Dr. Mitchell L. Warren, MD
- Medicare services, 2024
- 2,636
- Medicare patients, 2024
- 1,108
- Part D claims, 2024
- 881
- MIPS score, 2024
- 88
- Hospital affiliations
- 1
- Practice address
- 740 Waukegan Rd, Deerfield, IL 60015
- Practice phone
- Call (847) 945-6770
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Ophthalmology Partners, Ltd.
Deerfield, Illinois
Find Dr. Warren's professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Mitchell L. Warren is an ophthalmologist in Deerfield, Illinois
Dr. Warren practices at Ophthalmology Partners, Ltd. in Deerfield, Illinois.
Dr. Warren's NPI, 1376543041, was assigned on July 26, 2005. Dr. Warren graduated from R Franklin University of Med & Sci/Chicago Medical School in 1993. Dr. Warren holds Illinois license 036-093327.
- NPI
- 1376543041NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0244362093
- NPI enumeration date
- July 26, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (847) 945-6770
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mitchell L. Warren practices at Ophthalmology Partners, Ltd. in Deerfield, Illinois
Dr. Warren's primary practice is Ophthalmology Partners, Ltd., at 740 Waukegan Rd, Deerfield, IL 60015 in Lake County. The practice phone is (847) 945-6770.
- Ophthalmology Partners, Ltd.740 Waukegan Rd, Deerfield, IL 60015 · Lake CountyPhone(847) 945-6770
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Mitchell L. Warren is affiliated with 3 sites of care and 1 medical group
Dr. Warren's primary practice is Ophthalmology Partners, Ltd. in Deerfield, Illinois. Dr. Warren is also affiliated with Evanston Hospital. Dmand AI also links Dr. Warren to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Mitchell L. Warren's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Warren practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Ophthalmology Partners, Ltd. | Available with a free account |
| +2 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Mitchell L. Warren is one of 692 ophthalmologists in Illinois
Ophthalmology is Dr. Warren's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Warren is licensed in Illinois.
Specialties and state licenses
- Ophthalmology, IllinoisPrimary
Ophthalmologists near Dr. Warren
Counts of ophthalmologists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Mitchell L. Warren billed Medicare for 2,636 services in 2024
CMS data shows 2,636 Medicare services from Dr. Warren across 18 procedure codes in 2024, for 1,108 Medicare patients. Medicare paid $203,543 for them.
Dr. Warren's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,7692024: 1,8263%
- Office and hospital visits
- 2023: 6482024: 6693%
- Surgery
- 2023: 1192024: 14118%
Where Dr. Warren's Medicare services took place, 2024
- In an office2,55497%
- In a facility823%
Dr. Warren compared with the Illinois median for ophthalmologists, 2024
- Dr. Warren
- Illinois median
- Medicare services
- 2,636vs 1,54471% above
- Medicare patients
- 1,108vs 57792% above
- Part D claims
- 757vs 58230% above
Medians across 710 ophthalmologists in Illinois with Dmand AI profiles that report each measure.
Dr. Warren's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Warren and other ophthalmologists in Illinois.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mitchell L. Warren treated 1,108 Medicare patients in 2024, average age 77
CMS counts 1,108 Medicare patients who saw Dr. Warren in 2024. The largest group is 75 to 84, with 467 patients. 75% of them have high cholesterol, and 65% have high blood pressure. 3% are also on Medicaid. Their average risk score is 1.00, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Warren's median patient age at 68, with 59% women.
Dr. Warren's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Warren's Medicare patients by sex, 2024
- Women62556%
- Men48344%
Chronic conditions among Dr. Warren's Medicare patients, 2024
- High cholesterol75%
- High blood pressure65%
- Arthritis44%
- Osteoporosis22%
- Diabetes21%
- Ischemic heart disease21%
- Cancer19%
- Chronic kidney disease17%
Share of Medicare patients with each condition. A patient can have several.
