Mitchell L. Warren, M.D.
Ophthalmology Physician · Deerfield, IL
Mitchell L. Warren, M.D. is an ophthalmology physician with a practice address in Deerfield, Illinois, and NPI 1376543041, issued on Jul 26, 2005. Check the license (Illinois 036-093327, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Mitchell L. Warren
- Credential
- M.D.
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License numbers
- 036-093327 IL
036093327 IL
Self-reported in NPPES; status is on the state search - Practice location
- 740 Waukegan RD, Deerfield, IL 60015
- Phone
- (847) 945-6770
- Enumerated
- Jul 26, 2005
- Record last updated
- Sep 4, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (847) 945-3159
- Medicaid ID
- 036093327 IL
- Medicare enrollment
- Enrolled (PECOS I20100714001021); accepts Medicare assignment
- Medical or professional school
- R Franklin University Of Med & Sci/Chicago Medical School, 1993
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 898 in Illinois → Look up another NPI →
Also registered at 740 Waukegan RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Tamara Fountain, M.D.Ophthalmic Plastic and Reconstructive Surgery Physician1033110978
- Ronald May, M.D.Ophthalmology Physician1447250949
- Diany Morales, M.D.Ophthalmology Physician1124054937
- Matthew Plofsky, MDFamily Medicine Physician1104991231
Verify Mitchell L. Warren 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 036-093327Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average ophthalmology physician in 2024
881 Medicare Part D claims for 284 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
- Latanoprost252 claims
- Moxifloxacin106 claims
- Timolol Maleate94 claims
- Neomycin-Polymyxin-Dexameth91 claims
- Prednisolone Acetate36 claims
- Tobramycin-Dexamethasone34 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): 85 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: $237.55
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
- Ophthalmology Partners, Ltd.Deerfield, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mitchell L. Warren among 898 ophthalmology physician records in Illinois
Mitchell L. Warren, M.D. 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
- Graduated1993 · median 1999 among the 551 with a school on file
- Record last updated2018 · 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 Deerfield → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Ronald May, M.D.Deerfield, IL 600151447250949
- Diany Morales, M.D.Deerfield, IL 600151124054937
- Leonard Bendikas, M.D.Des Plaines, IL 600161932118148
- Edward Dolezal, MDCrystal Lake, IL 600141821045782
- Ira Garoon, M.D.Des Plaines, IL 600161609994441
- Marshall Hirshman, MDDes Plaines, IL 600161003840133
- James Katz, MDDes Plaines, IL 600161477587509
- Richard Katz, MDDes Plaines, IL 600161841213725
Common questions
What is Mitchell L. Warren, M.D.'s NPI number?
Mitchell L. Warren, M.D.'s National Provider Identifier (NPI) is 1376543041, issued on Jul 26, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Mitchell L. Warren, M.D. located?
The NPPES record lists a practice address at 740 Waukegan RD, Deerfield, IL, 60015. Phone: (847) 945-6770. Providers update this record themselves, so call before visiting.
How can I verify Mitchell L. Warren, M.D.'s license?
NPPES lists Illinois license number 036-093327, 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 Mitchell L. Warren, M.D. prescribe under Medicare Part D?
In 2024, Mitchell L. Warren, M.D. had 881 Medicare Part D claims for 284 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
What is Mitchell L. Warren, M.D.'s MIPS final score?
The 2023 MIPS final score is 85 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.