Dr Brian Arellano Reyes, MD in Brentwood, CA

Dr Brian Arellano Reyes, MD is a medicare enrolled "Internal Medicine" physician in Brentwood, California. He graduated from medical school in 1989 and has 36 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Bass Medical Group and his current practice location is 6600 Lone Tree Way Ste B, Brentwood, California. You can reach out to his office (for appointments etc.) via phone at (925) 276-9908.

Dr Brian Arellano Reyes is licensed to practice in California (license number A73587) 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 1972574739.

Contact Information

	Dr Brian Arellano Reyes, MD
	6600 Lone Tree Way Ste B, Brentwood, CA 94513-5256
	(925) 276-9908
	(925) 276-9893

Map and Direction

Physician's Profile

Full Name	Dr Brian Arellano Reyes
Gender	Male
Speciality	Internal Medicine
Experience	36 Years
Location	6600 Lone Tree Way Ste B, Brentwood, 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 Brian Arellano Reyes graduated from medical school in 1989

NPI Data:

NPI Number: 1972574739
Provider Enumeration Date: 01/30/2006
Last Update Date: 06/27/2025

Medicare PECOS Information:

PECOS PAC ID: 3678514551
Enrollment ID: I20050520000534

Medical Identifiers

Medical identifiers for Dr Brian Arellano Reyes such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1972574739	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207R00000X	Internal Medicine	A73587 (California)	Primary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
John Muir Medical Center - Concord Campus	Concord, CA	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Bass Medical Group	9032111281	279

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 Brian Arellano Reyes allows following entities to bill medicare on his behalf.

Entity Name	Bass Medical Group
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1174253405 PECOS PAC ID: 9032111281 Enrollment ID: O20070201000181

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 Brian Arellano Reyes 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 Brian Arellano Reyes, MD 6600 Lone Tree Way, Brentwood, CA 94513-5256 Ph: (925) 276-9908	Dr Brian Arellano Reyes, MD 6600 Lone Tree Way Ste B, Brentwood, CA 94513-5256 Ph: (925) 276-9908

Reviews and Comments

Internal Medicine Doctors in Brentwood, CA

Matthew Campbell, M.D. Internal Medicine Medicare: Medicare Enrolled Practice Location: 350 John Muir Pkwy, Suite 105, Brentwood, CA 94564 Phone: 925-753-1986
Joline Heo, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 1120 2nd St, Suite A, Brentwood, CA 94513 Phone: 925-513-2483
Yogesh Kumar Trehan, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 100 Cortona Way, Suite 140, Brentwood, CA 94513 Phone: 925-516-4488 Fax: 925-516-4545
William Wung, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 2400 Balfour Rd Ste 201, Brentwood, CA 94513 Phone: 925-308-8120 Fax: 925-513-2650
Ms. Sherry Reynolds Albrink, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 3291 Walnut Blvd, Suite 100, Brentwood, CA 94513 Phone: 925-513-9495 Fax: 925-626-3782
Walter Savage, MD Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 350 John Muir Pkwy, Suite 285, Brentwood, CA 94513 Phone: 925-513-2646 Fax: 925-513-2650
Dr. Ramakrishna P. Gollapudi, M.D. Internal Medicine Medicare: Accepting Medicare Assignments Practice Location: 350 John Muir Pkwy Ste 175, Brentwood, CA 94513 Phone: 925-756-3400 Fax: 510-506-7727

Dr Brian Arellano Reyes, MD - Medicare Internal Medicine in Brentwood, CA