Walter Robert Mazzei, MD
Clinical Cardiac Electrophysiology Physician · Columbia, SC
Walter Robert Mazzei, MD is a clinical cardiac electrophysiology physician with a practice address in Columbia, South Carolina, and NPI 1083948285, issued on Sep 22, 2009. Check the license (South Carolina 33468, as entered in NPPES) on the South Carolina Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Walter Robert Mazzei
- Credential
- MD
- Primary taxonomy
- Clinical Cardiac Electrophysiology Physician 207RC0001X
- License number
- 33468 SC
Self-reported in NPPES; status is on the state search - Practice location
- 8 Richland Medical Park Dr, Columbia, SC 29203
- Phone
- (803) 256-6511
- Enumerated
- Sep 22, 2009
- Record last updated
- Oct 2, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (803) 744-4731
- Medicaid ID
- 334686 SC
- Medicare enrollment
- Enrolled (PECOS I20110728000327); accepts Medicare assignment
- Medical or professional school
- Southern Illinois University School Of Medicine, 2004
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical cardiac electrophysiology physician records → All 59 in South Carolina → Look up another NPI →
Also registered at 8 Richland Medical Park Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Milton Alexander, MDCardiovascular Disease Physician1144229725
- Kurt Barringhaus, M.D.Interventional Cardiology Physician1588647416
- John Beard, MDClinical Cardiac Electrophysiology Physician1437149770
- Myron Bell, MDCardiovascular Disease Physician1467443481
- Ana Claudia Benevides Tadinac, MDNeurology Physician1619710746
- Matthew Cantrell, M.D.Interventional Cardiology Physician1336364264
Verify Walter Robert Mazzei in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersSouth Carolina Board of Medical Examiners
Search for license 33468Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
8% more Medicare Part D claims than the average clinical cardiac electrophysiology physician in 2024
1,849 Medicare Part D claims for 353 beneficiaries, against an average of 1,710 among the 3,173 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Eliquis373 claims
- Metoprolol Succinate162 claims
- Sotalol114 claims
- Flecainide Acetate105 claims
- Xarelto102 claims
- Metoprolol Tartrate96 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 MIPS final score for 2023 (Medicare payment program): 99.3 of 100
The Merit-based Incentive Payment System score is reported for this clinician. 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; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,785.63
94 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 3,167 providers of this specialty with any payment received $10,651.37 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
- Prisma Health Medical Group-MidlandsColumbia, SC
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Walter Robert Mazzei among 59 clinical cardiac electrophysiology physician records in South Carolina
Walter Robert Mazzei, MD is one of 59 clinical cardiac electrophysiology physician records with a practice address in South Carolina. 95% 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 59% of them.
- NPI issued2009 · 59% of these records are older, 34% newer
- In a Medicare fileYes · 95% of these records are
- In the CMS Doctors and Clinicians fileYes · 90% of these records are
- Graduated2004 · median 2006 among the 53 with a school on file
- Record last updated2019 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0001X and a South Carolina practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Clinical Cardiac Electrophysiology Physician providers in South Carolina
There are 59 clinical cardiac electrophysiology physician records in South Carolina.
All 59 in South Carolina → Every provider in Columbia → Clinical Cardiac Electrophysiology Physician nationwide →
The 8 clinical cardiac electrophysiology physician records with the nearest ZIP codes
- John Beard, MDColumbia, SC 292031437149770
- Paras Patel, M.D.Columbia, SC 292031225492895
- Todd Senn, MDColumbia, SC 292031972760056
- Sultan Siddique, M.D.Columbia, SC 292031417995259
- Donald Siddoway, MDColumbia, SC 292031235392093
- Gerald Bauknight, MDColumbia, SC 292041144279084
- Venkateshwar Gottipaty, MD, PHDColumbia, SC 292041750329108
- Francis Ugowe, M.D.Columbia, SC 292041154784759
Common questions
What is Walter Robert Mazzei, MD's NPI number?
Walter Robert Mazzei, MD's National Provider Identifier (NPI) is 1083948285, issued on Sep 22, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Walter Robert Mazzei, MD located?
The NPPES record lists a practice address at 8 Richland Medical Park Dr, Columbia, SC, 29203. Phone: (803) 256-6511. Providers update this record themselves, so call before visiting.
How can I verify Walter Robert Mazzei, MD's license?
NPPES lists South Carolina license number 33468, 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 Walter Robert Mazzei, MD prescribe under Medicare Part D?
In 2024, Walter Robert Mazzei, MD had 1,849 Medicare Part D claims for 353 beneficiaries; the average among clinical cardiac electrophysiology physician prescribers was 1,710. Part D covers Medicare prescriptions only.
What is Walter Robert Mazzei, MD's MIPS final score?
The 2023 MIPS final score is 99.3 of 100. 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.