William Cihak, MD - Medicare Internal Medicine in Olean, NY

William Cihak, MD is a medicare enrolled "Internal Medicine" physician in Olean, New York. He graduated from medical school in 1998 and has 26 years of diverse experience with area of expertise as Internal Medicine. He is a member of the group practice Olean Medical Practice Pllc and his current practice location is 535 Main St, Olean, New York. You can reach out to his office (for appointments etc.) via phone at (716) 372-0141.

William Cihak is licensed to practice in New York (license number 216007) 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 1386643781.

Contact Information

William Cihak, MD
535 Main St,
Olean, NY 14760-1513
(716) 372-0141
(716) 376-2273

Map and Direction




Physician's Profile

Full NameWilliam Cihak
GenderMale
SpecialityInternal Medicine
Experience26 Years
Location535 Main St, Olean, 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:
  • William Cihak graduated from medical school in 1998
  NPI Data:
  • NPI Number: 1386643781
  • Provider Enumeration Date: 07/18/2005
  • Last Update Date: 02/13/2012
  Medicare PECOS Information:
  • PECOS PAC ID: 6608823364
  • Enrollment ID: I20100219000622

Medical Identifiers

Medical identifiers for William Cihak such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1386643781NPI-NPPES
02022622MedicaidNY

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207R00000XInternal Medicine 216007 (New York)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Cattaraugus County Department Of Health ChhaOlean, NYHome health agency
Vna Of Western Ny ChhaWilliamsville, NYHome health agency
Vna Of Northwest Pa, LlcBradford, PAHome health agency
Home Care And HospiceOlean, NYHospice
Kaleida HealthBuffalo, NYHospital
Olean General HospitalOlean, NYHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Olean Medical Practice Pllc004269804536

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 Cihak allows following entities to bill medicare on his behalf.
Entity NameOlean Medical Group Partnership
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1689669541
PECOS PAC ID: 1951203850
Enrollment ID: O20040122000168
Entity NameOlean Medical Practice Pllc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285384412
PECOS PAC ID: 0042698045
Enrollment ID: O20220603000542

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 Cihak 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 Cihak, MD
535 Main St,
Olean, NY 14760-1513

Ph: (716) 372-0141
William Cihak, MD
535 Main St,
Olean, NY 14760-1513

Ph: (716) 372-0141

Reviews and Comments


Internal Medicine Doctors in Olean, NY

Dr. Neha Bansal, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 535 Main St, Olean, NY 14760
Phone: 716-372-0141    Fax: 716-372-6421
Dr. Zafar K Mirza, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2223 W State St, Suite 115, Olean, NY 14760
Phone: 716-372-5601    Fax: 716-372-5616
Dr. Munir Ahmed Salimi, MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2223 W State St, Suite 114, Olean, NY 14760
Phone: 716-372-8660    Fax: 716-372-8684
Dr. Zia M Sheikh, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2211 W State St, Suite 121, Olean, NY 14760
Phone: 716-372-2355    Fax: 716-372-8682
Dr. Sam Jayanth Samuel, MD
Internal Medicine
Medicare: Medicare Enrolled
Practice Location: 2223 W State St, Olean, NY 14760
Phone: 716-372-5601    
Dr. Christopher Alki Michaeles, M.D.
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 2223 W State St Ste 120, Olean, NY 14760
Phone: 716-710-8266    
John R Weinhold Jr., MD
Internal Medicine
Medicare: Accepting Medicare Assignments
Practice Location: 535 Main St, Olean, NY 14760
Phone: 716-372-0141    Fax: 716-372-6421

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.