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Dr. Ronald E. Warwar, MD
NPI1881698363PAC ID4981734050
- Medicare services, 2024
- 3,518
- Medicare patients, 2024
- 1,660
- Part D claims, 2024
- 4,504
- Publications
- 12
- MIPS score, 2024
- 75
- Practice address
- 3100 Governors Place Blvd, Dayton, OH 45409
- Practice phone
- Call (937) 297-7676
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Warwar Eye Group, Inc
Dayton, Ohio
Find Dr. Warwar's professional email, personal email and mobile number
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Dr. Ronald E. Warwar is an ophthalmologist in Dayton, Ohio
Dr. Warwar practices at Warwar Eye Group, Inc in Dayton, Ohio.
Dr. Warwar's NPI, 1881698363, was assigned on June 13, 2005. Dr. Warwar graduated from Hahneman Medical College of the Pacific in 1991. Dr. Warwar holds Ohio license 35-06-9901-W.
NPI and contact details
- NPI
- 1881698363NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4981734050
- NPI enumeration date
- June 13, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (937) 297-7676
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Ronald E. Warwar practices at Warwar Eye Group, Inc in Dayton, Ohio
Dr. Warwar's primary practice is Warwar Eye Group, Inc, at 3100 Governors Place Blvd, Dayton, OH 45409 in Montgomery County. The practice phone is (937) 297-7676.
- Warwar Eye Group, Inc3100 Governors Place Blvd, Dayton, OH 45409 · Montgomery CountyPhone(937) 297-7676
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Ronald E. Warwar is affiliated with 3 sites of care and 1 medical group
Dr. Warwar's primary practice is Warwar Eye Group, Inc in Dayton, Ohio. Dr. Warwar is also affiliated with Miami Valley Hospital. Dmand AI also links Dr. Warwar to 1 more group practice or clinic and 1 medical group, each named with a free account.
Warwar Eye Group, IncPrimary
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Ronald E. Warwar's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Warwar practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Warwar Eye Group, Inc | 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. Ronald E. Warwar is one of 658 ophthalmologists in Ohio
Ophthalmology is Dr. Warwar's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Warwar is licensed in Ohio.
Specialties and state licenses
- Ophthalmology, OhioPrimary
Ophthalmologists near Dr. Warwar
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. Ronald E. Warwar billed Medicare for 3,518 services in 2024
CMS data shows 3,518 Medicare services from Dr. Warwar across 20 procedure codes in 2024, for 1,660 Medicare patients. Medicare paid $277,930 for them.
Medicare services, 20243,518
Medicare patients1,660
Paid by Medicare$277,930
Procedure codes20
Dr. Warwar's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,7782024: 1,7452%
- Tests and treatments
- 2023: 1,5412024: 1,4049%
- Surgery
- 2023: 3282024: 3383%
- Imaging
- 2023: 292024: 317%
Where Dr. Warwar's Medicare services took place, 2024
- In an office3,36496%
- In a facility1544%
Dr. Warwar compared with the Ohio median for ophthalmologists, 2024
- Dr. Warwar
- Ohio median
- Medicare services
- 3,518vs 1,1853.0 times
- Medicare patients
- 1,660vs 4773.5 times
- Part D claims
- 4,389vs 6416.8 times
Medians across 673 ophthalmologists in Ohio with Dmand AI profiles that report each measure.
Dr. Warwar'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.
Need commercial claims for Dr. Warwar?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Warwar and other ophthalmologists in Ohio.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Ronald E. Warwar treated 1,660 Medicare patients in 2024, average age 76
CMS counts 1,660 Medicare patients who saw Dr. Warwar in 2024. The largest group is 75 to 84, with 724 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 1% are also on Medicaid. Their average risk score is 1.06, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Warwar's median patient age at 75, with 60% women.
Medicare patients, 20241,660
Average age76
Average risk score1.06
Also on Medicaid1%
Dr. Warwar's Medicare patients by age, 2024
Dr. Warwar's Medicare patients by sex, 2024
- Women1,00460%
- Men65640%
Chronic conditions among Dr. Warwar's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis48%
- Diabetes27%
- Ischemic heart disease25%
- Chronic kidney disease23%
- Anxiety21%
- Mood disorders21%
Share of Medicare patients with each condition. A patient can have several.
Dr. Warwar's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 75
Patient panel by sex, all payers
- Women60%
- Men37%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Ronald E. Warwar wrote 4,504 Medicare Part D claims in 2024
In 2024, Dr. Warwar wrote 4,504 Medicare Part D claims for 1,037 patients. 74% of them were for generic drugs. CMS names the drug for 4,389 of them, across 26 drugs with 11 or more claims each, at $235,847 in total drug cost. In 2023, CMS named 3,742 claims across 25 drugs.
Part D claims, 20244,504
Drugs named by CMS26
Total drug cost$235,847
Part D patients1,037
Dr. Warwar's Part D claims by kind of drug, 2024
- Generic3,339 claims74%
- Brand-name1,165 claims26%
Dr. Warwar'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.
