Keying Yan, OD - Medicare Optometrist in Williamsport, PA

Keying Yan, OD is a medicare enrolled "Optometrist" provider in Williamsport, Pennsylvania. She went to State University Of New York - State College Optometry and graduated in 2021 and has 3 years of diverse experience with area of expertise as Optometry. She is a member of the group practice Susquehanna Physician Services and her current practice location is 1705 Warren Ave Ste 303, Williamsport, Pennsylvania. You can reach out to her office (for appointments etc.) via phone at (570) 320-7850.

Keying Yan is licensed to practice in Pennsylvania (license number OEG003885) and she also participates in the medicare program. She accepts medicare assignments (which means she accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and her NPI Number is 1447924329.

Contact Information

Keying Yan, OD
1705 Warren Ave Ste 303,
Williamsport, PA 17701-2665
(570) 320-7850
Not Available

Map and Direction




Healthcare Provider's Profile

Full NameKeying Yan
GenderFemale
SpecialityOptometry
Experience3 Years
Location1705 Warren Ave Ste 303, Williamsport, Pennsylvania
Accepts Medicare AssignmentsYes. She accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Keying Yan attended and graduated from State University Of New York - State College Optometry in 2021
  NPI Data:
  • NPI Number: 1447924329
  • Provider Enumeration Date: 08/04/2021
  • Last Update Date: 07/13/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 7810376274
  • Enrollment ID: I20220615002849

Medical Identifiers

Medical identifiers for Keying Yan such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1447924329NPI-NPPES

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
152W00000XOptometrist 009356 (New York)Secondary
152W00000XOptometrist OEG003885 (Pennsylvania)Primary

Medical Facilities Affiliation

Facility NameLocationFacility Type
Williamsport Regional Medical CenterWilliamsport, PAHospital

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Susquehanna Physician Services2264336460483

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. Keying Yan allows following entities to bill medicare on her behalf.
Provider NameSusquehanna Physician Services
Provider TypePart B Supplier - Clinic/group Practice
Provider IdentifiersNPI Number: 1558393652
PECOS PAC ID: 2264336460
Enrollment ID: O20040412001071

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. Keying Yan 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
Keying Yan, OD
1201 Grampian Blvd,
Williamsport, PA 17701-1900

Ph: () -
Keying Yan, OD
1705 Warren Ave Ste 303,
Williamsport, PA 17701-2665

Ph: (570) 320-7850

Reviews and Comments


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Thomas J Gmitter, OD
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Phone: 570-323-8000    Fax: 570-326-2880

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.