Dr. Steven R. Corwin, MD
- Medicare services, 2024
- 3,261
- Medicare patients, 2024
- 1,139
- Part D claims, 2024
- 2,280
- MIPS score, 2024
- 91
- Industry payments
- $8,796
- Practice address
- 351 Rolling Oaks Dr Suite 102 Suite 102, Thousand Oaks, CA 91361-1279
- Practice phone
- Call (805) 497-3744
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Conejo Simi Eye Medical Group
Eye care practice · Thousand Oaks, California
Find Dr. Corwin's professional email, personal email and mobile number
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Dr. Steven R. Corwin is an ophthalmologist in Thousand Oaks, California
Dr. Corwin practices at Conejo Simi Eye Medical Group in Thousand Oaks, California.
Dr. Corwin's NPI, 1720089964, was assigned on August 10, 2005. Dr. Corwin graduated from MCP-Hahnemann College of Medicine in 1983. Dr. Corwin's California license number on file is G139740.
- NPI
- 1720089964NPI Registry (opens in a new tab)
- Medicare PAC ID
- 4385673060
- NPI enumeration date
- August 10, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (805) 497-3744
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 69
- Medical school graduation
- 1983
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Steven R. Corwin practices at Conejo Simi Eye Medical Group in Thousand Oaks, California
Dr. Corwin's primary practice is Conejo Simi Eye Medical Group, at 351 Rolling Oaks Dr Suite 102 Suite 102, Thousand Oaks, CA 91361-1279. The practice phone is (805) 497-3744.
- Conejo Simi Eye Medical Group351 Rolling Oaks Dr Suite 102 Suite 102, Thousand Oaks, CA 91361-1279Phone(805) 497-3744
Source: Dmand AI Affiliation Data
Dr. Steven R. Corwin is affiliated with 1 site of care and 1 medical group
Dr. Corwin's primary practice is Conejo Simi Eye Medical Group in Thousand Oaks, California. Dmand AI also links Dr. Corwin to 1 medical group, named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Steven R. Corwin's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Corwin practices. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Conejo Simi Eye Medical Group | Available with a free account |
| +1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Steven R. Corwin is one of 2,621 ophthalmologists in California
Ophthalmology is Dr. Corwin's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. Corwin is board certified in ophthalmology by the American Board of Ophthalmology. Dmand AI has Dr. Corwin's licenses on file in 5 states: California, New Jersey, New York, Georgia and Pennsylvania.
Specialties and state licenses
- Ophthalmology, CaliforniaPrimary
- New Jersey license
- New York license
- Georgia license
- Pennsylvania license
Clinical focus
Dmand AI lists age-related macular degeneration, cataract, cataract surgery with lens implant, cold sores or genital herpes, conjunctivitis, dry eye, eye infection or inflammation and eyelid inflammation among the conditions Dr. Corwin treats.
Ophthalmologists near Dr. Corwin
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. Steven R. Corwin billed Medicare for 3,261 services in 2024
CMS data shows 3,261 Medicare services from Dr. Corwin across 23 procedure codes in 2024, for 1,139 Medicare patients. Medicare paid $411,151 for them.
Dr. Corwin's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Tests and treatments
- 2023: 1,3592024: 1,3272%
- Office and hospital visits
- 2023: 9492024: 1,0015%
- Surgery
- 2023: 8802024: 8434%
- Other services
- 2023: 02024: 59
- Imaging
- 2023: 152024: 1713%
- Drugs given in the office
- 2023: 02024: 14
Where Dr. Corwin's Medicare services took place, 2024
- In an office2,87188%
- In a facility39012%
Dr. Corwin compared with the California median for ophthalmologists, 2024
- Dr. Corwin
- California median
- Medicare services
- 3,261vs 1,0793.0 times
- Medicare patients
- 1,139vs 4212.7 times
- Part D claims
- 2,166vs 6183.5 times
Medians across 2,568 ophthalmologists in California with Dmand AI profiles that report each measure.
Dr. Corwin'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. Corwin and other ophthalmologists in California.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Steven R. Corwin treated 1,139 Medicare patients in 2024, average age 76
CMS counts 1,139 Medicare patients who saw Dr. Corwin in 2024. The largest group is 75 to 84, with 509 patients. 75% of them have high cholesterol, and 73% have high blood pressure. 6% 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. Corwin's median patient age at 75, with 55% women.
Dr. Corwin's Medicare patients by age, 2024
Dr. Corwin's Medicare patients by sex, 2024
- Women71663%
- Men42337%
Chronic conditions among Dr. Corwin's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis56%
- Ischemic heart disease32%
- Diabetes25%
- Anxiety23%
- Osteoporosis23%
- Mood disorders22%
Share of Medicare patients with each condition. A patient can have several.
Dr. Corwin'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
- Women55%
- Men44%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Steven R. Corwin wrote 2,280 Medicare Part D claims in 2024
In 2024, Dr. Corwin wrote 2,280 Medicare Part D claims for 528 patients. 42% of them were for generic drugs. CMS names the drug for 2,166 of them, across 22 drugs with 11 or more claims each, at $351,561 in total drug cost. In 2023, CMS named 2,209 claims across 23 drugs.
