John Mark Mitchiner, M.D.
Pediatrics Physician · Sumter, SC
John Mark Mitchiner, M.D. is a pediatrics physician with a practice address in Sumter, South Carolina, and NPI 1144220088, issued on Jul 21, 2005. Check the license (South Carolina 183090, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- John Mark Mitchiner
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- 183090 SC
Self-reported in NPPES; status is on the state search - Practice location
- 237 Church St, Sumter, SC 29150
- Phone
- (803) 775-6311
- Enumerated
- Jul 21, 2005
- Record last updated
- Aug 2, 2010 (not updated in 16 years: call before relying on the address or phone)
- Fax
- (803) 778-5131
- Medicaid ID
- 183090 SC
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 1,136 in South Carolina → Look up another NPI →
Also registered at 237 Church St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Melissa Arscott, M.D.Pediatrics Physician1841290780
- Gabriel ClintonPediatrics Physician1619541166
- James Durant, M.D.Pediatrics Physician1437159365
- Michele Easler, MDPediatrics Physician1215249222
- Jason Grier, M.D.Pediatrics Physician1679605018
- John James, M.D.Pediatrics Physician1558710277
Verify John Mark Mitchiner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 183090Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $146.98
8 payments; by number, the most common kind was food and beverage; the largest payer was Pfizer Inc. The 21,580 providers of this specialty with any payment received $842.05 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.
John Mark Mitchiner among 1,136 pediatrics physician records in South Carolina
John Mark Mitchiner, M.D. is one of 1,136 pediatrics physician records with a practice address in South Carolina. 48% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 93% newer
- In a Medicare fileYes · 48% of these records are
- In the CMS Doctors and Clinicians fileNo · 9% of these records are
- Record last updated2010 · 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 208000000X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
14 pediatrics physician records list a practice address in Sumter
They are 14 of the 1,265 NPPES records with a practice address in Sumter, and 1,136 pediatrics physician records in South Carolina.
All 1,136 in South Carolina → Every provider in Sumter → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
- Melissa Arscott, M.D.Sumter, SC 291501841290780
- Teresa Buschor, M.D.Sumter, SC 291501750381604
- Gabriel ClintonSumter, SC 291501619541166
- James Durant, M.D.Sumter, SC 291501437159365
- Michele Easler, MDSumter, SC 291501215249222
- Jason Grier, M.D.Sumter, SC 291501679605018
- Sydney GualtieriSumter, SC 291501215632617
- John James, M.D.Sumter, SC 291501558710277
Common questions
What is John Mark Mitchiner, M.D.'s NPI number?
John Mark Mitchiner, M.D.'s National Provider Identifier (NPI) is 1144220088, issued on Jul 21, 2005. An NPI identifies a provider in billing; it is not a license.
Where is John Mark Mitchiner, M.D. located?
The NPPES record lists a practice address at 237 Church St, Sumter, SC, 29150. Phone: (803) 775-6311. Providers update this record themselves, so call before visiting.
How can I verify John Mark Mitchiner, M.D.'s license?
NPPES lists South Carolina license number 183090, 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.
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.