KEYING YAN OD
NPI 1447924329
Optometrist in Hershey, PA
About Keying Yan Od NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
KEYING YAN OD (NPI 1447924329) is an individual optometrist in Hershey, Pennsylvania, licensed in Pennsylvania (OEG003885) and active in the NPI registry since August 2021. She is enrolled in Medicare PECOS, is affiliated with Milton S Hershey Medical Center, and maintains a secondary practice location in Williamsport.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Keying Yan Od is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
2Medicare enrollment records show Keying Yan reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Hershey, PA 17033
- Reassigned Medicare billing, Pennsylvania enrollment
- 2,216 clinicians in this Medicare group
Williamsport, PA 17701
- Reassigned Medicare billing, Pennsylvania enrollment
- 3 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims 10
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Milton S Hershey Medical Center
Acute Care Hospitals · Hershey, PAPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 17033 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
HERSHEY, PA 17033
HERSHEY, PA 17033
HERSHEY, PA 17033
Frequently Asked Questions NPPES & CMS
Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.
What is Keying Yan's NPI number?
The NPI number for Keying Yan is 1447924329. It was assigned to this individual provider in the NPPES registry on August 4, 2021.
Where is Keying Yan located?
Keying Yan practices at 500 University Dr, Hershey, PA 17033. The listed phone number is (717) 531-5690.
What is Keying Yan's specialty?
The primary specialty registered for this NPI is Optometrist with taxonomy code 152W00000X.
Is Keying Yan enrolled in Medicare?
Yes. Keying Yan is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Keying Yan's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Keying Yan reassigns Medicare benefits to 2 organizations: The Milton S Hershey Medical Center Physicians Group (Hershey, PA) and Susquehanna Physician Services (Williamsport, PA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Keying Yan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Keying Yan accept?
Health plans from Anthem Blue Cross and Blue Shield list Keying Yan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
Is Keying Yan affiliated with any hospitals?
According to CMS data, Keying Yan is affiliated with Milton S Hershey Medical Center.
When was this NPI record last updated?
The NPPES record for Keying Yan was last updated on April 27, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.
# Keying Yan, OD · NPI 1447924329
Optometrist provider in Hershey, Pennsylvania. Individual provider, active in the CMS NPPES registry since August 4, 2021.
## Identity
- **NPI:** 1447924329 (Entity type: Individual)
- **Enumerated:** August 4, 2021
- **Primary specialty:** Optometrist · taxonomy 152W00000X
- **State license:** OEG003885 (Pennsylvania)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 500 UNIVERSITY DR, Hershey, PA 17033-2360
- **Phone:** (717) 531-5690 · **Fax:** (717) 531-5009
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): The Milton S Hershey Medical Center Physicians Group (NPI 1710951744, Hershey, PA); Susquehanna Physician Services (NPI 1558393652, Williamsport, PA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** State University Of New York - State College Optometry, class of 2022
## Record status
- **NPPES last updated:** April 27, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1447924329) · Data from the CMS NPPES public registry.