Ian Patterson, MD
Ophthalmology Physician · Massillon, OH
Ian Patterson, MD is an ophthalmology physician with a practice address in Massillon, Ohio, and NPI 1952920654, issued on Apr 13, 2020. Check the license (Ohio 35.149667, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.
- Name
- Ian Patterson
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 35.149667 OH
Self-reported in NPPES; status is on the state search - Practice location
- 3545 Lincoln Way E Ste A, Massillon, OH 44646
- Phone
- (330) 837-5191
- Enumerated
- Apr 13, 2020
- Record last updated
- May 8, 2024
- Fax
- (330) 837-0755
- Medicare enrollment
- Enrolled (PECOS I20240916002712); accepts Medicare assignment
- Medical or professional school
- University Of Cincinnati College Of Medicine, 2020
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 751 in Ohio → Look up another NPI →
Verify Ian Patterson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersState Medical Board of Ohio
Search for license 35.149667Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average ophthalmology physician in 2024
323 Medicare Part D claims for 157 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 43% of claims.
Most prescribed
- Prednisolone Acetate61 claims
- Latanoprost46 claims
- Dorzolamide-Timolol42 claims
- Ketorolac Tromethamine32 claims
- Brimonidine Tartrate21 claims
- Neomycin-Polymyxin-Dexameth20 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: $219.28
5 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
- The Eye Clinic IncMassillon, OH
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ian Patterson among 751 ophthalmology physician records in Ohio
Ian Patterson, MD is one of 751 ophthalmology physician records with a practice address in Ohio. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2020, is newer than 92% of them.
- NPI issued2020 · 92% of these records are older, 6% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated2020 · median 2002 among the 495 with a school on file
- Record last updated2024 · 62% 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 Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Ohio
There are 751 ophthalmology physician records in Ohio.
All 751 in Ohio → Every provider in Massillon → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Richard Fuller, D.O.Massillon, OH 446461376537506
- Brian Wind, D.O.Massillon, OH 446461164415147
- Michael Wood, D.O.Massillon, OH 446461447215728
- Thomas Kelly, D.O.New Philadelphia, OH 446631316170988
- Thomas Perkowski, D.O.Dover, OH 446221912962465
- Andrew Wherley, MDDover, OH 446221912986951
- Ryan Chenevey, M.D.Wooster, OH 446911013371152
- Sireesha Clark, M.D.Wooster, OH 446911982834438
Common questions
What is Ian Patterson, MD's NPI number?
Ian Patterson, MD's National Provider Identifier (NPI) is 1952920654, issued on Apr 13, 2020. An NPI identifies a provider in billing; it is not a license.
Where is Ian Patterson, MD located?
The NPPES record lists a practice address at 3545 Lincoln Way E Ste A, Massillon, OH, 44646. Phone: (330) 837-5191. Providers update this record themselves, so call before visiting.
How can I verify Ian Patterson, MD's license?
NPPES lists Ohio license number 35.149667, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Ian Patterson, MD prescribe under Medicare Part D?
In 2024, Ian Patterson, MD had 323 Medicare Part D claims for 157 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.