Dr. Corwin's Part D claims by kind of drug, 2024
- Generic968 claims42%
- Brand-name1,312 claims58%
Dr. Corwin'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: 2,2092024: 2,1662%
Drugs named by CMS: 22 in 2024, 23 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. Steven R. Corwin scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Corwin for performance year 2024, reported as part of a group. Dr. Corwin accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 473 procedures of cataract surgery by Dr. Corwin, more than 95% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Corwin's MIPS scores, performance year 2024
- 91of 100Final score
- 94.9of 100Quality
- 40of 100Improvement Activities
- 77of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Corwin ranks in Medicare procedure volume
- Cataract surgery
- 95th percentile473 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. Steven R. Corwin received $8,796 in industry payments from 2016 to 2025
CMS Open Payments shows 320 general payments to Dr. Corwin from 30 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 100% of the total. Johnson & Johnson Surgical Vision, Inc. paid the most, $1,253.
General payments to Dr. Corwin by program year, 2016 to 2025
General payments to Dr. Corwin by kind, 2016 to 2025
- Food and beverage$8,759100%
- Education$380%
Companies that paid Dr. Corwin 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. Steven R. Corwin has 3 awards and honors on record
Dmand AI lists 3 awards for Dr. Corwin, most recently CMS Stage 1 EHR in 2013.
Awards and honors for Dr. Corwin
- 2013
- CMS Stage 1 EHR
- Undated
- AAO Fellow
- Member
Source: Dmand AI Professional Profile Data
Dr. Steven R. Corwin graduated from MCP-Hahnemann College of Medicine
Dr. Corwin graduated from MCP-Hahnemann College of Medicine in 1983. Dr. Corwin is a member of AAO.
- Medical school
- Board certified in ophthalmology
Source: Dmand AI Professional Profile Data
Dr. Steven R. Corwin accepts plans from 16 insurance carriers
Dr. Corwin is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and HCSC. HMO plans come from the most carriers, 11. Check the plan with the practice before a visit.
- Aetna
- Blue Cross Blue Shield of Michigan
- HCSC
- United Healthcare
- Blue Cross Blue Shield of Massachusetts
- Elevance
- Humana
- Alliant Health Plans
- +8 more carriersWith a free account
Plan types Dr. Corwin accepts, by number of carriers
- HMO11
- PPO10
- Medicare7
- POS5
- EPO3
Source: Dmand AI Insurance Network Data
Sources for Dr. Steven R. Corwin'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 | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand 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) |
| Awards and committee roles | Dmand AI Professional Profile Data |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| Insurance carriers and plan types | Dmand AI Insurance Network 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. Steven R. Corwin
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. Steven R. Corwin's NPI number?
Dr. Steven R. Corwin's NPI number is 1720089964. It was assigned on August 10, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Steven R. Corwin?
Dr. Steven R. Corwin is an ophthalmologist in Thousand Oaks, California. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. Steven R. Corwin practice?
Dr. Corwin practices at 351 Rolling Oaks Dr Suite 102 Suite 102, Thousand Oaks, CA 91361-1279. Dr. Corwin's primary practice is Conejo Simi Eye Medical Group in Thousand Oaks, California. Dmand AI also links Dr. Corwin to 1 medical group.
What is Dr. Steven R. Corwin's office phone number?
The practice phone on file for Dr. Corwin is (805) 497-3744.
What is Dr. Steven R. Corwin's medical license number?
Dr. Corwin's California license number on file is G139740, one of the licenses on file in 5 states.
Which states has Dr. Steven R. Corwin been licensed in?
Dmand AI has state licenses on file for Dr. Corwin in California (2015 to 2025), New Jersey (since 1986), New York (since 1987), Georgia (1989 to 2017) and Pennsylvania (1983 to 1984).
Does Dr. Steven R. Corwin accept Medicare?
Yes. CMS data shows Dr. Corwin billed Medicare for 3,261 services in 2024, and Dr. Corwin accepts Medicare assignment.
What is Dr. Steven R. Corwin's MIPS score?
Dr. Corwin's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.
How many Medicare patients does Dr. Steven R. Corwin see?
CMS counts 1,139 Medicare patients who saw Dr. Corwin in 2024, with an average age of 76.
Is Dr. Steven R. Corwin board certified?
Yes. Dr. Corwin is board certified in ophthalmology by the American Board of Ophthalmology.
Show 6 more questionsShow fewer questions
What services does Dr. Steven R. Corwin bill to Medicare?
In 2024, Dr. Corwin's most billed Medicare services were eye exam or test (92014), office visit, established patient (99214) and office visit, established patient (99213).
Where did Dr. Steven R. Corwin go to medical school?
Dr. Corwin graduated from MCP-Hahnemann College of Medicine in 1983.
What drugs does Dr. Steven R. Corwin prescribe most?
In 2024 Medicare Part D data, Dr. Corwin's most prescribed drugs by claims were Prednisolone Acetate, Latanoprost and Ketorolac Tromethamine.
Has Dr. Steven R. Corwin received payments from drug or device companies?
CMS Open Payments shows $8,796 in general payments to Dr. Corwin from 30 companies from 2016 to 2025. The largest total came from Johnson & Johnson Surgical Vision, Inc.
How long has Dr. Steven R. Corwin been practicing?
Dr. Corwin graduated from medical school in 1983, 43 years ago.
What insurance does Dr. Steven R. Corwin accept?
Dr. Corwin is in network with 16 carriers, including Aetna, Blue Cross Blue Shield of Michigan and HCSC. HMO plans come from the most carriers, 11. Check the plan with the practice before a visit.
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