Dr. David G. O'Day, MD
- Medicare services, 2024
- 1,312
- Medicare patients, 2024
- 503
- Part D claims, 2024
- 1,328
- MIPS score, 2024
- 75
- Hospital affiliations
- 1
- Practice address
- 574 Lone Tree Dr, Mount Pleasant, SC 29464
- Practice phone
- Call (843) 856-5275
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Charleston Cornea & Refractive Surgery, PA
Mount Pleasant, South Carolina
Find Dr. O'Day'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. David G. O'Day is an ophthalmologist in Mount Pleasant, South Carolina
Dr. O'Day practices at Charleston Cornea & Refractive Surgery, PA in Mount Pleasant, South Carolina.
Dr. O'Day's NPI, 1477514602, was assigned on March 29, 2006. Dr. O'Day graduated from Georgetown University School of Medicine in 1985. Dr. O'Day holds South Carolina license 18999.
- NPI
- 1477514602NPI Registry (opens in a new tab)
- Medicare PAC ID
- 9537137203
- NPI enumeration date
- March 29, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (843) 856-5275
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 67
- Medical school graduation
- 1985
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. David G. O'Day practices at Charleston Cornea & Refractive Surgery, PA in Mount Pleasant, South Carolina
Dr. O'Day's primary practice is Charleston Cornea & Refractive Surgery, PA, at 574 Lone Tree Dr, Mount Pleasant, SC 29464 in Charleston County. The practice phone is (843) 856-5275.
- Charleston Cornea & Refractive Surgery, PA574 Lone Tree Dr, Mount Pleasant, SC 29464 · Charleston CountyPhone(843) 856-5275
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. David G. O'Day is affiliated with 4 sites of care and 2 medical groups
Dr. O'Day's primary practice is Charleston Cornea & Refractive Surgery, PA in Mount Pleasant, South Carolina. Dr. O'Day is also affiliated with Novant Health East Cooper Medical Center. Dmand AI also links Dr. O'Day to 2 more group practices and clinics and 2 medical groups, 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. David G. O'Day's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. O'Day practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Charleston Cornea & Refractive Surgery, PA | Available with a free account |
| +3 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. David G. O'Day is one of 269 ophthalmologists in South Carolina
Ophthalmology is Dr. O'Day's primary specialty in the NPI Registry, under taxonomy code 207W00000X. Dr. O'Day is licensed in South Carolina.
Specialties and state licenses
- Ophthalmology, South CarolinaPrimary
Ophthalmologists near Dr. O'Day
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. David G. O'Day billed Medicare for 1,312 services in 2024
CMS data shows 1,312 Medicare services from Dr. O'Day across 14 procedure codes in 2024, for 503 Medicare patients. Medicare paid $92,061 for them.
Dr. O'Day's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 8012024: 69214%
- Tests and treatments
- 2023: 8722024: 53339%
- Surgery
- 2023: 1412024: 8738%
- Imaging
- 2023: 172024: 0100%
- Lab and pathology
- 2023: 802024: 0100%
Where Dr. O'Day's Medicare services took place, 2024
- In an office1,24795%
- In a facility655%
Dr. O'Day compared with the South Carolina median for ophthalmologists, 2024
- Dr. O'Day
- South Carolina median
- Medicare services
- 1,312vs 2,44646% below
- Medicare patients
- 503vs 88143% below
- Part D claims
- 1,193vs 74859% above
Medians across 277 ophthalmologists in South Carolina with Dmand AI profiles that report each measure.
Dr. O'Day'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. O'Day?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. O'Day and other ophthalmologists in South Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. David G. O'Day treated 503 Medicare patients in 2024, average age 76
CMS counts 503 Medicare patients who saw Dr. O'Day in 2024. The largest group is 65 to 74, with 234 patients. 75% of them have high cholesterol, and 73% have high blood pressure. Their average risk score is 0.99, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. O'Day's median patient age at 73, with 55% women.
Dr. O'Day's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. O'Day's Medicare patients by sex, 2024
- Women29659%
- Men20741%
Chronic conditions among Dr. O'Day's Medicare patients, 2024
- High cholesterol75%
- High blood pressure73%
- Arthritis51%
- Diabetes29%
- Ischemic heart disease24%
- Anxiety23%
- Chronic kidney disease20%
- Mood disorders20%
Share of Medicare patients with each condition. A patient can have several.
