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

Guillermo N Alonso, MD

Individual provider Legal Medicine · NPI 1336120708

Guillermo N Alonso, MD is an Internal Medicine in Miami, Florida. Qualified in 1983, 43 years ago. Practices as a sole proprietor, works from 2 locations and accepts Medicare assignment. Licensed in Florida.

Years since qualifying
43
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

8000 W Flagler St Ste 206
Miami, FL 33144-2153
Phone: (786) 703-1620
Fax: (786) 709-1619
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 12700 Sw 128th St, Miami, FL 33186-5377 — (305) 278-7579

Specialties & licences

Legal Medicine (primary) Taxonomy 173000000X · Licence ME56063 (FL)

Record details

NPI number1336120708
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedNovember 10, 2005
Last updated in NPPESJanuary 7, 2026
Certification dateJanuary 7, 2026
Mailing address3441 Sw 134 Court, Miami, FL 33175-6944

Medicare enrollment

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

Medicare specialtyINTERNAL MEDICINE
Medical schoolOTHER
Graduated 1983 (43 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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