Dr Caroline Hwang, MD - Medicare Gastroenterology in Los Angeles, CA

Dr Caroline Hwang, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Los Angeles, California. She went to University Of California, Geffen School Of Medicine and graduated in 2005 and has 19 years of diverse experience with area of expertise as Gastroenterology. She is a member of the group practice Hoag Clinic and her current practice location is 1520 San Pablo St, Suite 1000, Los Angeles, California. You can reach out to her office (for appointments etc.) via phone at (323) 442-5100.

Dr Caroline Hwang is licensed to practice in California (license number A108110) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1003090085.

Contact Information

Dr Caroline Hwang, MD
1520 San Pablo St, Suite 1000,
Los Angeles, CA 90033-5310
(323) 442-5100
Not Available

Map and Direction




Physician's Profile

Full NameDr Caroline Hwang
GenderFemale
SpecialityGastroenterology
Experience19 Years
Location1520 San Pablo St, Los Angeles, California
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Caroline Hwang attended and graduated from University Of California, Geffen School Of Medicine in 2005
  NPI Data:
  • NPI Number: 1003090085
  • Provider Enumeration Date: 12/26/2007
  • Last Update Date: 03/10/2016
  Medicare PECOS Information:
  • PECOS PAC ID: 0941374375
  • Enrollment ID: I20121121000477

Medical Identifiers

Medical identifiers for Dr Caroline Hwang such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1003090085NPI-NPPES
W18762OtherCAGROUP MEDICARE
GR0100430OtherCAGROUP MEDI-CAL
1902846306OtherCAGROUP NPI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 245362 (New York)Secondary
207RG0100XInternal Medicine - Gastroenterology A108110 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Hoag Memorial Hospital PresbyterianNewport beach, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Hoag Clinic3274872064268

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 Caroline Hwang allows following entities to bill medicare on her behalf.
Entity NameHoag Clinic
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1942799523
PECOS PAC ID: 3274872064
Enrollment ID: O20190221001936

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 Caroline Hwang 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 Caroline Hwang, MD
Po Box 31309,
Los Angeles, CA 90031-0309

Ph: (323) 442-5100
Dr Caroline Hwang, MD
1520 San Pablo St, Suite 1000,
Los Angeles, CA 90033-5310

Ph: (323) 442-5100

Reviews and Comments


Internal Medicine Doctors in Los Angeles, CA

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David Michael Tellalian, MD
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Dr. Jan B King, M.D., M.P.H.
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Phone: 323-568-8701    
Dr. Jennifer A Fulcher, M.D., PH.D.
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Medicare: Accepting Medicare Assignments
Practice Location: 10833 Le Conte Ave, Chs 37-121, Los Angeles, CA 90095
Phone: 310-825-7225    

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.