Dr. O'Day's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 73
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. David G. O'Day wrote 1,328 Medicare Part D claims in 2024
In 2024, Dr. O'Day wrote 1,328 Medicare Part D claims for 276 patients. 51% of them were for generic drugs. CMS names the drug for 1,193 of them, across 19 drugs with 11 or more claims each, at $128,056 in total drug cost. In 2023, CMS named 1,140 claims across 22 drugs.
Dr. O'Day's Part D claims by kind of drug, 2024
- Generic671 claims51%
- Brand-name657 claims49%
Dr. O'Day'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. O'Day's Part D claims, 2024
- Antibiotics1%18 of 1,328 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: 1,1402024: 1,1935%
Drugs named by CMS: 19 in 2024, 22 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. David G. O'Day 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. O'Day for performance year 2024, reported individually. Dr. O'Day accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 113 procedures of cataract surgery by Dr. O'Day, more than 76% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- MIPS final score, 2024
- 75 of 100
Where Dr. O'Day ranks in Medicare procedure volume
- Cataract surgery
- 76th percentile113 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. David G. O'Day received $5,011 in industry payments from 2016 to 2025
CMS Open Payments shows 145 general payments to Dr. O'Day from 22 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 76% of the total. Bausch Health Americas, Inc. paid the most, $1,598.
General payments to Dr. O'Day by program year, 2016 to 2025
General payments to Dr. O'Day by kind, 2016 to 2025
- Food and beverage$3,82676%
- Travel and lodging$84717%
- Education$2715%
- Device or supply loans$681%
Companies that paid Dr. O'Day 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. David G. O'Day graduated from Georgetown University School of Medicine
Dr. O'Day graduated from Georgetown University School of Medicine in 1985.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. David G. O'Day'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. David G. O'Day
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. David G. O'Day's NPI number?
Dr. David G. O'Day's NPI number is 1477514602. It was assigned on March 29, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. David G. O'Day?
Dr. David G. O'Day is an ophthalmologist in Mount Pleasant, South Carolina. The primary specialty in the NPI Registry is Ophthalmology Physician (taxonomy code 207W00000X).
Where does Dr. David G. O'Day practice?
Dr. O'Day practices at 574 Lone Tree Dr, Mount Pleasant, SC 29464. Dr. O'Day's primary practice is Charleston Cornea & Refractive Surgery, PA in Mount Pleasant, South Carolina. Dmand AI also links Dr. O'Day to 2 group practices and clinics and 2 medical groups.
What is Dr. David G. O'Day's office phone number?
The practice phone on file for Dr. O'Day is (843) 856-5275.
What is Dr. David G. O'Day's medical license number?
Dr. O'Day holds South Carolina license 18999.
Which hospitals is Dr. David G. O'Day affiliated with?
Dr. O'Day is affiliated with Novant Health East Cooper Medical Center.
Does Dr. David G. O'Day accept Medicare?
Yes. CMS data shows Dr. O'Day billed Medicare for 1,312 services in 2024, and Dr. O'Day accepts Medicare assignment.
What is Dr. David G. O'Day's MIPS score?
Dr. O'Day's MIPS final score for performance year 2024 is 75 out of 100, reported individually.
How many Medicare patients does Dr. David G. O'Day see?
CMS counts 503 Medicare patients who saw Dr. O'Day in 2024, with an average age of 76.
What services does Dr. David G. O'Day bill to Medicare?
In 2024, Dr. O'Day's most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and eye exam or test (92250).
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Where did Dr. David G. O'Day go to medical school?
Dr. O'Day graduated from Georgetown University School of Medicine in 1985.
What drugs does Dr. David G. O'Day prescribe most?
In 2024 Medicare Part D data, Dr. O'Day's most prescribed drugs by claims were Prednisolone Acetate, Timolol Maleate and Latanoprost.
Has Dr. David G. O'Day received payments from drug or device companies?
CMS Open Payments shows $5,011 in general payments to Dr. O'Day from 22 companies from 2016 to 2025. The largest total came from Bausch Health Americas, Inc.
How long has Dr. David G. O'Day been practicing?
Dr. O'Day graduated from medical school in 1985, 41 years ago.
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