Dr. Mark Leslie Witkowski, DO
- Medicare services, 2024
- 745
- Medicare patients, 2026
- 400
- Part D claims, 2026
- 232
- MIPS score, 2026
- 75
- Hospital affiliations
- 2
- Practice address
- 4070 Hwy 17, Murrells Inlet, SC 29576
- Practice phone
- Call (843) 652-1000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Witkowski'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. Mark Leslie Witkowski is a general surgeon in Murrells Inlet, South Carolina
Dr. Witkowski practices at Tidelands Waccamaw Community Hospital in Murrells Inlet, South Carolina, part of Medical University of South Carolina.
Dr. Witkowski's NPI, 1982998100, was assigned on June 6, 2011. Dr. Witkowski holds Iowa license R9182.
- NPI
- 1982998100NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0941451389
- NPI enumeration date
- June 6, 2011
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (843) 652-1000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 41
- Medical school graduation
- 2011
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Mark Leslie Witkowski practices at Tidelands Waccamaw Community Hospital in Murrells Inlet, South Carolina
Dr. Witkowski's primary practice is Tidelands Waccamaw Community Hospital, at 4070 Hwy 17, Murrells Inlet, SC 29576 in Horry County. The practice phone is (843) 652-1000.
- Tidelands Waccamaw Community Hospital4070 Hwy 17, Murrells Inlet, SC 29576 · Horry CountyPhone(843) 652-1000
Source: Dmand AI Affiliation Data
Dr. Mark Leslie Witkowski is affiliated with 3 sites of care and 2 medical groups
Dr. Witkowski's primary practice is Tidelands Waccamaw Community Hospital in Murrells Inlet, South Carolina, part of Medical University of South Carolina. Dr. Witkowski is also affiliated with Tidelands Georgetown Memorial Hospital. The medical group on file is MUSC Community Physicians. Dmand AI also links Dr. Witkowski to 1 more group practice or clinic and 1 medical group, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Mark Leslie Witkowski's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Witkowski practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Tidelands Waccamaw Community Hospital | 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. Mark Leslie Witkowski is one of 506 general surgeons in South Carolina
Surgery is Dr. Witkowski's primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Witkowski is licensed in Iowa.
Specialties and state licenses
- Surgery, IowaPrimary
General surgeons near Dr. Witkowski
Counts of general surgeons 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. Mark Leslie Witkowski billed Medicare for 745 services in 2024
CMS data shows 745 Medicare services from Dr. Witkowski across 16 procedure codes in 2024, for 400 Medicare patients. Medicare paid $85,305 for them.
Dr. Witkowski's Medicare services by type, 2024
- Office and hospital visits552
- Surgery107
- Imaging86
Where Dr. Witkowski's Medicare services took place, 2024
- In an office30341%
- In a facility44259%
Dr. Witkowski compared with the South Carolina median for general surgeons, 2024
- Dr. Witkowski
- South Carolina median
- Medicare services
- 745vs 2652.8 times
- Medicare patients
- 400vs 1782.2 times
- Part D claims
- 160vs 543.0 times
Medians across 500 general surgeons in South Carolina with Dmand AI profiles that report each measure.
Dr. Witkowski'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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Mark Leslie Witkowski treated 400 Medicare patients in 2026, average age 74
CMS counts 400 Medicare patients who saw Dr. Witkowski in 2026. The largest group is 65 to 74, with 203 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 4% are also on Medicaid. Their average risk score is 1.59, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Witkowski's median patient age at 70, with 52% women.
Dr. Witkowski's Medicare patients by age, 2026
Dr. Witkowski's Medicare patients by sex, 2026
- Women19449%
- Men20652%
Chronic conditions among Dr. Witkowski's Medicare patients, 2026
- High blood pressure75%
- High cholesterol75%
- Arthritis51%
- Anxiety32%
- Ischemic heart disease32%
- Diabetes31%
- Cancer28%
- Atrial fibrillation27%
Share of Medicare patients with each condition. A patient can have several.
Dr. Witkowski's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2026 data
Dr. Mark Leslie Witkowski wrote 232 Medicare Part D claims in 2026
In 2026, Dr. Witkowski wrote 232 Medicare Part D claims for 157 patients. 97% of them were for generic drugs. CMS names the drug for 160 of them, across 4 drugs with 11 or more claims each, at $1,127 in total drug cost.
