Gustavo A Diaz, MD in Redwood City, CA - Medicare Emergency Medicine

Gustavo A Diaz, MD is a medicare enrolled "Emergency Medicine" physician in Redwood City, California. He went to University Of Texas Medical Branch At Galveston and graduated in 1982 and has 44 years of diverse experience with area of expertise as Emergency Medicine. He is a member of the group practice American Current Care Of California A Medical Corporation, Doctors On Duty Medical Group, Inc and his current practice location is 830 Jefferson Ave, Redwood City, California. You can reach out to his office (for appointments etc.) via phone at (650) 381-0616.

Gustavo A Diaz is licensed to practice in California (license number C54872) 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 1538122635.

Contact Information

	Gustavo A Diaz, MD
	830 Jefferson Ave, Redwood City, CA 94063-1804
	(650) 381-0616
	Not Available

Map and Direction

Physician's Profile

Full Name	Gustavo A Diaz
Gender	Male
Speciality	Emergency Medicine
Experience	44 Years
Location	830 Jefferson Ave, Redwood City, 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:

Gustavo A Diaz attended and graduated from University Of Texas Medical Branch At Galveston in 1982

NPI Data:

NPI Number: 1538122635
Provider Enumeration Date: 04/10/2006
Last Update Date: 03/16/2026

Medicare PECOS Information:

PECOS PAC ID: 1254374713
Enrollment ID: I20111213000435

Medical Identifiers

Medical identifiers for Gustavo A Diaz such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1538122635	NPI	-	NPPES
000000006706	Other	MA	BMC
04-3329195	Other	MA	NORTH AMERICAN PREFERRED
04-3329195	Other	MA	GREAT-WEST
102531	Other	MA	CIGNA
2359897	Other	MA	AETNA
04-3329195	Other	MA	PHCS
04-3329195	Other	MA	UNICARE/GIC
04-3329195	Other	MA	NORTHEAST HEALTHCARE ALLI
04-3329195	Other	MA	NORTHEAST HEALTH DIRECT
04-3329195	Other	MA	PLAN VISTA
053006	Other	MA	TUFTS
24922	Other	MA	HEALTH NEW ENGLAND
3000915	Medicaid	MA
438822	Other	MA	HARVARD PILGRIM
632919	Other	MA	CONNECTICARE
J08576	Other	MA	BCBS MA
04-3329195	Other	MA	CONSOLIDATED

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207P00000X	Emergency Medicine	C54872 (California)	Primary
207P00000X	Emergency Medicine	53006 (Massachusetts)	Secondary

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
American Current Care Of California A Medical Corporation	5799854303	142
Doctors On Duty Medical Group, Inc	2466366703	68

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. Gustavo A Diaz allows following entities to bill medicare on his behalf.

Entity Name	Pinnacle Medical Group, Inc.
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1669557930 PECOS PAC ID: 8921081076 Enrollment ID: O20040609001432

Entity Name	American Current Care Of California A Medical Corporation
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1750573622 PECOS PAC ID: 5799854303 Enrollment ID: O20080522000420

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. Gustavo A Diaz 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
Gustavo A Diaz, MD 100 Wilson Rd Ste 100, Monterey, CA 93940-7885 Ph: (831) 649-1000	Gustavo A Diaz, MD 830 Jefferson Ave, Redwood City, CA 94063-1804 Ph: (650) 381-0616

Reviews and Comments

Emergency Medicine Doctors in Redwood City, CA

Sean Edwin Bourke, M.D Emergency Medicine Medicare: Not Enrolled in Medicare Practice Location: 170 Alameda De Las Pulgas, Redwood City, CA 94062 Phone: 650-369-5811
Kirsten M. Stewart, MD Emergency Medicine Medicare: Not Enrolled in Medicare Practice Location: 1150 Veterans Blvd, Redwood City, CA 94063 Phone: 650-299-2000
Andrea G. Roberts, MD Emergency Medicine Medicare: Medicare Enrolled Practice Location: 1150 Veterans Blvd, Redwood City, CA 94063 Phone: 650-299-2000
George Bulloch Iii, MD Emergency Medicine Medicare: Not Enrolled in Medicare Practice Location: 1150 Veterans Blvd, Redwood City, CA 94063 Phone: 650-299-2000
Adam J. Landsdorf, MD Emergency Medicine Medicare: Accepting Medicare Assignments Practice Location: 1150 Veterans Blvd, Redwood City, CA 94063 Phone: 650-299-2000
My Tuyet Tran, MD Emergency Medicine Medicare: Medicare Enrolled Practice Location: 1100 Veterans Blvd, Redwood City, CA 94063 Phone: 650-299-2000
Frank Ruiz, MD Emergency Medicine Medicare: Accepting Medicare Assignments Practice Location: 1150 Veterans Blvd, Redwood City, CA 94063 Phone: 650-299-2000

Gustavo A Diaz, MD - Medicare Emergency Medicine in Redwood City, CA