Dr Mark J Hornyak, MD - Medicare Neurology in Cooperstown, NY

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Dr Mark J Hornyak, MD is a medicare enrolled "Neurological Surgery" physician in Cooperstown, New York. He went to University Of Maryland School Of Medicine and graduated in 2000 and has 24 years of diverse experience with area of expertise as Neurology. He is a member of the group practice Hartford Healthcare Medical Group Specialists Pllc and his current practice location is 1 Atwell Rd, Cooperstown, New York. You can reach out to his office (for appointments etc.) via phone at (607) 547-3334.

Dr Mark J Hornyak is licensed to practice in Connecticut (license number 62295) 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 1124226394.

Contact Information

Dr Mark J Hornyak, MD
1 Atwell Rd,
Cooperstown, NY 13326-1301
(607) 547-3334
(607) 547-4067

Map and Direction




Physician's Profile

Full NameDr Mark J Hornyak
GenderMale
SpecialityNeurology
Experience24 Years
Location1 Atwell Rd, Cooperstown, New York
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 Mark J Hornyak attended and graduated from University Of Maryland School Of Medicine in 2000
  NPI Data:
  • NPI Number: 1124226394
  • Provider Enumeration Date: 07/10/2007
  • Last Update Date: 02/13/2019
  Medicare PECOS Information:
  • PECOS PAC ID: 8527150390
  • Enrollment ID: I20190307001035

Medical Identifiers

Medical identifiers for Dr Mark J Hornyak such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1124226394NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207T00000XNeurological Surgery 62295 (Connecticut)Primary
207T00000XNeurological Surgery 4301090199 (Michigan)Secondary

Medical Facilities Affiliation

Facility NameLocationFacility Type
William W Backus HospitalNorwich, CTHospital
Windham Community Memorial HospitalWillimantic, CTHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Hartford Healthcare Medical Group Specialists Pllc31738662411138

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 Mark J Hornyak allows following entities to bill medicare on his behalf.
Entity NameHartford Healthcare Medical Group Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1043561301
PECOS PAC ID: 1153573902
Enrollment ID: O20121201000007
Entity NameHartford Healthcare Medical Group Specialists Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1023584216
PECOS PAC ID: 3173866241
Enrollment ID: O20190514001441

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 Mark J Hornyak 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 Mark J Hornyak, MD
1 Towne Park Plz,
Norwich, CT 06360-2247

Ph: (607) 547-3334		Dr Mark J Hornyak, MD
1 Atwell Rd,
Cooperstown, NY 13326-1301

Ph: (607) 547-3334

Reviews and Comments


Neurological Surgery Doctors in Cooperstown, NY

Dr. Frank Allen Zimba, M.D.
Neurological Surgery
Medicare: Medicare Enrolled
Practice Location: 286 County Highway 33, Cooperstown, NY 13326
Phone: 716-640-1670    
Peter Leroux, MD
Neurological Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 1 Atwell Rd, Cooperstown, NY 13326
Phone: 607-547-3480    
Dr. Craig R Goldberg, M.D.
Neurological Surgery
Medicare: Accepting Medicare Assignments
Practice Location: 1 Atwell Rd, Cooperstown, NY 13326
Phone: 607-547-3334    Fax: 607-547-4786

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.