William T. Katsiyiannis, MD
Clinical Cardiac Electrophysiology Physician · Minneapolis, MN
William T. Katsiyiannis, MD is a clinical cardiac electrophysiology physician with a practice address in Minneapolis, Minnesota, and NPI 1811953987, issued on Apr 26, 2006. Check the license (Minnesota 46466, as entered in NPPES) on the Minnesota Board of Medical Practice; the Medicare figures below come from public CMS files.
- Name
- William T. Katsiyiannis
- Credential
- MD
- Primary taxonomy
- Clinical Cardiac Electrophysiology Physician 207RC0001X
- License number
- 46466 MN
Self-reported in NPPES; status is on the state search - Practice location
- 800 E 28TH St, Minneapolis, MN 55407
- Phone
- (612) 775-3030
- Enumerated
- Apr 26, 2006
- Record last updated
- Mar 11, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20040617000644); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical cardiac electrophysiology physician records → All 77 in Minnesota → Look up another NPI →
Also registered at 800 E 28TH St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Raed Abdelhadi, MDClinical Cardiac Electrophysiology Physician1518057413
- Anthony Abeln, OTOccupational Therapist1063793503
- Samuel Abelson, MDEmergency Medicine Physician1508963331
- Lda Abreu, ARNPNeonatal Nurse Practitioner1790730265
- Robyn Achmann, APNP-BCAdult Health Nurse Practitioner1871862219
- Mary Adam, CNSAdult Health Clinical Nurse Specialist1720398746
Verify William T. Katsiyiannis in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMinnesota Board of Medical Practice
Search for license 46466Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
39% fewer Medicare Part D claims than the average clinical cardiac electrophysiology physician in 2024
1,040 Medicare Part D claims for 193 beneficiaries, against an average of 1,710 among the 3,173 providers of this specialty who prescribed in Part D. Brand-name drugs were 41% of claims.
Most prescribed
- Eliquis352 claims
- Flecainide Acetate142 claims
- Metoprolol Succinate113 claims
- Sotalol73 claims
- Xarelto65 claims
- Propafenone Hcl32 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): 83.5 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: $162.24
2 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
- Allina Health SystemBaxter, MN
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William T. Katsiyiannis among 77 clinical cardiac electrophysiology physician records in Minnesota
William T. Katsiyiannis, MD is one of 77 clinical cardiac electrophysiology physician records with a practice address in Minnesota. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 52% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 75% of these records are
- Graduated1996 · median 2004 among the 58 with a school on file
- Record last updated2021 · 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 207RC0001X and a Minnesota 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 Minnesota
There are 77 clinical cardiac electrophysiology physician records in Minnesota.
All 77 in Minnesota → Every provider in Minneapolis → Clinical Cardiac Electrophysiology Physician nationwide →
The 8 clinical cardiac electrophysiology physician records with the nearest ZIP codes
- Raed Abdelhadi, MDMinneapolis, MN 554071518057413
- Adrian Almquist, MDMinneapolis, MN 554071255390779
- Charles Gornick, MDMinneapolis, MN 554071376597237
- Kristopher Krueger, MD, PHDMinneapolis, MN 554071821013111
- Daniel Melby, MDMinneapolis, MN 554071982665139
- Joellyn Moore, M.D.Minneapolis, MN 554071235306812
- Manjunath Pai, MDMinneapolis, MN 554071225299845
- Jay Sengupta, M.D.Minneapolis, MN 554071821213562
Common questions
What is William T. Katsiyiannis, MD's NPI number?
William T. Katsiyiannis, MD's National Provider Identifier (NPI) is 1811953987, issued on Apr 26, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William T. Katsiyiannis, MD located?
The NPPES record lists a practice address at 800 E 28TH St, Minneapolis, MN, 55407. Phone: (612) 775-3030. Providers update this record themselves, so call before visiting.
How can I verify William T. Katsiyiannis, MD's license?
NPPES lists Minnesota license number 46466, as entered by the provider. Search the Minnesota Board of Medical Practice at https://mn.gov/boards/medical-practice/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does William T. Katsiyiannis, MD prescribe under Medicare Part D?
In 2024, William T. Katsiyiannis, MD had 1,040 Medicare Part D claims for 193 beneficiaries; the average among clinical cardiac electrophysiology physician prescribers was 1,710. Part D covers Medicare prescriptions only.
What is William T. Katsiyiannis, MD's MIPS final score?
The 2023 MIPS final score is 83.5 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.