriatric Medicine K4025 (Texas)Secondary
207RG0300XInternal Medicine - Geriatric Medicine C152937 (California)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
North County Health Project, Inc.276939093972

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. Dr Ilsong Jason Chong allows following entities to bill medicare on his behalf.
Entity NameNorth County Health Project, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1073529681
PECOS PAC ID: 2769390939
Enrollment ID: O20040122001126

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 Ilsong Jason Chong 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
Dr Ilsong Jason Chong, MD
605 Crouch St Bldg C,
Oceanside, CA 92054-4415

Ph: (760) 736-6767
Dr Ilsong Jason Chong, MD
605 Crouch St Bldg C,
Oceanside, CA 92054-4415

Ph: (760) 736-6767

Reviews and Comments


Internal Medicine Doctors in Oceanside, CA

Javaid Ahmed Shad, M.D.
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3923 Waring Rd Ste A, Oceanside, CA 92056
Phone: 760-724-8782    Fax: 760-842-7801
Dr. Mark K Yamanaka, M.D.
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3907 Waring Rd Ste 2, Oceanside, CA 92056
Phone: 760-941-0221    Fax: 760-941-0905
David G. Antoun, MD
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 4002 Vista Way, Oceanside, CA 92056
Phone: 760-724-8411    
Pratan Vathesatogkit, M.D.
Geriatric Medicine
Medicare: Not Enrolled in Medicare
Practice Location: 3231 Waring Ct, Suite D, Oceanside, CA 92056
Phone: 760-630-4833    Fax: 760-758-1980
Ian B Butler, MD
Geriatric Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 3231 Waring Ct Ste D, Oceanside, CA 92056
Phone: 760-941-0221    Fax: 760-941-0905
Dr. Ronald Hansel Main, M.D.
Geriatric Medicine
Medicare: Medicare Enrolled
Practice Location: 3460 Marron Rd Ste 103-477, Oceanside, CA 92056
Phone: 760-681-8160    
Dr. Christopher Davis, MD
Geriatric Medicine
Medicare: Medicare Enrolled
Practice Location: 200 Mercy Circle, Oceanside, CA 92055
Phone: 760-725-7410    

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.