Lisa Hertz, MD in Los Alamitos, CA - Medicare Gastroenterology

Lisa Hertz, MD is a medicare enrolled "Internal Medicine - Gastroenterology" physician in Los Alamitos, California. She went to Harvard Medical School and graduated in 1984 and has 41 years of diverse experience with area of expertise as Gastroenterology. She is a member of the group practice Comprehensive Gi Care A Professional Medical Group Inc and her current practice location is 4772 Katella Ave, #200, Los Alamitos, California. You can reach out to her office (for appointments etc.) via phone at (562) 596-5552.

Lisa Hertz is licensed to practice in California (license number G59291) 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 1639237720.

Contact Information

	Lisa Hertz, MD
	4772 Katella Ave, #200, Los Alamitos, CA 90720-2600
	(562) 596-5552
	(562) 596-5340

Map and Direction

Physician's Profile

Full Name	Lisa Hertz
Gender	Female
Speciality	Gastroenterology
Experience	41 Years
Location	4772 Katella Ave, Los Alamitos, California
Accepts Medicare Assignments	Yes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.

Medical Education and Training:

Lisa Hertz attended and graduated from Harvard Medical School in 1984

NPI Data:

NPI Number: 1639237720
Provider Enumeration Date: 12/04/2006
Last Update Date: 08/13/2025

Medicare PECOS Information:

PECOS PAC ID: 1052350915
Enrollment ID: I20050502000315

Medical Identifiers

Medical identifiers for Lisa Hertz such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1639237720	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207RG0100X	Internal Medicine - Gastroenterology	G59291 (California)	Primary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
Los Alamitos Medical Center	Los alamitos, CA	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Comprehensive Gi Care A Professional Medical Group Inc	7810942000	3

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. Lisa Hertz allows following entities to bill medicare on her behalf.

Entity Name	Comprehensive Gi Care A Professional Medical Group Inc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1952564965 PECOS PAC ID: 7810942000 Enrollment ID: O20050321000940

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. Lisa Hertz 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
Lisa Hertz, MD 4772 Katella Ave, #200, Los Alamitos, CA 90720-2600 Ph: (562) 596-5552	Lisa Hertz, MD 4772 Katella Ave, #200, Los Alamitos, CA 90720-2600 Ph: (562) 596-5552

Reviews and Comments

Internal Medicine Doctors in Los Alamitos, CA

Moustafa Moataz Aboshady, M.D. Gastroenterology Medicare: Not Enrolled in Medicare Practice Location: 3751 Katella Ave, Los Alamitos, CA 90720 Phone: 928-854-9603
Dr. Jyoti Manohar Bakhru, M.D. Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 3460 Katella Ave, Los Alamitos, CA 90720 Phone: 562-594-6599 Fax: 562-598-6220
Sarah Lynn Sandell, MD Gastroenterology Medicare: Not Enrolled in Medicare Practice Location: 3742 Katella Ave, Suite 302, Los Alamitos, CA 90720 Phone: 562-936-0292 Fax: 562-936-1943
Dr. Steven T. Forman, M.D. Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 5300 Katella Ave, Los Alamitos, CA 90720 Phone: 562-430-7533 Fax: 562-430-8055
Carlos Arguedas, Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 5300 Katella Ave, Los Alamitos, CA 90720 Phone: 562-429-1200 Fax: 562-429-8070
Dr. Minh Tue Huynh, M.D. Gastroenterology Medicare: Not Enrolled in Medicare Practice Location: 3801 Katella Ave, Suite 207, Los Alamitos, CA 90720 Phone: 562-598-9745 Fax: 562-598-0355
Dr. Omid Vahdat, M.D. Gastroenterology Medicare: Accepting Medicare Assignments Practice Location: 3801 Katella Ave, Suite 310, Los Alamitos, CA 90720 Phone: 562-598-0604 Fax: 562-598-1649

Lisa Hertz, MD - Medicare Gastroenterology in Los Alamitos, CA