William Marc Katz, MD - Medicare Internal Medicine in Wyoming, MI

William Marc Katz, MD is a medicare enrolled "Internal Medicine - Sleep Medicine" physician in Wyoming, Michigan. His current practice location is 2093 Health Dr Sw, Ste 200, Wyoming, Michigan. You can reach out to his office (for appointments etc.) via phone at (616) 459-3158.

William Marc Katz is licensed to practice in Michigan (license number 4301044867) 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 1013024140.

Contact Information

William Marc Katz, MD
2093 Health Dr Sw, Ste 200,
Wyoming, MI 49519
(616) 459-3158
(616) 819-2222



Physician's Profile

Full NameWilliam Marc Katz
GenderMale
SpecialityInternal Medicine - Sleep Medicine
Location2093 Health Dr Sw, Wyoming, Michigan
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1013024140
  • Provider Enumeration Date: 08/24/2006
  • Last Update Date: 06/22/2010
  Medicare PECOS Information:
  • PECOS PAC ID: 8527074376
  • Enrollment ID: I20061219000423

Medical Identifiers

Medical identifiers for William Marc Katz such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1013024140NPI-NPPES
1104106031OtherMIBCBS OF MICHIGAN
38-2145264OtherIRS TAX ID# THRU CORP
1896734MedicaidMI

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RC0200XInternal Medicine - Critical Care Medicine 4301044867 (Michigan)Secondary
207RP1001XInternal Medicine - Pulmonary Disease 4301044867 (Michigan)Secondary
207RS0012XInternal Medicine - Sleep Medicine 4301044867 (Michigan)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 Marc Katz allows following entities to bill medicare on his behalf.
Entity NameAscension Medical Group Promed
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1497709869
PECOS PAC ID: 7315856077
Enrollment ID: O20031216000478

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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 Marc Katz 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 AddressPractice Location Address
William Marc Katz, MD
1900 Wealthy St Se, Ste 150,
Grand Rapids, MI 49506-2969

Ph: (616) 459-3158
William Marc Katz, MD
2093 Health Dr Sw, Ste 200,
Wyoming, MI 49519

Ph: (616) 459-3158

News Archive

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Study shows association between chemotherapy benefit and menopausal status in breast cancer patients

After a median follow-up of 5.1 years, among women with lymph node-positive early-stage breast cancer and a recurrence score of 25 or lower who received adjuvant endocrine therapy with or without chemotherapy, postmenopausal patients had no added benefit from chemotherapy, while premenopausal patients who received chemotherapy had improved invasive disease-free survival (IDFS) and an early indication of improved overall survival (OS), according to data from the SWOG S1007 RxPONDER clinical trial presented at the 2020 San Antonio Breast Cancer Symposium, held Dec. 8-11.

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Internal Medicine Doctors in Wyoming, MI

Mark J Tieszen, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 5900 Byron Center Ave Sw, Wyoming, MI 49519
Phone: 616-252-7200    
Dr. Matthew J Spousta, DO
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 5900 Byron Center Ave Sw, Wyoming, MI 49519
Phone: 616-252-7200    Fax: 616-252-4953
Dr. Srinivas Reddy Mummadi, MBBS
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 2122 Health Dr Sw, Wyoming, MI 49519
Phone: 616-252-5220    Fax: 616-252-5770
Kurt Koepnick, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 6105 Wilson Ave Sw, Suite 202, Wyoming, MI 49418
Phone: 616-267-7220    
Dr. John Allen Key, DO
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 5900 Byron Center Ave Sw, Wyoming, MI 49519
Phone: 616-241-2333    Fax: 616-452-6767
Danielle Light, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 5900 Byron Center Ave Sw, Wyoming, MI 49519
Phone: 616-252-7200    

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