Stephen C Koesters, MD - Medicare Internal Medicine in Columbus, OH

Stephen C Koesters, MD is a medicare enrolled "Internal Medicine" physician in Columbus, Ohio. He went to Ohio State University College Of Medicine and graduated in 1998 and has 26 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Osu Internal Medicine Llc, Osu General Internal Medicine Llc and his current practice location is 895 Yard St, Columbus, Ohio. You can reach out to his office (for appointments etc.) via phone at (614) 293-5123.

Stephen C Koesters is licensed to practice in Ohio (license number 35077058) 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 1659350783.

Contact Information

Stephen C Koesters, MD
895 Yard St,
Columbus, OH 43212-3886
(614) 293-5123
(614) 293-4890

Map and Direction




Physician's Profile

Full NameStephen C Koesters
GenderMale
SpecialityInternal Medicine
Experience26 Years
Location895 Yard St, Columbus, Ohio
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:
  • Stephen C Koesters attended and graduated from Ohio State University College Of Medicine in 1998
  NPI Data:
  • NPI Number: 1659350783
  • Provider Enumeration Date: 01/17/2006
  • Last Update Date: 01/26/2021
  Medicare PECOS Information:
  • PECOS PAC ID: 6507826492
  • Enrollment ID: I20041014001039

Medical Identifiers

Medical identifiers for Stephen C Koesters such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1659350783NPI-NPPES
2324685MedicaidOH

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
208000000XPediatrics 35077058 (Ohio)Secondary
207R00000XInternal Medicine 35077058 (Ohio)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Ohio State University State Health SystemColumbus, OHHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Osu Internal Medicine Llc5496651408994
Osu General Internal Medicine Llc7517103955237

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. Stephen C Koesters allows following entities to bill medicare on his behalf.
Entity NameOsu Internal Medicine Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1740231448
PECOS PAC ID: 5496651408
Enrollment ID: O20031210000658
Entity NameOsu General Internal Medicine Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1689919599
PECOS PAC ID: 7517103955
Enrollment ID: O20130409000603

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. Stephen C Koesters 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
Stephen C Koesters, MD
700 Ackerman Rd Ste 2120,
Columbus, OH 43202-1559

Ph: (614) 293-2594
Stephen C Koesters, MD
895 Yard St,
Columbus, OH 43212-3886

Ph: (614) 293-5123

Reviews and Comments


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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.