Dr Liam Ghiam, MD, MS in Los Alamitos, CA - Medicare Radiation Oncology

Dr Liam Ghiam, MD, MS is a medicare enrolled "Radiology - Radiation Oncology" physician in Los Alamitos, California. He graduated from medical school in 2003 and has 22 years of diverse experience with area of expertise as Radiation Oncology. He is a member of the group practice Uc Regents Department Of Radiation Oncology and his current practice location is 3951 Katella Ave Ste 102, Los Alamitos, California. You can reach out to his office (for appointments etc.) via phone at (562) 799-3198.

Dr Liam Ghiam is licensed to practice in California (license number A165739) 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 1689123879.

Contact Information

	Dr Liam Ghiam, MD, MS
	3951 Katella Ave Ste 102, Los Alamitos, CA 90720-3303
	(562) 799-3198
	(562) 799-3509

Map and Direction

Physician's Profile

Full Name	Dr Liam Ghiam
Gender	Male
Speciality	Radiation Oncology
Experience	22 Years
Location	3951 Katella Ave Ste 102, Los Alamitos, California
Accepts Medicare Assignments	Yes. 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 Liam Ghiam graduated from medical school in 2003

NPI Data:

NPI Number: 1689123879
Provider Enumeration Date: 09/28/2016
Last Update Date: 07/10/2025

Medicare PECOS Information:

PECOS PAC ID: 8729359864
Enrollment ID: I20200210002780

Medical Identifiers

Medical identifiers for Dr Liam Ghiam such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1689123879	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
2085R0001X	Radiology - Radiation Oncology	A165739 (California)	Primary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
Emanuel Medical Center	Turlock, CA	Hospital
University Of California Irvine Medical Center	Orange, CA	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Uc Regents Department Of Radiation Oncology	7416904214	14

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 Liam Ghiam allows following entities to bill medicare on his behalf.

Entity Name	Stanford Health Care
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1437292927 PECOS PAC ID: 6709797491 Enrollment ID: O20031124000348

Entity Name	Genesiscare Usa Of California A Medical Corporation
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1861472318 PECOS PAC ID: 1456241645 Enrollment ID: O20040319000722

Entity Name	Usc Care Medical Group Inc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1902846306 PECOS PAC ID: 0446157747 Enrollment ID: O20050512000412

Entity Name	Lpch Medical Group Div Of Lucile
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1417907940 PECOS PAC ID: 0840298543 Enrollment ID: O20061113000232

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 Liam Ghiam 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 Address	Practice Location Address
Dr Liam Ghiam, MD, MS 3951 Katella Ave Ste 102, Los Alamitos, CA 90720-3303 Ph: (562) 799-3198	Dr Liam Ghiam, MD, MS 3951 Katella Ave Ste 102, Los Alamitos, CA 90720-3303 Ph: (562) 799-3198

Reviews and Comments

Radiology Doctors in Los Alamitos, CA

Vincent S Polek, MD Radiology Medicare: Accepting Medicare Assignments Practice Location: 3751 Katella Ave, Los Alamitos, CA 90702 Phone: 562-799-3294
George Morrison, DO Radiology Medicare: Accepting Medicare Assignments Practice Location: 3751 Katella Ave, Los Alamitos, CA 90720 Phone: 949-263-8620 Fax: 949-263-1639
Dr. Michael Holmes Secrist, M.D. Radiology Medicare: Accepting Medicare Assignments Practice Location: 3751 Katella Ave, Los Alamitos, CA 90720 Phone: 562-598-1311 Fax: 562-598-0355
Milan Andrus, M.D. Radiology Medicare: Medicare Enrolled Practice Location: 11293 Rochelle St, Los Alamitos, CA 90720 Phone: 562-430-7675
Richard C Shin, MD Radiology Medicare: Accepting Medicare Assignments Practice Location: 3751 Katella Ave, Los Alamitos, CA 90720 Phone: 714-826-6400
Kenneth P Brown, MD Radiology Medicare: Not Enrolled in Medicare Practice Location: 3751 Katella Ave, Los Alamitos, CA 90702 Phone: 714-826-6400
Richard T Pederson, MD Radiology Medicare: Not Enrolled in Medicare Practice Location: 3761 Katella Ave, Los Alamitos Medical Center, Los Alamitos, CA 90720 Phone: 562-799-3294

Dr Liam Ghiam, MD, MS - Medicare Radiation Oncology in Los Alamitos, CA