James Sierakowski, DO
Pediatric Emergency Medicine (Pediatrics) Physician · Greenville, SC
James Sierakowski, DO is a pediatric emergency medicine (pediatrics) physician with a practice address in Greenville, South Carolina, and NPI 1346539004, issued on Apr 4, 2011. Check the license (South Carolina 39919, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- James Sierakowski
- Credential
- DO
- Primary taxonomy
- Pediatric Emergency Medicine (Pediatrics) Physician 2080P0204X
- License numbers
- 39919 SC
OS12748 FL
Self-reported in NPPES; status is on the state search - Practice location
- 701 Grove RD, Greenville, SC 29605
- Phone
- (864) 455-7000
- Enumerated
- Apr 4, 2011
- Record last updated
- Jun 8, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 399198 SC
- Entity
- Type 1 · individual
8 nearest pediatric emergency medicine (pediatrics) physician records → All 33 in South Carolina → Look up another NPI →
Also registered at 701 Grove RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kira Adkins, PHARMDPharmacist1629704457
- Brandford Adobaw, MDEmergency Medicine Physician1871116178
- John AhlertSurgery Physician1841995446
- Virginia Alexander, M.D.Hospice and Palliative Medicine (Internal Medicine) Physician1801123971
- Brian Allen, D.O.Hospitalist Physician1184851495
- Dawn Allen, NNPCritical Care Neonatal Nurse Practitioner1164836227
Verify James Sierakowski in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 39919Check 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: $166.98
9 payments; by number, the most common kind was food and beverage; the largest payer was Corium, LLC. The 223 providers of this specialty with any payment received $333.66 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.
James Sierakowski among 33 pediatric emergency medicine (pediatrics) physician records in South Carolina
James Sierakowski, DO is one of 33 pediatric emergency medicine (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 2011, is newer than 58% of them.
- NPI issued2011 · 58% of these records are older, 36% newer
- In a Medicare fileYes · 48% of these records are
- In the CMS Doctors and Clinicians fileNo · 45% of these records are
- Record last updated2021 · 45% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2080P0204X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Pediatric Emergency Medicine (Pediatrics) Physician providers in South Carolina
There are 33 pediatric emergency medicine (pediatrics) physician records in South Carolina.
All 33 in South Carolina → Every provider in Greenville → Pediatric Emergency Medicine (Pediatrics) Physician nationwide →
The 8 pediatric emergency medicine (pediatrics) physician records with the nearest ZIP codes
- Bradley Beamon, M.D.Greenville, SC 296051063890416
- Zachary Burroughs, M.D.Greenville, SC 296051922397934
- Erika Crawford, MDGreenville, SC 296051679993125
- Susan Demartini, MDGreenville, SC 296051275755019
- Ann Dietrich, MDGreenville, SC 296051972505915
- Jacqueline Granger, M.D.Greenville, SC 296051457438368
- Kathleen Jackson, MDGreenville, SC 296051801323993
- Micah Keeno, DOGreenville, SC 296051487146692
Common questions
What is James Sierakowski, DO's NPI number?
James Sierakowski, DO's National Provider Identifier (NPI) is 1346539004, issued on Apr 4, 2011. An NPI identifies a provider in billing; it is not a license.
Where is James Sierakowski, DO located?
The NPPES record lists a practice address at 701 Grove RD, Greenville, SC, 29605. Phone: (864) 455-7000. Providers update this record themselves, so call before visiting.
How can I verify James Sierakowski, DO's license?
NPPES lists South Carolina license number 39919, 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.