Dr. Megan O'Neill Witt, MD
- Medicare services, 2024
- 1,391
- Medicare patients, 2024
- 150
- Part D claims, 2024
- 2,553
- Hospital affiliations
- 6
- Industry payments
- $2,805
- Practice address
- 877 W Faris Rd, Greenville, SC 29605
- Practice phone
- Call (864) 454-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Prisma Health University Medical Group
Greenville, South Carolina
Find Dr. Witt'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. Megan O'Neill Witt is an internist in Greenville, South Carolina
Dr. Witt practices at Prisma Health University Medical Group in Greenville, South Carolina.
Dr. Witt's NPI, 1699902213, was assigned on June 22, 2009. Dr. Witt graduated from Medical University of South Carolina College of Medicine in 2009. Dr. Witt holds South Carolina license 31850.
- NPI
- 1699902213NPI Registry (opens in a new tab)
- Medicare PAC ID
- 7416103825
- NPI enumeration date
- June 22, 2009
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (864) 454-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Female
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Megan O'Neill Witt practices at Prisma Health University Medical Group in Greenville, South Carolina
Dr. Witt's primary practice is Prisma Health University Medical Group, at 877 W Faris Rd, Greenville, SC 29605 in Greenville County. The practice phone is (864) 454-2000.
- Prisma Health University Medical Group877 W Faris Rd, Greenville, SC 29605 · Greenville CountyPhone(864) 454-2000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. Megan O'Neill Witt is affiliated with 9 sites of care and 1 medical group
Dr. Witt's primary practice is Prisma Health University Medical Group in Greenville, South Carolina. Dr. Witt is also affiliated with Prisma Health Greenville Memorial Hospital. The medical group on file is Prisma Health Medical Group. Dmand AI also links Dr. Witt to 5 more hospitals, 1 group practice or clinic and 1 home health agency, 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. Megan O'Neill Witt's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Witt practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Prisma Health University Medical Group | Available with a free account |
| +8 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Megan O'Neill Witt is one of 1,707 internists in South Carolina
Internal medicine is Dr. Witt's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Witt is licensed in South Carolina.
Specialties and state licenses
- Internal medicine, South CarolinaPrimary
Internists near Dr. Witt
Counts of internists 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. Megan O'Neill Witt billed Medicare for 1,391 services in 2024
CMS data shows 1,391 Medicare services from Dr. Witt across 11 procedure codes in 2024, for 150 Medicare patients. Medicare paid $71,198 for them. Every service was in an office.
Dr. Witt's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 6622024: 1,02755%
- Other services
- 2023: 1572024: 337115%
- Tests and treatments
- 2023: 272024: 27No change
Dr. Witt compared with the South Carolina median for internists, 2024
- Dr. Witt
- South Carolina median
- Medicare services
- 1,391vs 74088% above
- Medicare patients
- 150vs 25842% below
- Part D claims
- 2,004vs 3316.1 times
Medians across 1,708 internists in South Carolina with Dmand AI profiles that report each measure.
Dr. Witt'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. Witt?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Witt and other internists in South Carolina.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Megan O'Neill Witt treated 150 Medicare patients in 2024, average age 73
CMS counts 150 Medicare patients who saw Dr. Witt in 2024. The largest group is 65 to 74, with 80 patients. 71% of them have high cholesterol, and 64% have high blood pressure. Their average risk score is 0.91, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Witt's median patient age at 57, with 82% women.
Dr. Witt's Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Witt's Medicare patients by sex, 2024
- Women11979%
- Men3121%
Chronic conditions among Dr. Witt's Medicare patients, 2024
- High cholesterol71%
- High blood pressure64%
- Arthritis41%
- Anxiety34%
- Depression29%
- Mood disorders29%
- Atrial fibrillation18%
- Cancer18%
Share of Medicare patients with each condition. A patient can have several.
Dr. Witt's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 57
Patient panel by sex, all payers
- Women82%
- Men17%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Megan O'Neill Witt wrote 2,553 Medicare Part D claims in 2024
In 2024, Dr. Witt wrote 2,553 Medicare Part D claims for 250 patients. 86% of them were for generic drugs. CMS names the drug for 2,004 of them, across 58 drugs with 11 or more claims each, at $167,498 in total drug cost. In 2023, CMS named 1,954 claims across 56 drugs.
