Leon M. Ptaszek, MD PHD
Clinical Cardiac Electrophysiology Physician · Boston, MA
Leon M. Ptaszek, MD PHD is a clinical cardiac electrophysiology physician with a practice address in Boston, Massachusetts, and NPI 1841277175, issued on Dec 28, 2005. Check the license (Massachusetts 223624, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Leon M. Ptaszek
- Credential
- MD PHD
- Primary taxonomy
- Clinical Cardiac Electrophysiology Physician 207RC0001X
- License number
- 223624 MA
Self-reported in NPPES; status is on the state search - Practice location
- 55 Fruit Street Grb 800, Boston, MA 02114
- Phone
- (617) 726-2890
- Enumerated
- Dec 28, 2005
- Record last updated
- May 9, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (617) 724-6767
- Medicare enrollment
- Enrolled (PECOS I20110808000256); accepts Medicare assignment
- Medical or professional school
- Icahn School Of Medicine At Mount Sinai, 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest clinical cardiac electrophysiology physician records → All 116 in Massachusetts → Look up another NPI →
Also registered at 55 Fruit Street Grb 800
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lynne ChevoyaNurse Practitioner1396807855
- Beth Snyder, RN, CSAcute Care Nurse Practitioner1558583120
Verify Leon M. Ptaszek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 223624Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% fewer Medicare Part D claims than the average clinical cardiac electrophysiology physician in 2024
546 Medicare Part D claims for 229 beneficiaries, against an average of 1,710 among the 3,173 providers of this specialty who prescribed in Part D. Brand-name drugs were 39% of claims.
Most prescribed
- Eliquis160 claims
- Metoprolol Succinate114 claims
- Xarelto43 claims
- Sotalol41 claims
- Amiodarone Hcl26 claims
- Mexiletine Hcl21 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.
Industry payments in 2024: $62,340.87
43 payments; by number, the most common kind was travel and lodging; the largest payer was Abbott Laboratories. 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 2 group practices
- Mass General Brigham Medical Group Suburban Massachusetts IncNewton, MA
- Massachusetts General Physicians Organization IncDanvers, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Leon M. Ptaszek among 116 clinical cardiac electrophysiology physician records in Massachusetts
Leon M. Ptaszek, MD PHD is one of 116 clinical cardiac electrophysiology physician records with a practice address in Massachusetts. 89% 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, 87% newer
- In a Medicare fileYes · 89% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated2003 · median 2002 among the 93 with a school on file
- Record last updated2018 · 56% 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 Massachusetts 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 Massachusetts
There are 116 clinical cardiac electrophysiology physician records in Massachusetts.
All 116 in Massachusetts → Every provider in Boston → Clinical Cardiac Electrophysiology Physician nationwide →
The 8 clinical cardiac electrophysiology physician records with the nearest ZIP codes
- Conor Barrett, MDBoston, MA 021141548434517
- Eugene Chung, M.D.Boston, MA 021141326087131
- Saumya Das, MDBoston, MA 021141346224508
- Shaan Khurshid, MD, MPHBoston, MA 021141316350267
- Steven Lubitz, M.D.Boston, MA 021141154589422
- Moussa Mansour, MDBoston, MA 021141588649560
- Gregory Michaud, MDBoston, MA 021141386606705
- David Milan, MDBoston, MA 021141073596953
Common questions
What is Leon M. Ptaszek, MD PHD's NPI number?
Leon M. Ptaszek, MD PHD's National Provider Identifier (NPI) is 1841277175, issued on Dec 28, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Leon M. Ptaszek, MD PHD located?
The NPPES record lists a practice address at 55 Fruit Street Grb 800, Boston, MA, 02114. Phone: (617) 726-2890. Providers update this record themselves, so call before visiting.
How can I verify Leon M. Ptaszek, MD PHD's license?
NPPES lists Massachusetts license number 223624, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Leon M. Ptaszek, MD PHD prescribe under Medicare Part D?
In 2024, Leon M. Ptaszek, MD PHD had 546 Medicare Part D claims for 229 beneficiaries; the average among clinical cardiac electrophysiology physician prescribers was 1,710. Part D covers Medicare prescriptions only.
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.