Leonard T Oneill, MD - Medicare Internal Medicine in Kalamazoo, MI

Leonard T Oneill, MD is a medicare enrolled "Internal Medicine" physician in Kalamazoo, Michigan. His current practice location is 535 S Burdick St, Kalamazoo, Michigan. You can reach out to his office (for appointments etc.) via phone at (269) 341-8822.

Leonard T Oneill is licensed to practice in Michigan (license number 4301046136) 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 1215907787.

Contact Information

Leonard T Oneill, MD
535 S Burdick St,
Kalamazoo, MI 49007-5294
(269) 341-8822
(269) 341-7518

Map and Direction




Physician's Profile

Full NameLeonard T Oneill
GenderMale
SpecialityInternal Medicine
Location535 S Burdick St, Kalamazoo, Michigan
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1215907787
  • Provider Enumeration Date: 01/25/2006
  • Last Update Date: 10/16/2014
  Medicare PECOS Information:
  • PECOS PAC ID: 9436280120
  • Enrollment ID: I20100624000163

Medical Identifiers

Medical identifiers for Leonard T Oneill such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1215907787NPI-NPPES
1215907787MedicaidMI
3244331MedicaidMI
1417961137OtherMIBCBSM - BMH
CA4396OtherMIRAILROAD MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 4301046136 (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. Leonard T Oneill allows following entities to bill medicare on his behalf.
Entity NameBronson Methodist Hospital
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1417961137
PECOS PAC ID: 0244148633
Enrollment ID: O20031208000832

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. Leonard T Oneill 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
Leonard T Oneill, MD
535 S Burdick St,
Kalamazoo, MI 49007-5294

Ph: (269) 341-8822
Leonard T Oneill, MD
535 S Burdick St,
Kalamazoo, MI 49007-5294

Ph: (269) 341-8822

Reviews and Comments


Internal Medicine Doctors in Kalamazoo, MI

Dr. Eric S Shay, M.D.
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Phone: 269-381-5060    Fax: 269-381-1655
Michael Trexler,
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Phone: 269-373-1222    Fax: 269-373-6270
Desmonda Brady Wixson, MD
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Dr. Kevin L. Beyer, D.O.
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Phone: 269-385-9900    Fax: 269-385-2140
Ernest Lee Yoder, MD
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Practice Location: 1000 Oakland Dr, Kalamazoo, MI 49008
Phone: 269-337-6300    
Valerie Siqueira Duhn, MD
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Medicare: Accepting Medicare Assignments
Practice Location: 521 E. Michigan Ave, Ste 201, Kalamazoo, MI 49007
Phone: 269-349-6759    Fax: 369-349-7450

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

Our Data: Information on www.medicarelist.com is built using data sources published by Centers for Medicare & Medicaid Services (CMS) under Freedom of Information Act (FOIA). The information disclosed on the NPI Registry are FOIA-disclosable and are required to be disclosed under the FOIA and the eFOIA amendments to the FOIA. There is no way to 'opt out' or 'suppress' the NPPES record data for health care providers with active NPIs.