Leon Gregory De Masi, M.D., M.P.H.
Public Health & General Preventive Medicine Physician · Broomall, PA
Leon Gregory De Masi, M.D., M.P.H. is a public health & general preventive medicine physician with a practice address in Broomall, Pennsylvania, and NPI 1518923796, issued on Apr 25, 2006. Check the license (Pennsylvania MD025728E, as entered in NPPES) on the Pennsylvania Department of State (PALS); the Medicare figures below come from public CMS files.
- Name
- Leon Gregory De Masi
- Credential
- M.D., M.P.H.
- Primary taxonomy
- Public Health & General Preventive Medicine Physician 2083P0901X
- License numbers
- MD025728E PA
25MA05089200 NJ
Self-reported in NPPES; status is on the state search - Practice location
- 1999 Sproul RD, Broomall, PA 19008
- Phone
- (610) 353-5840
- Enumerated
- Apr 25, 2006
- Record last updated
- Oct 22, 2014 (not updated in 12 years: call before relying on the address or phone)
- Fax
- (610) 353-3420
- Entity
- Type 1 · individual
8 nearest public health & general preventive medicine physician records → All 39 in Pennsylvania → Look up another NPI →
Also registered at 1999 Sproul RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Herbert Avart, DORehabilitation Practitioner1861446908
- Laura Brooks, P.A.Medical Physician Assistant1245553866
- Stephanie Diclemente, P.A.Medical Physician Assistant1821311440
- Mark Edelstein, M.D.Cardiovascular Disease Physician1750385696
- Michael Ezekowitz, MDCardiovascular Disease Physician1366413296
- Julian Gladstone, M.D.Cardiovascular Disease Physician1073517918
Verify Leon Gregory De Masi in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersPennsylvania Department of State (PALS)
Search for license MD025728ECheck the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average public health & general preventive medicine physician in 2024
18 Medicare Part D claims, against an average of 820 among the 336 providers of this specialty who prescribed in Part D.
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.
Leon Gregory De Masi among 39 public health & general preventive medicine physician records in Pennsylvania
Leon Gregory De Masi, M.D., M.P.H. is one of 39 public health & general preventive medicine physician records with a practice address in Pennsylvania. 23% 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 3% of them.
- NPI issued2006 · 3% of these records are older, 90% newer
- In a Medicare fileYes · 23% of these records are
- In the CMS Doctors and Clinicians fileNo · 5% of these records are
- Record last updated2014 · 79% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2083P0901X and a Pennsylvania practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Public Health & General Preventive Medicine Physician providers in Pennsylvania
There are 39 public health & general preventive medicine physician records in Pennsylvania.
All 39 in Pennsylvania → Every provider in Broomall → Public Health & General Preventive Medicine Physician nationwide →
The 8 public health & general preventive medicine physician records with the nearest ZIP codes
- Stuart Shapiro, M.D.Bala Cynwyd, PA 190041265754113
- Randall Hyer, M.D., PH.D., M.P.H.Lower Gwynedd, PA 190021316204712
- Wendy Stephenson, M.D.Maple Glen, PA 190021073807210
- Philip Lewis, M.D.Yardley, PA 190671255650727
- Ramy Mahmoud, M.D., MPHYardley, PA 190671356662431
- Carrie Kefalas, M.D.Pipersville, PA 189471336477843
- Robert Peterson, D.O.Newtown, PA 189401467581025
- Marguerite Hawkins, M.D., M.S.Philadelphia, PA 191031699005942
Common questions
What is Leon Gregory De Masi, M.D., M.P.H.'s NPI number?
Leon Gregory De Masi, M.D., M.P.H.'s National Provider Identifier (NPI) is 1518923796, issued on Apr 25, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Leon Gregory De Masi, M.D., M.P.H. located?
The NPPES record lists a practice address at 1999 Sproul RD, Broomall, PA, 19008. Phone: (610) 353-5840. Providers update this record themselves, so call before visiting.
How can I verify Leon Gregory De Masi, M.D., M.P.H.'s license?
NPPES lists Pennsylvania license number MD025728E, as entered by the provider. Search the Pennsylvania Department of State (PALS) at https://www.pals.pa.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Leon Gregory De Masi, M.D., M.P.H. prescribe under Medicare Part D?
In 2024, Leon Gregory De Masi, M.D., M.P.H. had 18 Medicare Part D claims; the average among public health & general preventive medicine physician prescribers was 820. 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.