Keying Yan, OD
Optometrist · Hershey, PA
Keying Yan, OD is an optometrist with a practice address in Hershey, Pennsylvania, and NPI 1447924329, issued on Aug 4, 2021. Check the license (Pennsylvania OEG003885, as entered in NPPES) with the Pennsylvania board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Keying Yan
- Credential
- OD
- Primary taxonomy
- Optometrist 152W00000X
- License numbers
- OEG003885 PA
009356 NY
Self-reported in NPPES; status is on the state search - Practice location
- 500 University Dr, Hershey, PA 17033
- Phone
- (717) 531-5690
- Enumerated
- Aug 4, 2021
- Record last updated
- Apr 27, 2026
- Fax
- (717) 531-5009
- Medicare enrollment
- Enrolled (PECOS I20220615002849); accepts Medicare assignment
- Medical or professional school
- State University Of New York - State College Optometry, 2022
- Entity
- Type 1 · individual
8 nearest optometrist records → All 2,640 in Pennsylvania → Look up another NPI →
Also registered at 500 University Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Victor Abarca, CRNACertified Registered Nurse Anesthetist1003575853
- Aiza Abbas, MDStudent in an Organized Health Care Education/Training Program1164312500
- Fatemeh Abbasi, MDPulmonary Disease Physician1750878625
- Andrea Abbe, LDNRegistered Dietitian1366623795
- Mahdi Abdallah, MDStudent in an Organized Health Care Education/Training Program1497457360
- Ashraf Abdelhalim, MDAnesthesiology Physician1356931729
Verify Keying Yan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Pennsylvania board licenses this profession
Search for license OEG003885Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
6% more Medicare Part D claims than the average optometrist in 2024
295 Medicare Part D claims for 85 beneficiaries, against an average of 277 among the 33,128 providers of this specialty who prescribed in Part D. Brand-name drugs were 40% of claims.
Most prescribed
- Latanoprost85 claims
- Dorzolamide-Timolol34 claims
- Cyclosporine26 claims
- Timolol Maleate20 claims
- Brimonidine Tartrate19 claims
- Neomycin-Polymyxin-Dexameth12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 81.5 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Susquehanna Physician ServicesWilliamsport, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Keying Yan among 2,640 optometrist records in Pennsylvania
Keying Yan, OD is one of 2,640 optometrist records with a practice address in Pennsylvania. 72% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2021, is newer than 89% of them.
- NPI issued2021 · 89% of these records are older, 9% newer
- In a Medicare fileYes · 72% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2022 · median 2004 among the 1,588 with a school on file
- Record last updated2026 · 69% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 152W00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Optometrist providers in Pennsylvania
There are 2,640 optometrist records in Pennsylvania.
All 2,640 in Pennsylvania → Every provider in Hershey → Optometrist nationwide →
The 8 optometrist records with the nearest ZIP codes
- Marianne Boltz, ODHershey, PA 170331306800248
- J.e.b. Fugate, O.D.Hershey, PA 170331902971419
- Linda Goepfert, O.D.Hershey, PA 170331013904127
- Douglas Goepfert, O.D.Hershey, PA 170331265429377
- Kristin Goodling, O.D.Hershey, PA 170331841641271
- Carla Mariscotti, ODHershey, PA 170331902890155
- Harshal MehtaHershey, PA 170331285568725
- Tara O'Rourke, O.D.Hershey, PA 170331225342694
Common questions
What is Keying Yan, OD's NPI number?
Keying Yan, OD's National Provider Identifier (NPI) is 1447924329, issued on Aug 4, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Keying Yan, OD located?
The NPPES record lists a practice address at 500 University Dr, Hershey, PA, 17033. Phone: (717) 531-5690. Providers update this record themselves, so call before visiting.
How can I verify Keying Yan, OD's license?
NPPES lists Pennsylvania license number OEG003885, as entered by the provider. Search the Pennsylvania board that licenses this profession; the NPPES record confirms identity only.
How much does Keying Yan, OD prescribe under Medicare Part D?
In 2024, Keying Yan, OD had 295 Medicare Part D claims for 85 beneficiaries; the average among optometrist prescribers was 277. Part D covers Medicare prescriptions only.
What is Keying Yan, OD's MIPS final score?
The 2023 MIPS final score is 81.5 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.