Dr John Gregory Markley, MD - Medicare Cardiac Surgery in Columbia, MO

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Dr John Gregory Markley, MD is a medicare enrolled "Thoracic Surgery (cardiothoracic Vascular Surgery)" physician in Columbia, Missouri. He went to Medical College Of Wisconsin and graduated in 1992 and has 32 years of diverse experience with area of expertise as Cardiac Surgery. He is a member of the group practice The Curators Of The University Of Missouri and his current practice location is One Hospital Dr, Columbia, Missouri. You can reach out to his office (for appointments etc.) via phone at (573) 882-6955.

Dr John Gregory Markley is licensed to practice in Missouri (license number 2002023140) 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 1932190980.

Contact Information

Dr John Gregory Markley, MD
One Hospital Dr,
Columbia, MO 65212-0001
(573) 882-6955
(573) 884-0437

Map and Direction




Physician's Profile

Full NameDr John Gregory Markley
GenderMale
SpecialityCardiac Surgery
Experience32 Years
LocationOne Hospital Dr, Columbia, Missouri
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr John Gregory Markley attended and graduated from Medical College Of Wisconsin in 1992
  NPI Data:
  • NPI Number: 1932190980
  • Provider Enumeration Date: 10/31/2005
  • Last Update Date: 03/29/2018
  Medicare PECOS Information:
  • PECOS PAC ID: 9830297464
  • Enrollment ID: I20070606000101

Medical Identifiers

Medical identifiers for Dr John Gregory Markley such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1932190980NPI-NPPES
206064404MedicaidMO
060071382OtherMORAILROAD MEDICARE
P00466151OtherMORAILROAD MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208600000XSurgery G85299 (California)Secondary
208600000XSurgery 34541-020 (Wisconsin)Secondary
208G00000XThoracic Surgery (cardiothoracic Vascular Surgery) 2002023140 (Missouri)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
University Of Missouri Health CareColumbia, MOHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
The Curators Of The University Of Missouri4486759560997

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. Dr John Gregory Markley allows following entities to bill medicare on his behalf.
Entity NameThe Curators Of The University Of Missouri
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1235126921
PECOS PAC ID: 4486759560
Enrollment ID: O20070418000290
Entity NameChas Physician Services Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1629301163
PECOS PAC ID: 7810038064
Enrollment ID: O20100109000194

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. Dr John Gregory Markley 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
Dr John Gregory Markley, MD
Po Box 843966,
Kansas City, MO 64184-3966

Ph: (573) 884-3300		Dr John Gregory Markley, MD
One Hospital Dr,
Columbia, MO 65212-0001

Ph: (573) 882-6955

Reviews and Comments


Thoracic Surgery (Cardiothoracic Vascular Surgery) Doctors in Columbia, MO

Joss D Fernandez, M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Medicare: Accepting Medicare Assignments
Practice Location: 1605 E Broadway Ste 210, Columbia, MO 65201
Phone: 573-815-4130    Fax: 573-815-4135
Normand Robert Caron, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Medicare: Medicare Enrolled
Practice Location: One Hospital Drive, Columbia, MO 65212
Phone: 573-882-6955    Fax: 573-884-0437
Sebastian David Wiesemann, M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Medicare: Accepting Medicare Assignments
Practice Location: 1 Hospital Dr, Mc 413, Columbia, MO 65212
Phone: 573-882-6956    
Andrew A Rich, MD
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Medicare: Not Enrolled in Medicare
Practice Location: 800 Hospital Dr., Harry S. Truman Memorial Veterans Hospital, Columbia, MO 65201
Phone: 573-814-6565    Fax: 573-814-6331
Dr. Richard J Mellitt, M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
Medicare: Accepting Medicare Assignments
Practice Location: 1605 E Broadway Ste 210, Columbia, MO 65201
Phone: 573-815-4130    Fax: 573-815-4135

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.