Michael Vincent Stock, MD
Ophthalmology Physician · O Fallon, IL
Michael Vincent Stock, MD is an ophthalmology physician with a practice address in O Fallon, Illinois, and NPI 1730442500, issued on Jun 18, 2012. Check the license (Illinois 036141217, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Michael Vincent Stock
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License numbers
- 036141217 IL
2016004847 MO
Self-reported in NPPES; status is on the state search - Practice location
- 705 Insight Ave, O Fallon, IL 62269
- Phone
- (618) 391-1660
- Enumerated
- Jun 18, 2012
- Record last updated
- Dec 11, 2025
- Fax
- (618) 861-6003
- Medicare enrollment
- Enrolled (PECOS I20160726001141); accepts Medicare assignment
- Medical or professional school
- Washington University School Of Medicine, 2012
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 898 in Illinois → Look up another NPI →
Also registered at 705 Insight Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Cameron Evans, D.O.Ophthalmology Physician1528447174
- Wesley Green, MDOphthalmology Physician1851736037
- Nicole Lowrey, MD, PHDOphthalmology Physician1356902381
- Whitney Marlow, M.D.Ophthalmology Physician1952783235
- Taylor Wolkart, ODOptometrist1831761360
Verify Michael Vincent Stock 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 036141217Check 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
383 Medicare Part D claims for 204 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims.
Most prescribed
- Prednisolone Acetate96 claims
- Latanoprost47 claims
- Dorzolamide-Timolol41 claims
- Timolol Maleate37 claims
- Ketorolac Tromethamine29 claims
- Brimonidine Tartrate16 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): 79.3 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: $830.45
22 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 2 group practices
- Ideal Eye Surgery LLCCreve Coeur, MO
- Washington UniversitySaint Louis, MO
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Michael Vincent Stock among 898 ophthalmology physician records in Illinois
Michael Vincent Stock, 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 2012, is newer than 75% of them.
- NPI issued2012 · 75% of these records are older, 23% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated2012 · median 1999 among the 551 with a school on file
- Record last updated2025 · 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).
Ophthalmology Physician providers in Illinois
There are 898 ophthalmology physician records in Illinois.
All 898 in Illinois → Every provider in O Fallon → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Cameron Evans, D.O.O Fallon, IL 622691528447174
- Wesley Green, MDO Fallon, IL 622691851736037
- Nicole Lowrey, MD, PHDO Fallon, IL 622691356902381
- Whitney Marlow, M.D.O Fallon, IL 622691952783235
- Jean Disseler, M.D.Quincy, IL 623011245202779
- Abram Geisendorfer, M.D.Quincy, IL 623011326230087
- James Hayashi, MDQuincy, IL 623011831133222
- David Phillips, M.D.Quincy, IL 623011649538638
Common questions
What is Michael Vincent Stock, MD's NPI number?
Michael Vincent Stock, MD's National Provider Identifier (NPI) is 1730442500, issued on Jun 18, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Michael Vincent Stock, MD located?
The NPPES record lists a practice address at 705 Insight Ave, O Fallon, IL, 62269. Phone: (618) 391-1660. Providers update this record themselves, so call before visiting.
How can I verify Michael Vincent Stock, MD's license?
NPPES lists Illinois license number 036141217, 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 Michael Vincent Stock, MD prescribe under Medicare Part D?
In 2024, Michael Vincent Stock, MD had 383 Medicare Part D claims for 204 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Michael Vincent Stock, MD's MIPS final score?
The 2023 MIPS final score is 79.3 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.