NPPES file of Aug 9, 2026

William Walter Wassynger, M.D.

Clinical Cardiac Electrophysiology Physician · Cookeville, TN

William Walter Wassynger, M.D. is a clinical cardiac electrophysiology physician with a practice address in Cookeville, Tennessee, and NPI 1700889888, issued on May 23, 2005. Check the license (Tennessee 37302, as entered in NPPES) on the Tennessee Board of Medical Examiners; 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
1700889888
Name
William Walter Wassynger
Credential
M.D.
Primary taxonomy
Clinical Cardiac Electrophysiology Physician 207RC0001X
License numbers
37302 TN
TP580 KY
Self-reported in NPPES; status is on the state search
Practice location
228 W 4TH St Ste 200, Cookeville, TN 38501
Phone
(931) 372-0405
Enumerated
May 23, 2005
Record last updated
Jun 17, 2022
Fax
(931) 372-0463
Medicaid IDs
3881608 TN
1510044 TN
Medicare enrollment
Enrolled (PECOS I20060106000734); accepts Medicare assignment
Medical or professional school
Columbia University College Of Physicians And Surgeons, 1989
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 228 W 4TH St Ste 200

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

  1. Keshia AbbottNurse Practitioner1700327236
  2. Vertilio Cornielle-Caamano, M.D.Cardiovascular Disease Physician1205272606
  3. Adrian Danchenko, MDCardiovascular Disease Physician1124027230
  4. Christopher DelkFamily Nurse Practitioner1174011753
  5. William DycusFamily Nurse Practitioner1861296808
  6. Taylor Fletcher, FNP-CFamily Nurse Practitioner1134086259

Verify William Walter Wassynger in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTennessee Board of Medical Examiners
    Search for license 37302
    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 Tennessee 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.

32% more Medicare Part D claims than the average clinical cardiac electrophysiology physician in 2024

2,262 Medicare Part D claims for 444 beneficiaries, against an average of 1,710 among the 3,173 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.

  1. William Wassynger2,262
  2. Specialty average1,710

Most prescribed

  1. Eliquis511 claims
  2. Metoprolol Succinate336 claims
  3. Dofetilide207 claims
  4. Flecainide Acetate191 claims
  5. Metoprolol Tartrate165 claims
  6. Propafenone Hcl154 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): 24.5 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.

  1. Qualityout of 100 · 30% of the final score0.0
  2. Costout of 100 · 30%81.6
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities0 of 40 points · 15%0.0

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

Industry payments in 2024: $137.36

7 payments; by number, the most common kind was food and beverage; the largest payer was Sanofi-Aventis U.S. LLC. 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.

  1. William Wassynger$137
  2. Specialty average$10,651

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

  1. Crmc Mso Sub 1 IncorporatedCookeville, TN

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

William Walter Wassynger among 94 clinical cardiac electrophysiology physician records in Tennessee

William Walter Wassynger, M.D. is one of 94 clinical cardiac electrophysiology physician records with a practice address in Tennessee. 97% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 82% newer
  • In a Medicare fileYes · 97% of these records are
  • In the CMS Doctors and Clinicians fileYes · 87% of these records are
  • Graduated1989 · median 2000 among the 82 with a school on file
  • Record last updated2022 · 43% 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 Tennessee 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 Tennessee

There are 94 clinical cardiac electrophysiology physician records in Tennessee.

The 8 clinical cardiac electrophysiology physician records with the nearest ZIP codes

  1. Brent Klinkhammer, MDCookeville, TN 385011144740184
  2. Mark Wathen, MDCookeville, TN 385011104925536
  3. Simon Okewole, D.O.Jackson, TN 383051205000296
  4. Maryam Saleem, MDJackson, TN 383011235669730
  5. Mark Coppess, MDMemphis, TN 381381588753727
  6. Jiang Cui, M.D.Germantown, TN 381381447331152
  7. Christopher Ingelmo, M.D.Germantown, TN 381381659417855
  8. Eric Johnson, MDMemphis, TN 381381447342811

Common questions

What is William Walter Wassynger, M.D.'s NPI number?

William Walter Wassynger, M.D.'s National Provider Identifier (NPI) is 1700889888, issued on May 23, 2005. An NPI identifies a provider in billing; it is not a license.

Where is William Walter Wassynger, M.D. located?

The NPPES record lists a practice address at 228 W 4TH St Ste 200, Cookeville, TN, 38501. Phone: (931) 372-0405. Providers update this record themselves, so call before visiting.

How can I verify William Walter Wassynger, M.D.'s license?

NPPES lists Tennessee license number 37302, as entered by the provider. Search the Tennessee Board of Medical Examiners at https://www.tn.gov/health/licensure/me.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does William Walter Wassynger, M.D. prescribe under Medicare Part D?

In 2024, William Walter Wassynger, M.D. had 2,262 Medicare Part D claims for 444 beneficiaries; the average among clinical cardiac electrophysiology physician prescribers was 1,710. Part D covers Medicare prescriptions only.

What is William Walter Wassynger, M.D.'s MIPS final score?

The 2023 MIPS final score is 24.5 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.