David Michael Maziarz, M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Sioux Falls, SD
David Michael Maziarz, M.D. is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Sioux Falls, South Dakota, and NPI 1265643985, issued on May 24, 2007. Check the license (South Dakota 8762, as entered in NPPES) on the South Dakota Board of Medical and Osteopathic Examiners; the Medicare figures below come from public CMS files.
- Name
- David Michael Maziarz
- Credential
- M.D.
- Primary taxonomy
- Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
- License numbers
- 8762 SD
31426 SC
42677 TN
Self-reported in NPPES; status is on the state search - Practice location
- 1301 W 18TH St, Sioux Falls, SD 57105
- Phone
- (605) 312-2100
- Enumerated
- May 24, 2007
- Record last updated
- Jul 12, 2022
- Fax
- (605) 312-2101
- Medicare enrollment
- Enrolled (PECOS I20130522000340); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 15 in South Dakota → Look up another NPI →
Also registered at 1301 W 18TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kayla Adamek, NPNurse Practitioner1144008319
- Logan Adamek, ACNPC-AGNurse Practitioner1700757382
- Emily Ahlers, CNPFamily Nurse Practitioner1841851086
- Anna Anderson, NPNurse Practitioner1881372506
- Pamela Barthle, MSN ACNPNurse Practitioner1881837946
- Udit Bhatnagar, MDCardiovascular Disease Physician1386087963
Verify David Michael Maziarz in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Dakota Board of Medical and Osteopathic Examiners
Search for license 8762Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average thoracic surgery (cardiothoracic vascular surgery) physician in 2024
11 Medicare Part D claims, against an average of 101 among the 2,587 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.
The practice group's MIPS final score for 2023 (Medicare payment program): 78 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $312.84
10 payments; by number, the most common kind was food and beverage; the largest payer was Getinge USA Sales, LLC. The 4,047 providers of this specialty with any payment received $7,828.84 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
- Sanford ClinicSioux Falls, SD
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Michael Maziarz among 15 thoracic surgery (cardiothoracic vascular surgery) physician records in South Dakota
David Michael Maziarz, M.D. is one of 15 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in South Dakota. 73% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 67% of them.
- NPI issued2007 · 67% of these records are older, 20% newer
- In a Medicare fileYes · 73% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Record last updated2022 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208G00000X and a South Dakota practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in South Dakota
There are 15 thoracic surgery (cardiothoracic vascular surgery) physician records in South Dakota.
All 15 in South Dakota → Every provider in Sioux Falls → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →
The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes
- John Grehan, MD PHDSioux Falls, SD 571051275549784
- Verlyn Nykamp, M.D.Sioux Falls, SD 571051629075031
- Keung Ung, M.D.Sioux Falls, SD 571051972640498
- Luyando KalemboSioux Falls, SD 571061932615747
- Peter Andreone, MDSioux Falls, SD 571081811985211
- Brian Duxbury, DOSioux Falls, SD 571081093210965
- Steven Feldhaus, M.D.Sioux Falls, SD 571081649385451
- Paul Meyer, MDSioux Falls, SD 571081134174865
Common questions
What is David Michael Maziarz, M.D.'s NPI number?
David Michael Maziarz, M.D.'s National Provider Identifier (NPI) is 1265643985, issued on May 24, 2007. An NPI identifies a provider in billing; it is not a license.
Where is David Michael Maziarz, M.D. located?
The NPPES record lists a practice address at 1301 W 18TH St, Sioux Falls, SD, 57105. Phone: (605) 312-2100. Providers update this record themselves, so call before visiting.
How can I verify David Michael Maziarz, M.D.'s license?
NPPES lists South Dakota license number 8762, as entered by the provider. Search the South Dakota Board of Medical and Osteopathic Examiners at https://www.sdbmoe.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does David Michael Maziarz, M.D. prescribe under Medicare Part D?
In 2024, David Michael Maziarz, M.D. had 11 Medicare Part D claims; the average among thoracic surgery (cardiothoracic vascular surgery) physician prescribers was 101. Part D covers Medicare prescriptions only.
What is David Michael Maziarz, M.D.'s MIPS final score?
The 2023 MIPS final score is 78 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.