Mark J. Segal, MD
Anesthesiology Physician · Charleston, SC
Mark J. Segal, MD is an anesthesiology physician with a practice address in Charleston, South Carolina, and NPI 1396785267, issued on Jun 7, 2006. Check the license (South Carolina 19043, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Mark J. Segal
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License number
- 19043 SC
Self-reported in NPPES; status is on the state search - Practice location
- 125 Doughty St, Charleston, SC 29403
- Phone
- (843) 723-3441
- Enumerated
- Jun 7, 2006
- Record last updated
- Jul 22, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (843) 805-4040
- Medicaid ID
- 190439 SC
- Medicare enrollment
- Enrolled (PECOS I20110829000278); accepts Medicare assignment
- Medical or professional school
- University Of Arizona College Of Medicine, 1986
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 787 in South Carolina → Look up another NPI →
Also registered at 125 Doughty St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Randal Atkinson, MDAnesthesiology Physician1205882750
- Alexis Boyer, M.D.Anesthesiology Physician1730197567
- Abbigail BrunerCounselor1760354153
- James Bumgartner, M.D.Neurology Physician1477522845
- Stephen Campbell, MDAnesthesiology Physician1902853989
- William Carter, M.D..Urology Physician1558348482
Verify Mark J. Segal in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 19043Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
91% fewer Medicare Part D claims than the average anesthesiology physician in 2024
37 Medicare Part D claims, against an average of 402 among the 4,319 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $51.37
2 payments; by number, the most common kind was food and beverage; the largest payer was Mentor Worldwide LLC. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Anesthesia Services OF CharlestonCharleston, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark J. Segal among 787 anesthesiology physician records in South Carolina
Mark J. Segal, MD is one of 787 anesthesiology physician records with a practice address in South Carolina. 74% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 53% newer
- In a Medicare fileYes · 74% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1986 · median 2007 among the 530 with a school on file
- Record last updated2016 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
345 anesthesiology physician records list a practice address in Charleston
They are 345 of the 10,840 NPPES records with a practice address in Charleston, and 787 anesthesiology physician records in South Carolina.
All 787 in South Carolina → Every provider in Charleston → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Randal Atkinson, MDCharleston, SC 294031205882750
- Charles Clark, MDCharleston, SC 294031528012382
- John Colona, MDCharleston, SC 294031205880986
- William Cramer, MDCharleston, SC 294031982662409
- Robert Dhein, M.D.Charleston, SC 294031659354579
- Catherine Ellyn, MDCharleston, SC 294031013963560
- George Gratzick, MDCharleston, SC 294031285680124
- Judith Hood, MDCharleston, SC 294031265488894
Common questions
What is Mark J. Segal, MD's NPI number?
Mark J. Segal, MD's National Provider Identifier (NPI) is 1396785267, issued on Jun 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark J. Segal, MD located?
The NPPES record lists a practice address at 125 Doughty St, Charleston, SC, 29403. Phone: (843) 723-3441. Providers update this record themselves, so call before visiting.
How can I verify Mark J. Segal, MD's license?
NPPES lists South Carolina license number 19043, as entered by the provider. Search the South Carolina Board of Medical Examiners at https://verify.llronline.com/LicLookup/Med/Med.aspx?div=22. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark J. Segal, MD prescribe under Medicare Part D?
In 2024, Mark J. Segal, MD had 37 Medicare Part D claims; the average among anesthesiology physician prescribers was 402. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.