NPPES file of Aug 9, 2026

Sebastian Siadecki, M.D.

Emergency Medicine Physician · Greensboro, NC

Sebastian Siadecki, M.D. is an emergency medicine physician with a practice address in Greensboro, North Carolina, and NPI 1134356652, issued on Jun 11, 2009. Check the license (North Carolina 2018-00595, as entered in NPPES) on the North Carolina Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1134356652
Name
Sebastian Siadecki
Credential
M.D.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
2018-00595 NC
265460 NY
Self-reported in NPPES; status is on the state search
Practice location
1200 N Elm St, Greensboro, NC 27401
Phone
(336) 832-7000
Enumerated
Jun 11, 2009
Record last updated
Oct 12, 2022
Medicare enrollment
Enrolled (PECOS I20180727001710); accepts Medicare assignment
Medical or professional school
Northwestern University Feinberg Medical School, 2009
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
Download card Updates feed

Also registered at 1200 N Elm St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Caroline Aberman, PA-CPhysician Assistant1477180123
  2. Elizabeth Agnew, D.O.Internal Medicine Physician1043433840
  3. Gabrielle AielloFamily Medicine Physician1295475200
  4. Olakunle Akintemi, M.D.Pediatrics Physician1609834175
  5. Vijaya Akula, M.D.,Internal Medicine Physician1407132228
  6. Christina Albert, MDFamily Medicine Physician1003377870

Verify Sebastian Siadecki in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNorth Carolina Medical Board
    Search for license 2018-00595
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the North Carolina license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

6% fewer Medicare Part D claims than the average emergency medicine physician in 2024

213 Medicare Part D claims for 144 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. 41 claims were for opioids.

  1. Sebastian Siadecki213
  2. Specialty average226

Most prescribed

  1. Cephalexin25 claims
  2. Prednisone22 claims
  3. Tramadol Hcl20 claims
  4. Oxycodone-Acetaminophen15 claims
  5. Ondansetron Odt14 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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Wake Forest Emergency ProvidersBurlington, NC

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Sebastian Siadecki among 2,094 emergency medicine physician records in North Carolina

Sebastian Siadecki, M.D. is one of 2,094 emergency medicine physician records with a practice address in North Carolina. 81% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 52% of them.

  • NPI issued2009 · 52% of these records are older, 45% newer
  • In a Medicare fileYes · 81% of these records are
  • In the CMS Doctors and Clinicians fileYes · 63% of these records are
  • Graduated2009 · median 2012 among the 1,317 with a school on file
  • Record last updated2022 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a North Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Emergency Medicine Physician providers in North Carolina

There are 2,094 emergency medicine physician records in North Carolina.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Anthony Allen, MDGreensboro, NC 274011609828987
  2. Robert Beaton Jr., MDGreensboro, NC 274011871557850
  3. Brian Cook, MDGreensboro, NC 274011730144536
  4. Douglas Delo, MDGreensboro, NC 274011376596973
  5. Pauline Hixson, MDGreensboro, NC 274011083665228
  6. Sam Jacubowitz, MDGreensboro, NC 274011720043508
  7. Iva Knapp, MDGreensboro, NC 274011962467167
  8. Jon Knapp, MDGreensboro, NC 274011871558072

Common questions

What is Sebastian Siadecki, M.D.'s NPI number?

Sebastian Siadecki, M.D.'s National Provider Identifier (NPI) is 1134356652, issued on Jun 11, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Sebastian Siadecki, M.D. located?

The NPPES record lists a practice address at 1200 N Elm St, Greensboro, NC, 27401. Phone: (336) 832-7000. Providers update this record themselves, so call before visiting.

How can I verify Sebastian Siadecki, M.D.'s license?

NPPES lists North Carolina license number 2018-00595, as entered by the provider. Search the North Carolina Medical Board at https://portal.ncmedboard.org/verification/search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Sebastian Siadecki, M.D. prescribe under Medicare Part D?

In 2024, Sebastian Siadecki, M.D. had 213 Medicare Part D claims for 144 beneficiaries; the average among emergency medicine physician prescribers was 226. Part D covers Medicare prescriptions only.

What is Sebastian Siadecki, M.D.'s MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.