William Thomas Halsey, MD in San Francisco, CA

William Thomas Halsey, MD is a medicare enrolled "Anesthesiology" physician in San Francisco, California. His current practice location is 3700 California St, San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (415) 719-0000.

William Thomas Halsey is licensed to practice in California (license number C37471) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1295775237.

Contact Information

	William Thomas Halsey, MD
	3700 California St, San Francisco, CA 94118-1618
	(415) 719-0000
	Not Available

Map and Direction

Physician's Profile

Full Name	William Thomas Halsey
Gender	Male
Speciality	Anesthesiology
Location	3700 California St, San Francisco, California
Accepts Medicare Assignments	Medicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.

NPI Data:

NPI Number: 1295775237
Provider Enumeration Date: 06/07/2006
Last Update Date: 07/11/2007

Medicare PECOS Information:

PECOS PAC ID: 6305905704
Enrollment ID: I20081029000881

Medical Identifiers

Medical identifiers for William Thomas Halsey such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1295775237	NPI	-	NPPES
00C374710	Medicaid	CA

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207L00000X	Anesthesiology	C37471 (California)	Primary
207LP2900X	Anesthesiology - Pain Medicine	C37471 (California)	Secondary

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. William Thomas Halsey allows following entities to bill medicare on his behalf.

Entity Name	Northern California Anesthesia
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1871541649 PECOS PAC ID: 2163410770 Enrollment ID: O20040503001551

Entity Name	Anesthesia Care Associates Medical Group, Inc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1215985023 PECOS PAC ID: 1850334384 Enrollment ID: O20050606001171

Entity Name	Brookwood Anesthesia Inc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1225811623 PECOS PAC ID: 1850741042 Enrollment ID: O20231229002945

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. William Thomas Halsey 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
William Thomas Halsey, MD Po Box 39000, Dept 33995, San Francisco, CA 94139-0001 Ph: (503) 372-2740	William Thomas Halsey, MD 3700 California St, San Francisco, CA 94118-1618 Ph: (415) 719-0000

Reviews and Comments

Anesthesiology Doctors in San Francisco, CA

Dr. Taylor Bergh Bucyk, MD Anesthesiology Medicare: Medicare Enrolled Practice Location: 1001 Potrero Ave # 3c38, San Francisco, CA 94110 Phone: 628-206-8000
Dr. Celine Marie Madeleine Gonzalez, MD Anesthesiology Medicare: Accepting Medicare Assignments Practice Location: 1305 Waller St, San Francisco, CA 94117 Phone: 415-640-9777
David Howard Irwin, MD Anesthesiology Medicare: Accepting Medicare Assignments Practice Location: 3700 California St, San Francisco, CA 94118 Phone: 415-719-0000
Steven Gary Vitcov, MD Anesthesiology Medicare: Accepting Medicare Assignments Practice Location: 3700 California St, San Francisco, CA 94118 Phone: 415-719-0000
Merlin D Larson, MD Anesthesiology Medicare: Not Enrolled in Medicare Practice Location: 1600 Divisadero St, San Francisco, CA 94143 Phone: 415-885-7412 Fax: 415-885-7284
Chris Abrecht, M.D. Anesthesiology Medicare: Accepting Medicare Assignments Practice Location: 2255 Post Street, San Francisco, CA 94115 Phone: 415-885-7246 Fax: 415-885-7575
Sam Sheng Shay, MD Anesthesiology Medicare: Medicare Enrolled Practice Location: 3700 California St, San Francisco, CA 94118 Phone: 415-719-0000

William Thomas Halsey, MD - Medicare Anesthesiology in San Francisco, CA