William F Simmons, MD in San Francisco, CA - Medicare Internal Medicine

William F Simmons, MD is a medicare enrolled "Internal Medicine - Infectious Disease" physician in San Francisco, California. His current practice location is 400 Parnassus Ave # 336, San Francisco, California. You can reach out to his office (for appointments etc.) via phone at (415) 353-2626.

William F Simmons is licensed to practice in California (license number A186895) 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 1326537721.

Contact Information

	William F Simmons, MD
	400 Parnassus Ave # 336, San Francisco, CA 94143-2202
	(415) 353-2626
	(415) 353-3528

Map and Direction

Physician's Profile

Full Name	William F Simmons
Gender	Male
Speciality	Internal Medicine - Infectious Disease
Location	400 Parnassus Ave # 336, 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: 1326537721
Provider Enumeration Date: 05/02/2018
Last Update Date: 08/07/2023

Medicare PECOS Information:

PECOS PAC ID: 7719238492
Enrollment ID: I20230719003894

Medical Identifiers

Medical identifiers for William F Simmons such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1326537721	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207RI0200X	Internal Medicine - Infectious Disease	A186895 (California)	Primary

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 F Simmons allows following entities to bill medicare on his behalf.

Entity Name	Regents Of The University Of California
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1881763597 PECOS PAC ID: 4284547274 Enrollment ID: O20031106000389

Entity Name	University Of California San Francisco
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1861578973 PECOS PAC ID: 4486567229 Enrollment ID: O20031212000897

Entity Name	Ucsf Medical Group Business Services
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1477624104 PECOS PAC ID: 3779497870 Enrollment ID: O20040622001513

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 F Simmons 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 F Simmons, MD 400 Parnassus Ave # 336, San Francisco, CA 94143-2202 Ph: (415) 353-2626	William F Simmons, MD 400 Parnassus Ave # 336, San Francisco, CA 94143-2202 Ph: (415) 353-2626

Reviews and Comments

Internal Medicine Doctors in San Francisco, CA

Dr. Shannon Walker, Infectious Disease Medicare: Medicare Enrolled Practice Location: 112 Parnassus Ave Apt 4, San Francisco, CA 94117 Phone: 571-271-8343
Dr. Pratyusha Kishore Narra, MBBS Infectious Disease Medicare: Accepting Medicare Assignments Practice Location: 3490 California St, San Francisco, CA 94118 Phone: 415-514-6200 Fax: 415-514-6410
Dr. Chelsea Joy Thomsen, M.D., M.S.P.H Infectious Disease Medicare: Accepting Medicare Assignments Practice Location: 2 W Portal Ave, San Francisco, CA 94127 Phone: 415-291-0480
Christine Soran, Infectious Disease Medicare: Medicare Enrolled Practice Location: 1001 Potrero Ave, Bldg 10, 3rd Floor, Ward 13, Ucsf Division Of General Internal Medicine Sfgh, San Francisco, CA 94110 Phone: 415-206-5164 Fax: 415-206-5586
Stephen Norris Cohen, MD Infectious Disease Medicare: Not Enrolled in Medicare Practice Location: 40 Ventura Ave, San Francisco, CA 94116 Phone: 415-681-2171 Fax: 415-681-2171
Mauricio Jalife Bucay, M.D Infectious Disease Medicare: Accepting Medicare Assignments Practice Location: 505 Parnassus Ave, San Francisco, CA 94143 Phone: 415-750-4994 Fax: 415-750-8156
Dr. Adriana A.t. Martin, M.D., PH.D. Infectious Disease Medicare: Medicare Enrolled Practice Location: 505 Parnassus Ave, San Francisco, CA 94143 Phone: 415-514-7288

William F Simmons, MD - Medicare Internal Medicine in San Francisco, CA