Dr. Witkowski's Part D claims by kind of drug, 2026
- Generic226 claims97%
- Brand-name and other6 claims3%
Dr. Witkowski'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. Witkowski's Part D claims, 2026
- Opioids49%114 of 232 claims
- Antibiotics35%82 of 232 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2026 data
Dr. Mark Leslie Witkowski scored 75 out of 100 in Medicare's MIPS program for 2026
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 out of 100 for Dr. Witkowski for performance year 2026, reported as part of a group. Dr. Witkowski accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Witkowski as offering telehealth. CMS counts 41 procedures of hernia repair (minimally invasive) by Dr. Witkowski, more than 97% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- MIPS final score, 2026
- 75 of 100
Where Dr. Witkowski ranks in Medicare procedure volume
- Hernia repair (minimally invasive)
- 97th percentile41 procedures
- Colonoscopy
- 56th percentile35 procedures
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 48th percentile17 procedures
- Hernia repair - groin (open)
- 91st percentile12 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), 2026 data; and Doctors and Clinicians Utilization Data (CMS)
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Dr. Mark Leslie Witkowski received $129 in industry payments from 2024 to 2025
CMS Open Payments shows 4 general payments to Dr. Witkowski from 4 drug and device companies from 2024 to 2025. Food and beverage make up the largest share, 100% of the total. Sanara MedTech Inc. paid the most, $40.
General payments to Dr. Witkowski by program year, 2024 to 2025
Companies that paid Dr. Witkowski the most, 2024 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Mark Leslie Witkowski'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 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) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| 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. Mark Leslie Witkowski
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. Mark Leslie Witkowski's NPI number?
Dr. Mark Leslie Witkowski's NPI number is 1982998100. It was assigned on June 6, 2011, and it is active in the NPI Registry.
What kind of doctor is Dr. Mark Leslie Witkowski?
Dr. Mark Leslie Witkowski is a general surgeon in Murrells Inlet, South Carolina. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. Mark Leslie Witkowski practice?
Dr. Witkowski practices at 4070 Hwy 17, Murrells Inlet, SC 29576. Dr. Witkowski's primary practice is Tidelands Waccamaw Community Hospital in Murrells Inlet, South Carolina, part of Medical University of South Carolina. Dmand AI also links Dr. Witkowski to 1 group practice or clinic and 1 medical group, and a free account names each one.
What is Dr. Mark Leslie Witkowski's office phone number?
The practice phone on file for Dr. Witkowski is (843) 652-1000. Dmand AI also checks direct phone and mobile numbers, available with a free account.
What is Dr. Mark Leslie Witkowski's email address?
Dmand AI checks professional and personal email addresses for Dr. Witkowski through healthcare-specific waterfall enrichment. They are available with a free Dmand AI account.
What is Dr. Mark Leslie Witkowski's medical license number?
Dr. Witkowski holds Iowa license R9182.
Which hospitals is Dr. Mark Leslie Witkowski affiliated with?
Dr. Witkowski practices at Tidelands Waccamaw Community Hospital in Murrells Inlet, South Carolina. Dr. Witkowski is also affiliated with Tidelands Georgetown Memorial Hospital.
What medical group is Dr. Mark Leslie Witkowski part of?
Dr. Witkowski is linked to MUSC Community Physicians. Dmand AI links Dr. Witkowski to 1 more medical group, named with a free account.
Who does Dr. Mark Leslie Witkowski practice with?
Dmand AI links 1,470 HCPs to Dr. Witkowski's primary medical group, 36 of them general surgeons. A free account lists them, with verified contacts.
Does Dr. Mark Leslie Witkowski accept Medicare?
Yes. CMS data shows Dr. Witkowski billed Medicare for 745 services in 2024, and Dr. Witkowski accepts Medicare assignment.
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Does Dr. Mark Leslie Witkowski offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Witkowski as offering telehealth services.
What is Dr. Mark Leslie Witkowski's MIPS score?
Dr. Witkowski's MIPS final score for performance year 2026 is 75 out of 100, reported as part of a group.
How many Medicare patients does Dr. Mark Leslie Witkowski see?
CMS counts 400 Medicare patients who saw Dr. Witkowski in 2026, with an average age of 74.
What services does Dr. Mark Leslie Witkowski bill to Medicare?
In 2024, Dr. Witkowski's most billed Medicare services were hospital inpatient care (99232), office visit, established patient (99213) and hospital inpatient care (99222).
What drugs does Dr. Mark Leslie Witkowski prescribe most?
In 2024 Medicare Part D data, Dr. Witkowski's most prescribed drugs by claims were Oxycodone-Acetaminophen, Metronidazole and Amoxicillin-Clavulanate Potass.
Has Dr. Mark Leslie Witkowski received payments from drug or device companies?
CMS Open Payments shows $129 in general payments to Dr. Witkowski from 4 companies from 2024 to 2025. The largest total came from Sanara MedTech Inc.
How long has Dr. Mark Leslie Witkowski been practicing?
Dr. Witkowski graduated from medical school in 2011, 15 years ago.
What EHR does Dr. Mark Leslie Witkowski's practice use?
Dmand AI tracks the EHR system at Tidelands Waccamaw Community Hospital and at 2 more sites and 1 medical group. The vendor and product are available with a free Dmand AI account.
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