Dr. Warren's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 68
Patient panel by sex, all payers
- Women59%
- Men41%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Mitchell L. Warren wrote 881 Medicare Part D claims in 2024
In 2024, Dr. Warren wrote 881 Medicare Part D claims for 284 patients. 57% of them were for generic drugs. CMS names the drug for 757 of them, across 15 drugs with 11 or more claims each, at $54,172 in total drug cost. In 2023, CMS named 585 claims across 11 drugs.
Dr. Warren's Part D claims by kind of drug, 2024
- Generic506 claims57%
- Brand-name375 claims43%
Dr. Warren's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 5852024: 75729%
Drugs named by CMS: 15 in 2024, 11 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Mitchell L. Warren scored 88 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 88 out of 100 for Dr. Warren for performance year 2024, reported as part of a group. Dr. Warren accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Warren as offering telehealth. CMS counts 85 procedures of cataract surgery by Dr. Warren, more than 72% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Warren's MIPS scores, performance year 2024
- 88of 100Final score
- 90.4of 100Quality
- 40of 100Improvement Activities
- 73of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Warren ranks in Medicare procedure volume
- Cataract surgery
- 72nd percentile85 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Mitchell L. Warren received $1,205 in industry payments from 2016 to 2025
CMS Open Payments shows 38 general payments to Dr. Warren from 13 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 97% of the total. Alcon Laboratories Inc paid the most, $487.
General payments to Dr. Warren by program year, 2016 to 2025
General payments to Dr. Warren by kind, 2016 to 2025
- Food and beverage$1,16797%
- Education$383%
Companies that paid Dr. Warren the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Mitchell L. Warren graduated from R Franklin University of Med & Sci/Chicago Medical School
Dr. Warren graduated from R Franklin University of Med & Sci/Chicago Medical School in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Mitchell L. Warren's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Mitchell L. Warren
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Mitchell L. Warren's NPI number?
Dr. Mitchell L. Warren's NPI number is 1376543041. It was assigned on July 26, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Mitchell L. Warren?
Dr. Mitchell L. Warren is an ophthalmologist in Deerfield, Illinois. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Mitchell L. Warren practice?
Dr. Warren practices at 740 Waukegan Rd, Deerfield, IL 60015. Dr. Warren's primary practice is Ophthalmology Partners, Ltd. in Deerfield, Illinois. Dmand AI also links Dr. Warren to 1 group practice or clinic and 1 medical group.
What is Dr. Mitchell L. Warren's office phone number?
The practice phone on file for Dr. Warren is (847) 945-6770.
What is Dr. Mitchell L. Warren's medical license number?
Dr. Warren holds Illinois license 036-093327.
Which hospitals is Dr. Mitchell L. Warren affiliated with?
Dr. Warren is affiliated with Evanston Hospital.
Does Dr. Mitchell L. Warren accept Medicare?
Yes. CMS data shows Dr. Warren billed Medicare for 2,636 services in 2024, and Dr. Warren accepts Medicare assignment.
Does Dr. Mitchell L. Warren offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Warren as offering telehealth services.
What is Dr. Mitchell L. Warren's MIPS score?
Dr. Warren's MIPS final score for performance year 2024 is 88 out of 100, reported as part of a group.
How many Medicare patients does Dr. Mitchell L. Warren see?
CMS counts 1,108 Medicare patients who saw Dr. Warren in 2024, with an average age of 77.
Show 5 more questionsShow fewer questions
What services does Dr. Mitchell L. Warren bill to Medicare?
In 2024, Dr. Warren's most billed Medicare services were eye exam or test (92014), office visit, established patient (99213) and eye exam or test (92202).
Where did Dr. Mitchell L. Warren go to medical school?
Dr. Warren graduated from R Franklin University of Med & Sci/Chicago Medical School in 1993.
What drugs does Dr. Mitchell L. Warren prescribe most?
In 2024 Medicare Part D data, Dr. Warren's most prescribed drugs by claims were Latanoprost, Moxifloxacin and Timolol Maleate.
Has Dr. Mitchell L. Warren received payments from drug or device companies?
CMS Open Payments shows $1,205 in general payments to Dr. Warren from 13 companies from 2016 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dr. Mitchell L. Warren been practicing?
Dr. Warren graduated from medical school in 1993, 33 years ago.
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