Spencer Onishi, D.O.
Ophthalmology Physician · Danville, PA
Spencer Onishi, D.O. is an ophthalmology physician with a practice address in Danville, Pennsylvania, and NPI 1194119164, issued on Mar 26, 2015. Check the license (Pennsylvania OS019879, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Spencer Onishi
- Credential
- D.O.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License numbers
- OS019879 PA
OT016929 PA
Self-reported in NPPES; status is on the state search - Practice location
- 16 Woodbine Lane, Danville, PA 17822
- Phone
- (570) 271-6531
- Enumerated
- Mar 26, 2015
- Record last updated
- Feb 11, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (570) 271-7146
- Medicare enrollment
- Enrolled (PECOS I20190523000857); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 1,088 in Pennsylvania → Look up another NPI →
Also registered at 16 Woodbine Lane
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Spencer Onishi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license OS019879Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
48% fewer Medicare Part D claims than the average ophthalmology physician in 2024
789 Medicare Part D claims for 253 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 33% of claims.
Most prescribed
- Latanoprost139 claims
- Prednisolone Acetate126 claims
- Brimonidine Tartrate86 claims
- Ofloxacin78 claims
- Dorzolamide-Timolol62 claims
- Timolol Maleate39 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.
Industry payments in 2024: $212.24
3 payments; by number, the most common kind was food and beverage; the largest payer was RxSight Inc. The 13,221 providers of this specialty with any payment received $4,535.02 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Bernstein, Hilliker, Hartzell Eye Center, LLPLewisburg, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Spencer Onishi among 1,088 ophthalmology physician records in Pennsylvania
Spencer Onishi, D.O. is one of 1,088 ophthalmology physician records with a practice address in Pennsylvania. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2015, is newer than 83% of them.
- NPI issued2015 · 83% of these records are older, 15% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated2015 · median 2000 among the 734 with a school on file
- Record last updated2021 · 64% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Pennsylvania
There are 1,088 ophthalmology physician records in Pennsylvania.
All 1,088 in Pennsylvania → Every provider in Danville → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- David Axe, MDDanville, PA 178221679000103
- Vincent Baldassano, MDDanville, PA 178221326198664
- Giovanni BattistiniDanville, PA 178221013856871
- Christopher Cessna, D.O.Danville, PA 178221114985207
- Robert Notz, M.D.Danville, PA 178221609839513
- Gregory Notz, DODanville, PA 178221124286331
- Ana Rubin Panvini, M.D.Danville, PA 178221871974139
- Tarika Thareja, M.D.Danville, PA 178221598184673
Common questions
What is Spencer Onishi, D.O.'s NPI number?
Spencer Onishi, D.O.'s National Provider Identifier (NPI) is 1194119164, issued on Mar 26, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Spencer Onishi, D.O. located?
The NPPES record lists a practice address at 16 Woodbine Lane, Danville, PA, 17822. Phone: (570) 271-6531. Providers update this record themselves, so call before visiting.
How can I verify Spencer Onishi, D.O.'s license?
NPPES lists Pennsylvania license number OS019879, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Spencer Onishi, D.O. prescribe under Medicare Part D?
In 2024, Spencer Onishi, D.O. had 789 Medicare Part D claims for 253 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
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.