Dr. Witt's Part D claims by kind of drug, 2024
- Generic2,195 claims86%
- Brand-name338 claims13%
- Other20 claims1%
Dr. Witt'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. Witt's Part D claims, 2024
- Opioids1%34 of 2,553 claims
- Antibiotics2%48 of 2,553 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: 1,9542024: 2,0043%
Drugs named by CMS: 58 in 2024, 56 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. Megan O'Neill Witt offers telehealth to Medicare patients
Dr. Witt accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Witt as offering telehealth.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Source: Doctors and Clinicians National Downloadable File (CMS)
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Dr. Megan O'Neill Witt received $2,805 in industry payments from 2016 to 2025
CMS Open Payments shows 140 general payments to Dr. Witt from 35 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 85% of the total. Eli Lilly and Company paid the most, $279.
General payments to Dr. Witt by program year, 2016 to 2025
General payments to Dr. Witt by kind, 2016 to 2025
- Food and beverage$2,37485%
- Device or supply loans$27310%
- Gifts$1596%
Companies that paid Dr. Witt 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. Megan O'Neill Witt graduated from Medical University of South Carolina College of Medicine
Dr. Witt graduated from Medical University of South Carolina College of Medicine in 2009.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Megan O'Neill Witt'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) |
| 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. Megan O'Neill Witt
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. Megan O'Neill Witt's NPI number?
Dr. Megan O'Neill Witt's NPI number is 1699902213. It was assigned on June 22, 2009, and it is active in the NPI Registry.
What kind of doctor is Dr. Megan O'Neill Witt?
Dr. Megan O'Neill Witt is an internist in Greenville, South Carolina. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Megan O'Neill Witt practice?
Dr. Witt practices at 877 W Faris Rd, Greenville, SC 29605. Dr. Witt's primary practice is Prisma Health University Medical Group in Greenville, South Carolina. Dmand AI also links Dr. Witt to 5 hospitals, 1 group practice or clinic and 1 home health agency.
What is Dr. Megan O'Neill Witt's office phone number?
The practice phone on file for Dr. Witt is (864) 454-2000.
What is Dr. Megan O'Neill Witt's medical license number?
Dr. Witt holds South Carolina license 31850.
Which hospitals is Dr. Megan O'Neill Witt affiliated with?
Dr. Witt is affiliated with Prisma Health Greenville Memorial Hospital. Dmand AI links Dr. Witt to 5 more hospitals.
What medical group is Dr. Megan O'Neill Witt part of?
Dr. Witt is linked to Prisma Health Medical Group.
Does Dr. Megan O'Neill Witt accept Medicare?
Yes. CMS data shows Dr. Witt billed Medicare for 1,391 services in 2024, and Dr. Witt accepts Medicare assignment.
Does Dr. Megan O'Neill Witt offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Witt as offering telehealth services.
How many Medicare patients does Dr. Megan O'Neill Witt see?
CMS counts 150 Medicare patients who saw Dr. Witt in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
What services does Dr. Megan O'Neill Witt bill to Medicare?
In 2024, Dr. Witt's most billed Medicare services were care management and other visits (99490), office visit, established patient (99214) and medicare service (G2211).
Where did Dr. Megan O'Neill Witt go to medical school?
Dr. Witt graduated from Medical University of South Carolina College of Medicine in 2009.
What drugs does Dr. Megan O'Neill Witt prescribe most?
In 2024 Medicare Part D data, Dr. Witt's most prescribed drugs by claims were Levothyroxine Sodium, Atorvastatin Calcium and Losartan Potassium.
Has Dr. Megan O'Neill Witt received payments from drug or device companies?
CMS Open Payments shows $2,805 in general payments to Dr. Witt from 35 companies from 2016 to 2025. The largest total came from Eli Lilly and Company.
How long has Dr. Megan O'Neill Witt been practicing?
Dr. Witt graduated from medical school in 2009, 17 years ago.
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