John Hennessy, MD - Internal Medicine in Olean, NY

John Hennessy, MD is a Internal Medicine - Endocrinology, Diabetes & Metabolism physician based in Olean, New York. John Hennessy is licensed to practice in New York (license number 179364) and his current practice location is 535 Main St, Olean, New York. He can be reached at his office (for appointments etc.) via phone at (716) 372-0141.

NPI number for John Hennessy is 1780676676 and his current mailing address is 535 Main St, Olean, New York. He does not participate in medicare program and thus does not accept medicare assignments. His NPI Number is 1780676676.

Contact Information

John Hennessy, MD
535 Main St,
Olean, NY 14760-1513
(716) 372-0141
(716) 373-6632

Map and Direction




Physician's Profile

Full NameJohn Hennessy
GenderMale
SpecialityInternal Medicine - Endocrinology, Diabetes & Metabolism
Location535 Main St, Olean, New York
Accepts Medicare AssignmentsDoes not participate in Medicare Program. He may not accept medicare assignment.
  NPI Data:
  • NPI Number: 1780676676
  • Provider Enumeration Date: 08/17/2005
  • Last Update Date: 07/08/2007

Medical Identifiers

Medical identifiers for John Hennessy such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1780676676NPI-NPPES
01139495MedicaidNY

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207RE0101XInternal Medicine - Endocrinology, Diabetes & Metabolism 179364 (New York)Primary

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. John Hennessy is NOT enrolled with medicare and thus cannot prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
John Hennessy, MD
535 Main St,
Olean, NY 14760-1513

Ph: (716) 372-0141
John Hennessy, 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.
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 535 Main St, Olean, NY 14760
Phone: 716-372-0141    Fax: 716-372-6421
Arkady Peterman, M.D,
Endocrinology, Diabetes & Metabolism
Medicare: Not Enrolled in Medicare
Practice Location: 535 Main St, Olean, NY 14760
Phone: 716-372-0141    Fax: 716-376-2451
Dr. Zafar K Mirza, MD
Endocrinology, Diabetes & Metabolism
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
Endocrinology, Diabetes & Metabolism
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.
Endocrinology, Diabetes & Metabolism
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
Endocrinology, Diabetes & Metabolism
Medicare: Medicare Enrolled
Practice Location: 2223 W State St, Olean, NY 14760
Phone: 716-372-5601    
Dr. Christopher Alki Michaeles, M.D.
Endocrinology, Diabetes & Metabolism
Medicare: Accepting Medicare Assignments
Practice Location: 2223 W State St Ste 120, Olean, NY 14760
Phone: 716-710-8266    

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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.

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