Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Gregory Mark Brown, MD

Individual provider Internal Medicine Physician · NPI 1386647956

Dr. Gregory Mark Brown, MD is an Internal Medicine in Leesburg, Florida. Graduated from Yale University School of Medicine in 1988, 38 years ago. Practices with Legacy Healthcare Services Inc, a 3,624-clinician group and accepts Medicare assignment. Licensed in Florida.

Years since qualifying
38
Trained at
Yale University School of Medicine
Licensed in
FL
In the registry since
2005
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

619 W Dixie Ave
Leesburg, FL 34748-2602
Phone: (352) 314-2424
Fax: (352) 314-3010
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence ME0058899 (FL)

Record details

NPI number1386647956
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedMay 27, 2005
Last updated in NPPESApril 2, 2015
Mailing address619 W Dixie Ave, Leesburg, FL 34748-2602

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolYALE UNIVERSITY SCHOOL OF MEDICINE
Graduated 1988 (38 years in practice)
Group practice Legacy Healthcare Services Inc — 3624 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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