Dr Otto Liao, MD - Medicare Allergy/immunology in Tustin, CA

Dr Otto Liao, MD is a medicare enrolled "Allergy & Immunology" physician in Tustin, California. He graduated from medical school in 1997 and has 27 years of diverse experience with area of expertise as Allergy/immunology. His current practice location is 1076 E 1st St Ste B, Tustin, California. You can reach out to his office (for appointments etc.) via phone at (714) 838-2617.

Dr Otto Liao is licensed to practice in California (license number A068959) and he also participates in the medicare program. He may accept medicare assignments (which means he may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and his NPI Number is 1225042674.

Contact Information

Dr Otto Liao, MD
1076 E 1st St Ste B,
Tustin, CA 92780-3852
(714) 838-2617
Not Available

Map and Direction




Physician's Profile

Full NameDr Otto Liao
GenderMale
SpecialityAllergy/immunology
Experience27 Years
Location1076 E 1st St Ste B, Tustin, California
Accepts Medicare AssignmentsMay be. He may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr Otto Liao graduated from medical school in 1997
  NPI Data:
  • NPI Number: 1225042674
  • Provider Enumeration Date: 07/28/2006
  • Last Update Date: 10/06/2020
  Medicare PECOS Information:
  • PECOS PAC ID: 0840261699
  • Enrollment ID: I20040804001003

Medical Identifiers

Medical identifiers for Dr Otto Liao such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1225042674NPI-NPPES
11465065OtherCACAQH

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RA0201XInternal Medicine - Allergy & Immunology A068959 (California)Secondary
2080P0201XPediatrics - Pediatric Allergy/immunology A068959 (California)Secondary
207K00000XAllergy & Immunology A068959 (California)Primary

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 Otto Liao allows following entities to bill medicare on his behalf.
Entity NameTlc Allergy And Asthma Associates, Inc.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1003820770
PECOS PAC ID: 4183622533
Enrollment ID: O20061117000492

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 Otto Liao 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 Otto Liao, MD
1076 E 1st St Ste B,
Tustin, CA 92780-3852

Ph: (714) 838-2617
Dr Otto Liao, MD
1076 E 1st St Ste B,
Tustin, CA 92780-3852

Ph: (714) 838-2617

Reviews and Comments


Allergy & Immunology Doctors in Tustin, CA

Dr. Arthur Turk, MD
Allergy & Immunology
Medicare: Not Enrolled in Medicare
Practice Location: 1101 Bryan Ave, Suite B, Tustin, CA 92780
Phone: 714-838-2617    Fax: 714-838-2640

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.