Masayuki Kazahaya, M.D.
Ophthalmology Physician · Allentown, PA
Masayuki Kazahaya, M.D. is an ophthalmology physician with a practice address in Allentown, Pennsylvania, and NPI 1619974391, issued on Jul 7, 2005. Check the license (Pennsylvania MD048976L, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Masayuki Kazahaya
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- MD048976L PA
Self-reported in NPPES; status is on the state search - Practice location
- 1251 S Cedar Crest Blvd, Allentown, PA 18103
- Phone
- (610) 820-6320
- Enumerated
- Jul 7, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (610) 820-8376
- Medicaid ID
- 0015899110002 PA
- Medicare enrollment
- Enrolled (PECOS I20100622000291); accepts Medicare assignment
- Medical or professional school
- Hahnemann University College Of Medicine, 1990
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 1,088 in Pennsylvania → Look up another NPI →
Also registered at 1251 S Cedar Crest Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Alicia Coffman, LPCProfessional Counselor1881133171
- Michael Daniels, LCSWClinical Social Worker1386626364
- Frank Dattilio, PH.D.Clinical Psychologist1710150826
- Einat Delong, PSYDClinical Psychologist1184856015
Verify Masayuki Kazahaya in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD048976LCheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average ophthalmology physician in 2024
374 Medicare Part D claims for 142 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.
Most prescribed
- Prednisolone Acetate84 claims
- Brimonidine Tartrate43 claims
- Ketorolac Tromethamine31 claims
- Brimonidine Tartrate-Timolol28 claims
- Latanoprost20 claims
- Dorzolamide Hcl14 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: $213.63
6 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. 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
- Lehigh Retina Specialists, P.C.Allentown, PA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Masayuki Kazahaya among 1,088 ophthalmology physician records in Pennsylvania
Masayuki Kazahaya, M.D. 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 78% newer
- In a Medicare fileYes · 81% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1990 · median 2000 among the 734 with a school on file
- Record last updated2026 · 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 Allentown → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- David De Rose, MDAllentown, PA 181031255443073
- Tricia Lennox Thomas, M.D.Allentown, PA 181031760423826
- William McLaughlin, DOAllentown, PA 181031104886498
- Houman Ahdieh, M.D.Allentown, PA 181041659371060
- Frank Baloh, MDAllentown, PA 181041538113865
- Lisa Bunin, MDAllentown, PA 181041154397875
- Harvey Cheng, M.D.Allentown, PA 181041679579254
- Harold Goldfarb, MDAllentown, PA 181041396706297
Common questions
What is Masayuki Kazahaya, M.D.'s NPI number?
Masayuki Kazahaya, M.D.'s National Provider Identifier (NPI) is 1619974391, issued on Jul 7, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Masayuki Kazahaya, M.D. located?
The NPPES record lists a practice address at 1251 S Cedar Crest Blvd, Allentown, PA, 18103. Phone: (610) 820-6320. Providers update this record themselves, so call before visiting.
How can I verify Masayuki Kazahaya, M.D.'s license?
NPPES lists Pennsylvania license number MD048976L, 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 Masayuki Kazahaya, M.D. prescribe under Medicare Part D?
In 2024, Masayuki Kazahaya, M.D. had 374 Medicare Part D claims for 142 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.