Dr Young J Ko, MD - Medicare Internal Medicine in Lancaster, CA

Dr Young J Ko, MD is a medicare enrolled "Internal Medicine" physician in Lancaster, California. He graduated from medical school in 1973 and has 51 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Av Critical Care Inc and his current practice location is 44215 15th St West, Suite 303, Lancaster, California. You can reach out to his office (for appointments etc.) via phone at (661) 945-0723.

Dr Young J Ko is licensed to practice in California (license number A39814) 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 1639277130.

Contact Information

Dr Young J Ko, MD
44215 15th St West, Suite 303,
Lancaster, CA 93534
(661) 945-0723
(661) 949-5740

Map and Direction




Physician's Profile

Full NameDr Young J Ko
GenderMale
SpecialityInternal Medicine
Experience51 Years
Location44215 15th St West, Lancaster, 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 Young J Ko graduated from medical school in 1973
  NPI Data:
  • NPI Number: 1639277130
  • Provider Enumeration Date: 09/20/2006
  • Last Update Date: 07/08/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 4880764448
  • Enrollment ID: I20080609000482

Medical Identifiers

Medical identifiers for Dr Young J Ko such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1639277130NPI-NPPES
00A398140MedicaidCA

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0200XInternal Medicine - Critical Care Medicine A39814 (California)Primary
207RP1001XInternal Medicine - Pulmonary Disease A39814 (California)Primary
207R00000XInternal Medicine A39814 (California)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Antelope Valley HospitalLancaster, CAHospital
Palmdale Regional Medical CenterPalmdale, CAHospital

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 Young J Ko allows following entities to bill medicare on his behalf.
Entity NameYoung J. Ko, Md A Medical Corp
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1891919700
PECOS PAC ID: 8325118987
Enrollment ID: O20080609000494
Entity NameAv Critical Care Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1144723800
PECOS PAC ID: 2365706702
Enrollment ID: O20180510001141

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 Young J Ko 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 Young J Ko, MD
44215 15th St West, Suite 303,
Lancaster, CA 93534

Ph: (661) 945-0723
Dr Young J Ko, MD
44215 15th St West, Suite 303,
Lancaster, CA 93534

Ph: (661) 945-0723

Reviews and Comments


Internal Medicine Doctors in Lancaster, CA

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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.