Mark Allen Nekola, MD
Ophthalmology Physician · Swansea, IL
Mark Allen Nekola, MD is an ophthalmology physician with a practice address in Swansea, Illinois, and NPI 1073509766, issued on Sep 27, 2005. Check the license (Illinois 036092365, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Mark Allen Nekola
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License number
- 036092365 IL
Self-reported in NPPES; status is on the state search - Practice location
- 3990 N Illinois St, Swansea, IL 62226
- Phone
- (618) 277-1130
- Enumerated
- Sep 27, 2005
- Record last updated
- Sep 9, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (618) 277-4917
- Medicaid ID
- 036092365 IL
- Medicare enrollment
- Enrolled (PECOS I20101005000570); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 1989
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 898 in Illinois → Look up another NPI →
Also registered at 3990 N Illinois St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sama Alhalabi, ODOptometrist1508701996
- John Bush, ODOptometrist1326150822
- Homer Ferguson, M.D.Ophthalmology Physician1225033178
- Thomas Fleming, M.D.Ophthalmology Physician1730185117
- Bart Jones, M.D.Ophthalmology Physician1447256797
- Melissa Kiel, M.D.Ophthalmology Physician1750511242
Verify Mark Allen Nekola in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036092365Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
32% more Medicare Part D claims than the average ophthalmology physician in 2024
2,003 Medicare Part D claims for 415 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Latanoprost1,084 claims
- Timolol Maleate235 claims
- Brimonidine Tartrate164 claims
- Erythromycin60 claims
- Dorzolamide-Timolol57 claims
- Dorzolamide Hcl56 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): 80.4 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).
Industry payments in 2024: $18.38
1 payment: food and beverage; the largest payer was Thea Pharma 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
- Jfj Eyecare LtdBelleville, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Allen Nekola among 898 ophthalmology physician records in Illinois
Mark Allen Nekola, MD is one of 898 ophthalmology physician records with a practice address in Illinois. 75% 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, 84% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1989 · median 1999 among the 551 with a school on file
- Record last updated2014 · 60% 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 Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
8 ophthalmology physician records list a practice address in Swansea
They are 8 of the 352 NPPES records with a practice address in Swansea, and 898 ophthalmology physician records in Illinois.
All 898 in Illinois → Every provider in Swansea → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Homer Ferguson, M.D.Swansea, IL 622261225033178
- Thomas Fleming, M.D.Swansea, IL 622261730185117
- Bart Jones, M.D.Swansea, IL 622261447256797
- Melissa Kiel, M.D.Swansea, IL 622261750511242
- Jeffrey Maher, M.D.Swansea, IL 622261386649234
- Eric Mann, MD, PHDBelleville, IL 622261841289014
- Enrique PeraltaSwansea, IL 622261346237534
- Paul Szewczyk, MDBelleville, IL 622261245226703
Common questions
What is Mark Allen Nekola, MD's NPI number?
Mark Allen Nekola, MD's National Provider Identifier (NPI) is 1073509766, issued on Sep 27, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mark Allen Nekola, MD located?
The NPPES record lists a practice address at 3990 N Illinois St, Swansea, IL, 62226. Phone: (618) 277-1130. Providers update this record themselves, so call before visiting.
How can I verify Mark Allen Nekola, MD's license?
NPPES lists Illinois license number 036092365, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Allen Nekola, MD prescribe under Medicare Part D?
In 2024, Mark Allen Nekola, MD had 2,003 Medicare Part D claims for 415 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Mark Allen Nekola, MD's MIPS final score?
The 2023 MIPS final score is 80.4 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.