Margaret Mahaffa, in Walnut Creek, CA - Medicare Emergency Medicine

Margaret Mahaffa, is a medicare enrolled "Emergency Medicine" physician in Walnut Creek, California. Her current practice location is 1425 S Main St, Walnut Creek, California. You can reach out to her office (for appointments etc.) via phone at (925) 295-4000.

Margaret Mahaffa is licensed to practice in California (license number A186494) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1215557426.

Contact Information

	Margaret Mahaffa,
	1425 S Main St, Walnut Creek, CA 94596-5318
	(925) 295-4000
	Not Available

Map and Direction

Physician's Profile

Full Name	Margaret Mahaffa
Gender	Female
Speciality	Emergency Medicine
Location	1425 S Main St, Walnut Creek, California
Accepts Medicare Assignments	Medicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.

NPI Data:

NPI Number: 1215557426
Provider Enumeration Date: 04/17/2020
Last Update Date: 08/02/2023

Medicare PECOS Information:

PECOS PAC ID: 9830553742
Enrollment ID: I20230911004162

Medical Identifiers

Medical identifiers for Margaret Mahaffa such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1215557426	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207P00000X	Emergency Medicine	A186494 (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. Margaret Mahaffa allows following entities to bill medicare on her behalf.

Entity Name	Permanente Medical Group Inc
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1073606299 PECOS PAC ID: 8921910225 Enrollment ID: O20031104000710

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. Margaret Mahaffa 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
Margaret Mahaffa, 1425 S Main St, Walnut Creek, CA 94596-5318 Ph: () -	Margaret Mahaffa, 1425 S Main St, Walnut Creek, CA 94596-5318 Ph: (925) 295-4000

Reviews and Comments

Emergency Medicine Doctors in Walnut Creek, CA

Brook Andrew Woolley, M.D. Emergency Medicine Medicare: Medicare Enrolled Practice Location: 1425 S Main St, Emergency Medicine Department, Walnut Creek, CA 94596 Phone: 925-295-5100
Malcolm C Johnson, MD Emergency Medicine Medicare: Accepting Medicare Assignments Practice Location: 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598 Phone: 925-939-3000
Alice Decker Hunter, M.D. Emergency Medicine Medicare: Not Enrolled in Medicare Practice Location: 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598 Phone: 925-939-3000
Seigfred P. Jalalon, M.D. Emergency Medicine Medicare: Not Enrolled in Medicare Practice Location: 1450 Treat Blvd # 160, Walnut Creek, CA 94597 Phone: 925-296-9000
Theodore Ira Kloth, M.D. Emergency Medicine Medicare: Not Enrolled in Medicare Practice Location: 1601 Ygnacio Valley Rd, Walnut Creek, CA 94598 Phone: 925-939-3000
Stephanie Carlson, MD Emergency Medicine Medicare: Accepting Medicare Assignments Practice Location: 1425 S Main St, Walnut Creek, CA 94596 Phone: 925-295-4000
Michael R. Lozano, MD Emergency Medicine Medicare: Not Enrolled in Medicare Practice Location: 1425 S Main St, Walnut Creek, CA 94596 Phone: 925-295-4000

Margaret Mahaffa, - Medicare Emergency Medicine in Walnut Creek, CA