William Mitsos, M.D.
Obstetrics & Gynecology Physician · Greenville, SC
William Mitsos, M.D. is an obstetrics & gynecology physician with a practice address in Greenville, South Carolina, and NPI 1578533774, issued on Jan 23, 2006. Check the license (South Carolina 88898, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- William Mitsos
- Credential
- M.D.
- Primary taxonomy
- Obstetrics & Gynecology Physician 207V00000X
- License numbers
- 88898 SC
MD052801L PA
Self-reported in NPPES; status is on the state search - Practice location
- 1120 Grove RD, Greenville, SC 29605
- Phone
- (864) 455-8897
- Enumerated
- Jan 23, 2006
- Record last updated
- Aug 2, 2024
- Fax
- (864) 455-8555
- Medicare enrollment
- Enrolled (PECOS I20240718001004); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest obstetrics & gynecology physician records → All 752 in South Carolina → Look up another NPI →
Also registered at 1120 Grove RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Suzan Alexander, CNMAdvanced Practice Midwife1528024551
- Autumn Anders, WHNPWomen's Health Nurse Practitioner1619520202
- Chidimma AnunobiObstetrics & Gynecology Physician1326920539
- Kathryn Arflack, APRN CNMMidwife1124137005
- Zachary BerryObstetrics & Gynecology Physician1801690888
- Lynnette BeyerleFamily Nurse Practitioner1194206540
Verify William Mitsos in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 88898Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
88% fewer Medicare Part D claims than the average obstetrics & gynecology physician in 2024
19 Medicare Part D claims, against an average of 165 among the 28,733 providers of this specialty who prescribed in Part D.
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.
Bills Medicare through one group practice
- Prisma Health University Medical GroupGreenville, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William Mitsos among 752 obstetrics & gynecology physician records in South Carolina
William Mitsos, M.D. is one of 752 obstetrics & gynecology physician records with a practice address in South Carolina. 80% 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, 54% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 64% of these records are
- Graduated1990 · median 2006 among the 477 with a school on file
- Record last updated2024 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207V00000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
152 obstetrics & gynecology physician records list a practice address in Greenville
They are 152 of the 10,264 NPPES records with a practice address in Greenville, and 752 obstetrics & gynecology physician records in South Carolina.
All 752 in South Carolina → Every provider in Greenville → Obstetrics & Gynecology Physician nationwide →
The 8 obstetrics & gynecology physician records with the nearest ZIP codes
- Jonathan Bailey, M.D.Greenville, SC 296051487697504
- William Coleman, M.D.Greenville, SC 296051275572588
- Leroy Cook, M.D.Greenville, SC 296051184651986
- Lauren Demosthenes, M.D.Greenville, SC 296051871538629
- Bruce Drukker, M.D.Greenville, SC 296051285671115
- Thompson Gailey, M.D.Greenville, SC 296051336188382
- Roger Gower, M.D.Greenville, SC 296051164462511
- George Helmrich, MDGreenville, SC 296051700828316
Common questions
What is William Mitsos, M.D.'s NPI number?
William Mitsos, M.D.'s National Provider Identifier (NPI) is 1578533774, issued on Jan 23, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William Mitsos, M.D. located?
The NPPES record lists a practice address at 1120 Grove RD, Greenville, SC, 29605. Phone: (864) 455-8897. Providers update this record themselves, so call before visiting.
How can I verify William Mitsos, M.D.'s license?
NPPES lists South Carolina license number 88898, 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 William Mitsos, M.D. prescribe under Medicare Part D?
In 2024, William Mitsos, M.D. had 19 Medicare Part D claims; the average among obstetrics & gynecology physician prescribers was 165. 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.