William R Zimmermann, MD in Rockford, IL

William R Zimmermann, MD is a medicare enrolled "Anesthesiology" physician in Rockford, Illinois. He graduated from medical school in 1989 and has 36 years of diverse experience with area of expertise as Anesthesiology. He is a member of the group practice Rockford Health Physicians and his current practice location is 8201 E Riverside Blvd, Rockford, Illinois. You can reach out to his office (for appointments etc.) via phone at (815) 971-7000.

William R Zimmermann is licensed to practice in Illinois (license number 036089011) 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 1356351845.

Contact Information

	William R Zimmermann, MD
	8201 E Riverside Blvd, Rockford, IL 61114-2300
	(815) 971-7000
	Not Available

Map and Direction

Physician's Profile

Full Name	William R Zimmermann
Gender	Male
Speciality	Anesthesiology
Experience	36 Years
Location	8201 E Riverside Blvd, Rockford, Illinois
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:

William R Zimmermann graduated from medical school in 1989

NPI Data:

NPI Number: 1356351845
Provider Enumeration Date: 08/08/2006
Last Update Date: 04/08/2025

Medicare PECOS Information:

PECOS PAC ID: 2769376607
Enrollment ID: I20040211000504

Medical Identifiers

Medical identifiers for William R Zimmermann such as npi, medicare ID, medicare PIN, medicaid, etc.

Identifier	Type	State	Issuer
1356351845	NPI	-	NPPES

Medical Taxonomies and Licenses

Taxonomy	Type	License (State)	Status
207L00000X	Anesthesiology	036089011 (Illinois)	Primary

Medical Facilities Affiliation

Facility Name	Location	Facility Type
Javon Bea Hospital	Rockford, IL	Hospital
Presence Mercy Medical Center	Aurora, IL	Hospital

Group Practice Association

Group Practice Name	Group PECOS PAC ID	No. of Members
Rockford Health Physicians	2567374036	362

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 R Zimmermann allows following entities to bill medicare on his behalf.

Entity Name	Rockford Health Physicians
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1043242886 PECOS PAC ID: 2567374036 Enrollment ID: O20031103000584

Entity Name	Central Dupage Physician Group
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1033149844 PECOS PAC ID: 5890696231 Enrollment ID: O20040303000601

Entity Name	Valley Pain Care Centers, Ltd
Entity Type	Part B Supplier - Clinic/group Practice
Entity Identifiers	NPI Number: 1194722058 PECOS PAC ID: 7517858632 Enrollment ID: O20040320000066

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 R Zimmermann 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 R Zimmermann, MD 29624 Network Pl, Chicago, IL 60673-1296 Ph: (608) 756-6278	William R Zimmermann, MD 8201 E Riverside Blvd, Rockford, IL 61114-2300 Ph: (815) 971-7000

Reviews and Comments

Anesthesiology Doctors in Rockford, IL

Dr. Liza A Dafchahi Shirani, MD Anesthesiology Medicare: Accepting Medicare Assignments Practice Location: 5875 E Riverside Blvd, Rockford, IL 61114 Phone: 815-398-9491 Fax: 815-381-7498
Dr. William B Weems, MD Anesthesiology Medicare: Accepting Medicare Assignments Practice Location: 5875 E Riverside Blvd, Rockford, IL 61114 Phone: 815-398-9491 Fax: 815-381-7498
Mark J. Kellen, MD Anesthesiology Medicare: Accepting Medicare Assignments Practice Location: 5875 E Riverside Blvd, Rockford, IL 61114 Phone: 815-398-9491 Fax: 815-381-7498
Alan G Mowbray, MD Anesthesiology Medicare: Not Enrolled in Medicare Practice Location: 2400 N Rockton Ave, Rockford, IL 61103 Phone: 815-971-4000
John N. Edwards, MD Anesthesiology Medicare: Accepting Medicare Assignments Practice Location: 6785 Weaver Rd, Suite D, Rockford, IL 61114 Phone: 815-633-8545
Dr. Vishrut P. Naik, MD Anesthesiology Medicare: Accepting Medicare Assignments Practice Location: 5875 E Riverside Blvd, Rockford, IL 61114 Phone: 815-398-9491
Adam Soliman, DO Anesthesiology Medicare: Accepting Medicare Assignments Practice Location: 5875 E Riverside Blvd, Rockford, IL 61114 Phone: 815-398-9491 Fax: 815-381-7498

William R Zimmermann, MD - Medicare Anesthesiology in Rockford, IL