Keith Chunyen Hsu, MD - Medicare Internal Medicine in Mission Viejo, CA

Keith Chunyen Hsu, MD is a medicare enrolled "Hospitalist" physician in Mission Viejo, California. He went to Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University and graduated in 2008 and has 16 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Providence Medical Foundation and his current practice location is 26800 Crown Valley Pkwy, Suite 305, Mission Viejo, California. You can reach out to his office (for appointments etc.) via phone at (949) 364-6000.

Keith Chunyen Hsu is licensed to practice in California (license number A110787C) 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 1891921458.

Contact Information

Keith Chunyen Hsu, MD
26800 Crown Valley Pkwy, Suite 305,
Mission Viejo, CA 92691-6384
(949) 364-6000
(949) 367-0518

Map and Direction




Physician's Profile

Full NameKeith Chunyen Hsu
GenderMale
SpecialityInternal Medicine
Experience16 Years
Location26800 Crown Valley Pkwy, Mission Viejo, 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:
  • Keith Chunyen Hsu attended and graduated from Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University in 2008
  NPI Data:
  • NPI Number: 1891921458
  • Provider Enumeration Date: 06/09/2009
  • Last Update Date: 10/28/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 7012189210
  • Enrollment ID: I20111012000521

Medical Identifiers

Medical identifiers for Keith Chunyen Hsu such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1891921458NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208M00000XHospitalist A110787C (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Mission Hospital Regional Med CenterMission viejo, CAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Providence Medical Foundation89219932051312

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. Keith Chunyen Hsu allows following entities to bill medicare on his behalf.
Entity NameProvidence Medical Foundation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285890624
PECOS PAC ID: 8921993205
Enrollment ID: O20040216001346

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. Keith Chunyen Hsu 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
Keith Chunyen Hsu, MD
26800 Crown Valley Pkwy Ste 305,
Mission Viejo, CA 92691-8017

Ph: (949) 364-6000
Keith Chunyen Hsu, MD
26800 Crown Valley Pkwy, Suite 305,
Mission Viejo, CA 92691-6384

Ph: (949) 364-6000

Reviews and Comments


Hospitalist Doctors in Mission Viejo, CA

Dr. Sina Neshatian, M.D.
Hospitalist
Medicare: Accepting Medicare Assignments
Practice Location: 26800 Crown Valley Pkwy, Suite 315, Mission Viejo, CA 92691
Phone: 949-364-6000    Fax: 949-364-1204

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.