Drug classes CMS tracks in Dr. Warwar's Part D claims, 2024
- Antibiotics3%137 of 4,504 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3,7422024: 4,38917%
Drugs named by CMS: 26 in 2024, 25 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. Ronald E. Warwar scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Warwar for performance year 2024, reported individually. Dr. Warwar accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 261 procedures of cataract surgery by Dr. Warwar, more than 87% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
Where Dr. Warwar ranks in Medicare procedure volume
- Cataract surgery
- 87th percentile261 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. Ronald E. Warwar has 12 publications on record
Dmand AI links 12 papers to Dr. Warwar, published from 2013 to 2023. The most frequent topics are Contact Lens Solutions, Fusarium and Hot Temperature. Dr. Warwar has published most often in Arch Ophthalmol. Dr. Warwar's most frequent co-authors are Bruce M. Buerk, MD, Timothy J. McCulley, MD and Laura T. Phan, MD.
Papers12
Years published2013 to 2023
Dr. Warwar's papers by year, 2013 to 2023
Topics Dr. Warwar writes about most
- Contact Lens Solutions
- Fusarium
- Hot Temperature
- Contact Lenses
- Drug Storage
- Eye Infections, Fungal
- Plastics
- Biguanides
Dr. Warwar's most frequent co-authors
- Bruce M. Buerk, MD1 shared paper
- Timothy J. McCulley, MD1 shared paper
- Laura T. Phan, MD1 shared paper
Recent publications by Dr. Warwar
Case Rep Ophthalmol Med
BiguanidesChromatography, LiquidContact Lens Solutions
See who Dr. Warwar researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Warwar works with, so you can find a warm path to the right ophthalmologists.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. Ronald E. Warwar received $2,026 in industry payments from 2016 to 2025
CMS Open Payments shows 43 general payments to Dr. Warwar from 15 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, $268.
General payments to Dr. Warwar by program year, 2016 to 2025
General payments to Dr. Warwar by kind, 2016 to 2025
$2Kin total
- Food and beverage$1,96897%
- Education$583%
Companies that paid Dr. Warwar 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. Ronald E. Warwar graduated from Hahneman Medical College of the Pacific
Dr. Warwar graduated from Hahneman Medical College of the Pacific in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Ronald E. Warwar'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 DataDmand AI Org Hierarchy 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) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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. Ronald E. Warwar
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. Ronald E. Warwar's NPI number?
Dr. Ronald E. Warwar's NPI number is 1881698363. It was assigned on June 13, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Ronald E. Warwar?
Dr. Ronald E. Warwar is an ophthalmologist in Dayton, Ohio. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Ronald E. Warwar practice?
Dr. Warwar practices at 3100 Governors Place Blvd, Dayton, OH 45409. Dr. Warwar's primary practice is Warwar Eye Group, Inc in Dayton, Ohio. Dmand AI also links Dr. Warwar to 1 group practice or clinic and 1 medical group.
What is Dr. Ronald E. Warwar's office phone number?
The practice phone on file for Dr. Warwar is (937) 297-7676.
What is Dr. Ronald E. Warwar's medical license number?
Dr. Warwar holds Ohio license 35-06-9901-W.
Which hospitals is Dr. Ronald E. Warwar affiliated with?
Dr. Warwar is affiliated with Miami Valley Hospital.
Does Dr. Ronald E. Warwar accept Medicare?
Yes. CMS data shows Dr. Warwar billed Medicare for 3,518 services in 2024, and Dr. Warwar accepts Medicare assignment.
What is Dr. Ronald E. Warwar's MIPS score?
Dr. Warwar's MIPS final score for performance year 2024 is 75 out of 100, reported individually.
How many Medicare patients does Dr. Ronald E. Warwar see?
CMS counts 1,660 Medicare patients who saw Dr. Warwar in 2024, with an average age of 76.
What services does Dr. Ronald E. Warwar bill to Medicare?
In 2024, Dr. Warwar's most billed Medicare services were office visit, established patient (99213), eye exam or test (92014) and eye exam or test (92136).
Show 6 more questionsShow fewer questions
Where did Dr. Ronald E. Warwar go to medical school?
Dr. Warwar graduated from Hahneman Medical College of the Pacific in 1991.
What drugs does Dr. Ronald E. Warwar prescribe most?
In 2024 Medicare Part D data, Dr. Warwar's most prescribed drugs by claims were Latanoprost, Dorzolamide-Timolol and Timolol Maleate.
Has Dr. Ronald E. Warwar received payments from drug or device companies?
CMS Open Payments shows $2,026 in general payments to Dr. Warwar from 15 companies from 2016 to 2025. The largest total came from Alcon Laboratories Inc.
How long has Dr. Ronald E. Warwar been practicing?
Dr. Warwar graduated from medical school in 1991, 35 years ago.
Does Dr. Ronald E. Warwar do research?
Dmand AI links 12 publications to Dr. Warwar, published from 2013 to 2023.
Who does Dr. Ronald E. Warwar publish with?
Dr. Warwar's most frequent co-authors are Bruce M. Buerk, MD (1 shared paper), Timothy J. McCulley, MD (1 shared paper) and Laura T. Phan, MD (1 shared paper).
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