Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Mr. Leon Mullen, MD

Individual provider Cardiovascular Disease Physician · NPI 1497831986

Mr. Leon Mullen, MD is a Cardiovascular Disease (Cardiology) in East Meadow, New York. Qualified in 1976, 50 years ago. Practices with Mercy Internal Medicine PC, an 11-clinician group and accepts Medicare assignment. Licensed in New York.

Years since qualifying
50
Licensed in
NY
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

30 Merrick Ave Ste 105
East Meadow, NY 11554-1580
Phone: (516) 542-0255
Fax: (516) 542-0276
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Cardiovascular Disease Physician (primary) Taxonomy 207RC0000X · Licence 132791 (NY)

Record details

NPI number1497831986
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedOctober 27, 2006
Last updated in NPPESJanuary 14, 2014
Mailing address30 Merrick Avenue, Suite 105, East Meadow, NY 11554-1580

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyCARDIOVASCULAR DISEASE (CARDIOLOGY)
Medical schoolOTHER
Graduated 1976 (50 years in practice)
Group practice Mercy Internal Medicine Pc — 11 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

Other providers in East Meadow