Hak J Ko, MD - Medicare Psychiatry & Neurology in Williamsville, NY

  1. Home
  2. Psychiatry & Neurology
  3. NY
  4. Williamsville
Hak J Ko, MD is a medicare enrolled "Psychiatry & Neurology - Psychiatry" physician in Williamsville, New York. His current practice location is 5687 Main St, Suite 102, Williamsville, New York. You can reach out to his office (for appointments etc.) via phone at (716) 204-3541.

Hak J Ko is licensed to practice in New York (license number 137567) and he also participates in the medicare program. He does not accept medicare assignments directly but he may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. His NPI Number is 1154398055.

Contact Information

Hak J Ko, MD
5687 Main St, Suite 102,
Williamsville, NY 14221-5517
(716) 204-3541
(716) 204-3542

Map and Direction




Physician's Profile

Full NameHak J Ko
GenderMale
SpecialityPsychiatry & Neurology - Psychiatry
Location5687 Main St, Williamsville, New York
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1154398055
  • Provider Enumeration Date: 03/01/2006
  • Last Update Date: 07/05/2010
  Medicare PECOS Information:
  • PECOS PAC ID: 2567435753
  • Enrollment ID: I20040816001340

Medical Identifiers

Medical identifiers for Hak J Ko such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1154398055NPI-NPPES
00020222401OtherNYUNIVERA
1509258OtherNYINDEPENDENT HEALTH
00508010006OtherNYBLUE CROSS BLUE SHIELD
00685534MedicaidNY

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084P0800XPsychiatry & Neurology - Psychiatry 137567 (New York)Primary

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. Hak J Ko allows following entities to bill medicare on his behalf.
Entity NameNiagara Falls Memorial Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1285717298
PECOS PAC ID: 0244134484
Enrollment ID: O20040413001290
Entity NameNiagara Falls Memorial Medical Center
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1982659256
PECOS PAC ID: 0244134484
Enrollment ID: O20040524000510

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. Hak J Ko 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
Hak J Ko, MD
5687 Main St, Suite 102,
Williamsville, NY 14221-5517

Ph: (716) 204-3541		Hak J Ko, MD
5687 Main St, Suite 102,
Williamsville, NY 14221-5517

Ph: (716) 204-3541

Reviews and Comments


Psychiatry & Neurology Doctors in Williamsville, NY

Syed Ahmed, M.D.
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 9 Limestone Dr, Williamsville, NY 14221
Phone: 716-626-4200    
Junaid Hashim, M.D.
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 5904 Sheridan Dr, Ste 1, Williamsville, NY 14221
Phone: 716-886-5493    Fax: 716-886-5835
Dr. Modhi Alkhaldi,
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 5851 Main St, Williamsville, NY 14221
Phone: 716-932-6080    Fax: 716-332-4245
Dr. Sandra A. Block, M.D.
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 325 Essjay Rd, Suite 210, Williamsville, NY 14221
Phone: 716-630-1122    Fax: 716-250-5924
Dr. Brian S. Joseph, M.D.
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 5820 Main St, 206, Williamsville, NY 14221
Phone: 716-633-5997    Fax: 716-634-2595
David Lichter, MD
Psychiatry & Neurology
Medicare: Accepting Medicare Assignments
Practice Location: 400 International Dr., Williamsville, NY 14221
Phone: 716-631-3555    Fax: 716-631-9525

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.